API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* Revised: Sep 02, 2026 Chandra Spacecraft (X-ray observatory) / (Earth) -151 http://xrtpub.harvard.edu/index.html Chandra X-ray Observatory: Deployment (STS-93) = July 23, 1999 Data storage = 1.8 gbs Science mission = ~5 years Length (sun shade open) = 45.3 m Orbital check-out = 2 months Length (sun shade clsd) = 38.7 m ORBITAL DATA: Inclination = 28.5 degrees Orbital period = ~64 hours Apogee altitude = ~ 86,487 km Observing time / orbit = ~55 hours Perigee altitude = ~ 5,999 km WEIGHTS & PROPULSION: Dry = 10,560 lbs Propellant = 2,153 lbs Pressurant = 10 lb Total launch weight = 12,930 lb Engines = 4 Thrust per engine = 105 lb SPACECRAFT TRAJECTORY (from CFA): Trajectory after 2026-Sep-01 is a prediction Trajectory name Start Stop ---------------------------- ----------- ----------- cxo_99219_06045 1999-Aug-07 2006-Feb-14 cxo_06002_10103 2006-Feb-03 2010-Feb-25 CXO_10056_27061 2010-Feb-25 2027-Mar-02 ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Mon Sep 14 13:53:48 2026 Pasadena, USA / Horizons ******************************************************************************* Target body name: Chandra Observatory (spacecraft) (-151) {source: chandra_merged} Center body name: Earth (399) {source: chandra_merged} Center-site name: iTelescope Obs.,Beryl Junc. (Sato) ******************************************************************************* Start time : A.D. 2026-Sep-02 00:00:00.0000 UT Stop time : A.D. 2026-Sep-05 00:00:00.0000 UT Step-size : 10 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 246.3025, 37.7377919, 1.56349 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 246.3025,5051.53114,3883.42609 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : ITRF93 {East-longitude positive} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Target primary : Earth Vis. interferer : MOON (R_eq= 1737.400) km {source: chandra_merged} Rel. light bend : Sun {source: chandra_merged} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian RTS-only print : NO EOP file : eop.260911.p261208 EOP coverage : DATA-BASED 1962-JAN-20 TO 2026-SEP-11. PREDICTS-> 2026-DEC-07 Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation ( 0.0deg=YES),Airmass (>38.000=NO), Daylight (YES) Table cut-offs 2: Solar elongation ( 12.0,180.0=YES),Local Hour Angle( 0.0=NO ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) *************************************************************************************************************************************************************************************************************************************************** Date__(UT)__HR:MN R.A._____(ICRF)_____DEC Azi____(a-app)___Elev APmag S-brt r rdot delta deldot S-O-T /r S-T-O T-O-M/MN_Illu% RA_3sigma DEC_3sigma Sky_motion Sky_mot_PA RelVel-ANG *************************************************************************************************************************************************************************************************************************************************** $$SOE >..... Daylight Cut-off Requested .....< 2026-Sep-02 02:20 C 18 00 22.34 +32 46 56.8 125.624876 81.947659 n.a. n.a. 1.009217783722 0.1903245 0.00086608788496 -0.5093450 101.4229 /T 78.5288 107.4/ 74.1567 n.a. n.a. 61.644239 163.78499 -38.28415 2026-Sep-02 02:30 C 18 00 35.78 +32 36 58.7 138.011101 83.279166 n.a. n.a. 1.009218541941 0.1877602 0.00086404979050 -0.5069001 101.5142 /T 78.4376 107.5/ 74.0703 n.a. n.a. 62.690389 164.17896 -37.74809 2026-Sep-02 02:40 N 18 00 49.12 +32 26 49.4 155.116808 84.210817 n.a. n.a. 1.009219289779 0.1851471 0.00086202168265 -0.5043690 101.6062 /T 78.3457 107.6/ 73.9844 n.a. n.a. 63.761884 164.50723 -37.20581 2026-Sep-02 02:50 Ne 18 01 02.41 +32 16 28.8 176.165783 84.528518 n.a. n.a. 1.009220027037 0.1824847 0.00086000386034 -0.5017750 101.6991 /T 78.2530 107.8/ 73.8991 n.a. n.a. 64.856277 164.77176 -36.66014 2026-Sep-02 03:00 Nt 18 01 15.70 +32 05 56.8 196.955128 84.126943 n.a. n.a. 1.009220753516 0.1797722 0.00085799652819 -0.4991419 101.7929 /T 78.1593 107.9/ 73.8143 n.a. n.a. 65.971311 164.97467 -36.11374 2026-Sep-02 03:10 A 18 01 29.04 +31 55 13.4 213.554409 83.127493 n.a. n.a. 1.009221469014 0.1770086 0.00085599979534 -0.4964936 101.8879 /T 78.0645 108.0/ 73.7302 n.a. n.a. 67.104916 165.11816 -35.56913 2026-Sep-02 03:20 A 18 01 42.48 +31 44 18.7 225.505315 81.741890 n.a. n.a. 1.009222173325 0.1741933 0.00085401367444 -0.4938543 101.9842 /T 77.9683 108.1/ 73.6467 n.a. n.a. 68.255214 165.20454 -35.02866 2026-Sep-02 03:30 A 18 01 56.06 +31 33 12.5 234.021374 80.129572 n.a. n.a. 1.009222866238 0.1713252 0.00085203808091 -0.4912482 102.0820 /T 77.8706 108.2/ 73.5639 n.a. n.a. 69.420515 165.23615 -34.49455 2026-Sep-02 03:40 18 02 09.85 +31 21 55.0 240.273248 78.383218 n.a. n.a. 1.009223547541 0.1684036 0.00085007283230 -0.4886998 102.1815 /T 77.7712 108.3/ 73.4818 n.a. n.a. 70.599313 165.21536 -33.96884 2026-Sep-02 03:50 18 02 23.89 +31 10 26.2 245.047731 76.554015 n.a. n.a. 1.009224217017 0.1654275 0.00084811764805 -0.4862336 102.2828 /T 77.6701 108.5/ 73.4005 n.a. n.a. 71.790283 165.14454 -33.45346 2026-Sep-02 04:00 18 02 38.22 +30 58 46.1 248.835206 74.670970 n.a. n.a. 1.009224874446 0.1623959 0.00084617214933 -0.4838741 102.3861 /T 77.5669 108.6/ 73.3199 n.a. n.a. 72.992276 165.02609 -32.95018 2026-Sep-02 04:10 m 18 02 52.90 +30 46 54.8 251.941966 72.751332 n.a. n.a. 1.009225519603 0.1593079 0.00084423585916 -0.4816457 102.4915 /T 77.4616 108.7/ 73.2401 n.a. n.a. 74.204307 164.86236 -32.46066 2026-Sep-02 04:20 m 18 03 07.98 +30 34 52.4 254.564290 70.805898 n.a. n.a. 1.009226152261 0.1561624 0.00084230820276 -0.4795728 102.5993 /T 77.3539 108.8/ 73.1610 n.a. n.a. 75.425555 164.65569 -31.98640 2026-Sep-02 04:30 m 18 03 23.49 +30 22 38.9 256.831984 68.841765 n.a. n.a. 1.009226772185 0.1529585 0.00084038850811 -0.4776795 102.7096 /T 77.2438 109.0/ 73.0829 n.a. n.a. 76.655349 164.40841 -31.52880 2026-Sep-02 04:40 m 18 03 39.49 +30 10 14.5 258.833608 66.863813 n.a. n.a. 1.009227379140 0.1496949 0.00083847600676 -0.4759897 102.8224 /T 77.1310 109.1/ 73.0055 n.a. n.a. 77.893161 164.12278 -31.08916 2026-Sep-02 04:50 m 18 03 56.03 +29 57 39.3 260.631358 64.875538 n.a. n.a. 1.009227972884 0.1463707 0.00083656983484 -0.4745271 102.9381 /T 77.0155 109.2/ 72.9290 n.a. n.a. 79.138600 163.80105 -30.66862 2026-Sep-02 05:00 m 18 04 13.14 +29 44 53.3 262.270069 62.879539 n.a. n.a. 1.009228553172 0.1429845 0.00083466903426 -0.4733150 103.0567 /T 76.8970 109.3/ 72.8535 n.a. n.a. 80.391396 163.44543 -30.26826 2026-Sep-02 05:10 m 18 04 30.86 +29 31 56.8 263.782836 60.877819 n.a. n.a. 1.009229119753 0.1395353 0.00083277255420 -0.4723763 103.1784 /T 76.7755 109.4/ 72.7788 n.a. n.a. 81.651400 163.05807 -29.88903 2026-Sep-02 05:20 m 18 04 49.25 +29 18 49.8 265.194603 58.871968 n.a. n.a. 1.009229672371 0.1360218 0.00083087925272 -0.4717335 103.3033 /T 76.6507 109.6/ 72.7050 n.a. n.a. 82.918566 162.64109 -29.53177 2026-Sep-02 05:30 m 18 05 08.35 +29 05 32.5 266.524540 56.863291 n.a. n.a. 1.009230210767 0.1324427 0.00082898789863 -0.4714086 103.4315 /T 76.5226 109.7/ 72.6321 n.a. n.a. 84.192947 162.19657 -29.19725 2026-Sep-02 05:40 m 18 05 28.18 +28 52 05.1 267.787634 54.852882 n.a. n.a. 1.009230734673 0.1287967 0.00082709717359 -0.4714231 103.5633 /T 76.3909 109.8/ 72.5602 n.a. n.a. 85.474683 161.72654 -28.88612 2026-Sep-02 05:50 m 18 05 48.80 +28 38 27.7 268.995790 52.841687 n.a. n.a. 1.009231243820 0.1250824 0.00082520567426 -0.4717979 103.6987 /T 76.2556 109.9/ 72.4892 n.a. n.a. 86.763992 161.23299 -28.59896 2026-Sep-02 06:00 m 18 06 10.23 +28 24 40.5 270.158612 50.830539 n.a. n.a. 1.009231737931 0.1212984 0.00082331191477 -0.4725531 103.8379 /T 76.1166 110.0/ 72.4192 n.a. n.a. 88.061164 160.71786 -28.33623 2026-Sep-02 06:10 m 18 06 32.52 +28 10 43.6 271.283947 48.820186 n.a. n.a. 1.009232216722 0.1174432 0.00082141432932 -0.4737085 103.9810 /T 75.9737 110.1/ 72.3501 n.a. n.a. 89.366549 160.18305 -28.09834 2026-Sep-02 06:20 m 18 06 55.70 +27 56 37.3 272.378300 46.811315 n.a. n.a. 1.009232679907 0.1135153 0.00081951127490 -0.4752830 104.1281 /T 75.8267 110.2/ 72.2820 n.a. n.a. 90.680548 159.63041 -27.88559 2026-Sep-02 06:30 m 18 07 19.80 +27 42 21.6 273.447124 44.804560 n.a. n.a. 1.009233127188 0.1095132 0.00081760103420 -0.4772945 104.2793 /T 75.6756 110.3/ 72.2148 n.a. n.a. 92.003610 159.06177 -27.69821 2026-Sep-02 06:40 m 18 07 44.84 +27 27 56.8 274.495053 42.800523 n.a. n.a. 1.009233558267 0.1054352 0.00081568181868 -0.4797606 104.4347 /T 75.5203 110.4/ 72.1487 n.a. n.a. 93.336218 158.47888 -27.53635 2026-Sep-02 06:50 m 18 08 10.88 +27 13 23.1 275.526065 40.799774 n.a. n.a. 1.009233972835 0.1012796 0.00081375177172 -0.4826978 104.5945 /T 75.3606 110.5/ 72.0834 n.a. n.a. 94.678888 157.88348 -27.40008 2026-Sep-02 07:00 m 18 08 37.92 +26 58 40.6 276.543619 38.802865 n.a. n.a. 1.009234370577 0.0970446 0.00081180897192 -0.4861218 104.7588 /T 75.1965 110.6/ 72.0191 n.a. n.a. 96.032157 157.27723 -27.28940 2026-Sep-02 07:10 m 18 09 06.00 +26 43 49.4 277.550756 36.810328 n.a. n.a. 1.009234751171 0.0927286 0.00080985143653 -0.4900476 104.9276 /T 75.0278 110.7/ 71.9558 n.a. n.a. 97.396583 156.66178 -27.20423 2026-Sep-02 07:20 m 18 09 35.14 +26 28 49.8 278.550177 34.822690 n.a. n.a. 1.009235114290 0.0883295 0.00080787712492 -0.4944890 105.1011 /T 74.8545 110.8/ 71.8934 n.a. n.a. 98.772734 156.03871 -27.14443 2026-Sep-02 07:30 m 18 10 05.37 +26 13 42.0 279.544311 32.840466 n.a. n.a. 1.009235459595 0.0838455 0.00080588394216 -0.4994591 105.2793 /T 74.6764 110.9/ 71.8319 n.a. n.a. 100.16119 155.40955 -27.10978 2026-Sep-02 07:40 m 18 10 36.71 +25 58 25.9 280.535367 30.864170 n.a. n.a. 1.009235786742 0.0792746 0.00080386974275 -0.5049701 105.4623 /T 74.4936 111.0/ 71.7713 n.a. n.a. 101.56252 154.77581 -27.10003 2026-Sep-02 07:50 m 18 11 09.18 +25 43 02.0 281.525370 28.894314 n.a. n.a. 1.009236095378 0.0746146 0.00080183233427 -0.5110333 105.6503 /T 74.3058 111.1/ 71.7116 n.a. n.a. 102.97732 154.13891 -27.11483 2026-Sep-02 08:00 m 18 11 42.80 +25 27 30.1 282.516202 26.931411 n.a. n.a. 1.009236385142 0.0698634 0.00079976948122 -0.5176589 105.8432 /T 74.1130 111.2/ 71.6528 n.a. n.a. 104.40616 153.50027 -27.15380 2026-Sep-02 08:10 m 18 12 17.58 +25 11 50.6 283.509629 24.975981 n.a. n.a. 1.009236655664 0.0650188 0.00079767890877 -0.5248562 106.0412 /T 73.9152 111.3/ 71.5949 n.a. n.a. 105.84962 152.86122 -27.21649 2026-Sep-02 08:20 m 18 12 53.55 +24 56 03.5 284.507322 23.028548 n.a. n.a. 1.009236906563 0.0600783 0.00079555830669 -0.5326336 106.2443 /T 73.7122 111.3/ 71.5378 n.a. n.a. 107.30826 152.22306 -27.30240 2026-Sep-02 08:30 m 18 13 30.72 +24 40 08.9 285.510879 21.089644 n.a. n.a. 1.009237137452 0.0550397 0.00079340533311 -0.5409984 106.4526 /T 73.5040 111.4/ 71.4816 n.a. n.a. 108.78266 151.58703 -27.41099 2026-Sep-02 08:40 m 18 14 09.10 +24 24 07.0 286.521843 19.159816 n.a. n.a. 1.009237347931 0.0499004 0.00079121761853 -0.5499571 106.6662 /T 73.2906 111.5/ 71.4261 n.a. n.a. 110.27337 150.95433 -27.54167 2026-Sep-02 08:50 m 18 14 48.71 +24 07 57.8 287.541714 17.239619 n.a. n.a. 1.009237537591 0.0446578 0.00078899276954 -0.5595152 106.8851 /T 73.0719 111.5/ 71.3714 n.a. n.a. 111.78095 150.32610 -27.69382 2026-Sep-02 09:00 m 18 15 29.55 +23 51 41.4 288.571966 15.329627 n.a. n.a. 1.009237706013 0.0393092 0.00078672837279 -0.5696771 107.1093 /T 72.8479 111.6/ 71.3175 n.a. n.a. 113.30595 149.70343 -27.86677 2026-Sep-02 09:10 m 18 16 11.64 +23 35 18.0 289.614055 13.430429 n.a. n.a. 1.009237852765 0.0338517 0.00078442199878 -0.5804464 107.3390 /T 72.6184 111.7/ 71.2643 n.a. n.a. 114.84893 149.08736 -28.05981 2026-Sep-02 09:20 m 18 16 54.99 +23 18 47.4 290.669429 11.542634 n.a. n.a. 1.009237977406 0.0282825 0.00078207120563 -0.5918258 107.5741 /T 72.3834 111.7/ 71.2118 n.a. n.a. 116.41043 148.47889 -28.27222 2026-Sep-02 09:30 m 18 17 39.60 +23 02 09.9 291.739539 9.666876 n.a. n.a. 1.009238079480 0.0225985 0.00077967354293 -0.6038168 107.8147 /T 72.1430 111.8/ 71.1599 n.a. n.a. 117.99102 147.87895 -28.50324 2026-Sep-02 09:40 m 18 18 25.48 +22 45 25.3 292.825844 7.803810 n.a. n.a. 1.009238158522 0.0167965 0.00077722655532 -0.6164203 108.0609 /T 71.8970 111.8/ 71.1087 n.a. n.a. 119.59127 147.28843 -28.75208 2026-Sep-02 09:50 m 18 19 12.64 +22 28 33.8 293.929821 5.954121 n.a. n.a. 1.009238214051 0.0108732 0.00077472778625 -0.6296361 108.3127 /T 71.6454 111.9/ 71.0581 n.a. n.a. 121.21176 146.70817 -29.01795 2026-Sep-02 10:00 m 18 20 01.08 +22 11 35.2 295.052971 4.118522 n.a. n.a. 1.009238245575 0.0048252 0.00077217478155 -0.6434631 108.5701 /T 71.3882 111.9/ 71.0080 n.a. n.a. 122.85310 146.13897 -29.30002 2026-Sep-02 10:10 m 18 20 50.80 +21 54 29.6 296.196822 2.297760 n.a. n.a. 1.009238252585 -0.0013510 0.00076956509290 -0.6578995 108.8331 /T 71.1254 111.9/ 70.9584 n.a. n.a. 124.51593 145.58157 -29.59747 2026-Sep-02 10:20 m 18 21 41.81 +21 37 16.9 297.362939 0.492619 n.a. n.a. 1.009238234561 -0.0076593 0.00076689628131 -0.6729426 109.1019 /T 70.8568 112.0/ 70.9093 n.a. n.a. 126.20090 145.03666 -29.90943 >..... Elevation Cut-off Requested .....< 2026-Sep-03 06:40 m 11 39 27.90 +48 53 21.0 342.889525 -0.378485 n.a. n.a. 1.008503211913 -0.8439764 0.00039912095727 2.1231610 42.6508 /T 137.3343 90.2/ 61.4680 n.a. n.a. 480.53433 67.865739 42.481666 2026-Sep-03 06:50 m 11 46 54.58 +49 22 06.2 343.456991 -0.078681 n.a. n.a. 1.008499912699 -0.8016295 0.00040759279434 2.1014370 43.5244 /T 136.4602 90.7/ 61.3906 n.a. n.a. 461.97957 69.204478 42.712601 2026-Sep-03 07:00 m 11 54 12.16 +49 48 07.6 344.025887 0.176468 n.a. n.a. 1.008496778531 -0.7616414 0.00041597706461 2.0794984 44.3818 /T 135.6021 91.3/ 61.3143 n.a. n.a. 444.76211 70.507508 42.916132 2026-Sep-03 07:10 m 12 01 20.73 +50 11 39.1 344.597899 0.390985 n.a. n.a. 1.008493800330 -0.7238247 0.00042427302538 2.0574023 45.2231 /T 134.7603 91.8/ 61.2390 n.a. n.a. 428.74944 71.773906 43.094393 2026-Sep-03 07:20 m 12 08 20.37 +50 32 52.9 345.174578 0.568608 n.a. n.a. 1.008490969730 -0.6880112 0.00043248014060 2.0351951 46.0482 /T 133.9346 92.3/ 61.1649 n.a. n.a. 413.82446 73.002977 43.249333 2026-Sep-03 07:30 m 12 15 11.21 +50 52 00.5 345.757347 0.712823 n.a. n.a. 1.008488279007 -0.6540493 0.00044059804096 2.0129138 46.8573 /T 133.1249 92.8/ 61.0920 n.a. n.a. 399.88340 74.194231 43.382724 2026-Sep-03 07:40 m 12 21 53.35 +51 09 12.1 346.347508 0.826896 n.a. n.a. 1.008485721014 -0.6218022 0.00044862649083 1.9905883 47.6506 /T 132.3310 93.2/ 61.0201 n.a. n.a. 386.83413 75.347367 43.496188 2026-Sep-03 07:50 m 12 28 26.90 +51 24 37.2 346.946245 0.913897 n.a. n.a. 1.008483289125 -0.5911462 0.00045656536109 1.9682420 48.4285 /T 131.5525 93.7/ 60.9493 n.a. n.a. 374.59468 76.462250 43.591208 2026-Sep-03 08:00 m 12 34 51.99 +51 38 24.4 347.554636 0.976725 n.a. n.a. 1.008480977186 -0.5619692 0.00046441460664 1.9458935 49.1915 /T 130.7890 94.1/ 60.8796 n.a. n.a. 363.09194 77.538898 43.669141 2026-Sep-03 08:10 m 12 41 08.77 +51 50 41.8 348.173653 1.018120 n.a. n.a. 1.008478779475 -0.5341691 0.00047217424797 1.9235570 49.9398 /T 130.0401 94.5/ 60.8111 n.a. n.a. 352.26060 78.577466 43.731234 2026-Sep-03 08:20 m 12 47 17.36 +52 01 36.5 348.804169 1.040687 n.a. n.a. 1.008476690657 -0.5076532 0.00047984435598 1.9012436 50.6740 /T 129.3054 94.9/ 60.7435 n.a. n.a. 342.04217 79.578231 43.778629 2026-Sep-03 08:30 e 12 53 17.91 +52 11 15.2 349.446959 1.046907 n.a. n.a. 1.008474705755 -0.4823367 0.00048742503967 1.8789613 51.3944 /T 128.5844 95.3/ 60.6771 n.a. n.a. 332.38419 80.541577 43.812379 2026-Sep-03 08:40 m 12 59 10.57 +52 19 44.1 350.102711 1.039147 n.a. n.a. 1.008472820116 -0.4581423 0.00049491643604 1.8567161 52.1016 /T 127.8767 95.6/ 60.6117 n.a. n.a. 323.23949 81.467984 43.833452 2026-Sep-03 08:50 m 13 04 55.50 +52 27 08.9 350.772019 1.019673 n.a. n.a. 1.008471029383 -0.4349990 0.00050231870203 1.8345121 52.7958 /T 127.1819 96.0/ 60.5473 n.a. n.a. 314.56560 82.358013 43.842741 2026-Sep-03 09:00 m 13 10 32.85 +52 33 34.7 351.455396 0.990659 n.a. n.a. 1.008469329472 -0.4128419 0.00050963200806 1.8123518 53.4776 /T 126.4996 96.3/ 60.4839 n.a. n.a. 306.32419 83.212301 43.841073 2026-Sep-03 09:10 m 13 16 02.78 +52 39 06.3 352.153272 0.954192 n.a. n.a. 1.008467716551 -0.3916112 0.00051685653293 1.7902370 54.1473 /T 125.8293 96.6/ 60.4215 n.a. n.a. 298.48063 84.031547 43.829211 2026-Sep-03 09:20 m 13 21 25.45 +52 43 48.3 352.865998 0.912281 n.a. n.a. 1.008466187015 -0.3712518 0.00052399245989 1.7681682 54.8053 /T 125.1708 96.9/ 60.3600 n.a. n.a. 291.00355 84.816501 43.807860 2026-Sep-03 09:30 m 13 26 41.02 +52 47 44.6 353.593849 0.866861 n.a. n.a. 1.008464737473 -0.3517131 0.00053103997372 1.7461456 55.4519 /T 124.5237 97.2/ 60.2995 n.a. n.a. 283.86452 85.567961 43.777679 2026-Sep-03 09:40 m 13 31 49.66 +52 50 59.0 354.337026 0.819799 n.a. n.a. 1.008463364729 -0.3329481 0.00053799925856 1.7241688 56.0875 /T 123.8876 97.5/ 60.2399 n.a. n.a. 277.03769 86.286764 43.739278 2026-Sep-03 09:50 m 13 36 51.51 +52 53 35.0 355.095658 0.772895 n.a. n.a. 1.008462065768 -0.3149135 0.00054487049649 1.7022371 56.7124 /T 123.2622 97.8/ 60.1811 n.a. n.a. 270.49956 86.973776 43.693225 2026-Sep-03 10:00 m 13 41 46.75 +52 55 35.8 355.869805 0.727891 n.a. n.a. 1.008460837740 -0.2975693 0.00055165386667 1.6803498 57.3268 /T 122.6472 98.1/ 60.1231 n.a. n.a. 264.22870 87.629891 43.640052 2026-Sep-03 10:10 m 13 46 35.52 +52 57 04.5 356.659460 0.686466 n.a. n.a. 1.008459677954 -0.2808782 0.00055834954497 1.6585060 57.9312 /T 122.0424 98.3/ 60.0660 n.a. n.a. 258.20556 88.256022 43.580255 2026-Sep-03 10:20 m 13 51 17.98 +52 58 03.7 357.464551 0.650244 n.a. n.a. 1.008458583860 -0.2648056 0.00056495770399 1.6367049 58.5257 /T 121.4474 98.6/ 60.0096 n.a. n.a. 252.41228 88.853100 43.514302 2026-Sep-03 10:30 m 13 55 54.28 +52 58 36.0 358.284944 0.620794 n.a. n.a. 1.008457553043 -0.2493194 0.00057147851350 1.6149459 59.1105 /T 120.8620 98.8/ 59.9540 n.a. n.a. 246.83251 89.422067 43.442632 2026-Sep-03 10:40 m 14 00 24.57 +52 58 43.8 359.120442 0.599631 n.a. n.a. 1.008456583211 -0.2343896 0.00057791214105 1.5932286 59.6860 /T 120.2861 99.0/ 59.8990 n.a. n.a. 241.45125 89.963873 43.365658 2026-Sep-03 10:50 m 14 04 49.00 +52 58 29.1 359.970791 0.588215 n.a. n.a. 1.008455672189 -0.2199883 0.00058425875293 1.5715527 60.2523 /T 119.7193 99.3/ 59.8447 n.a. n.a. 236.25478 90.479474 43.283774 2026-Sep-03 11:00 t 14 09 07.71 +52 57 54.1 0.835679 0.587958 n.a. n.a. 1.008454817911 -0.2060895 0.00059051851525 1.5499184 60.8096 /T 119.1615 99.5/ 59.7910 n.a. n.a. 231.23045 90.969830 43.197352 2026-Sep-03 11:10 m 14 13 20.83 +52 57 00.6 1.714740 0.600215 n.a. n.a. 1.008454018411 -0.1926689 0.00059669159519 1.5283261 61.3581 /T 118.6126 99.7/ 59.7379 n.a. n.a. 226.36664 91.435901 43.106747 2026-Sep-03 11:20 m 14 17 28.50 +52 55 50.4 2.607556 0.626293 n.a. n.a. 1.008453271816 -0.1797036 0.00060277816244 1.5067765 61.8979 /T 118.0723 99.9/ 59.6852 n.a. n.a. 221.65268 91.878649 43.012300 2026-Sep-03 11:30 m 14 21 30.86 +52 54 24.9 3.513660 0.667447 n.a. n.a. 1.008452576344 -0.1671724 0.00060877839067 1.4852710 62.4293 /T 117.5404 100.0/ 59.6331 n.a. n.a. 217.07870 92.299032 42.914337 2026-Sep-03 11:40 Am 14 25 28.01 +52 52 45.7 4.432534 0.724879 n.a. n.a. 1.008451930295 -0.1550552 0.00061469245910 1.4638110 62.9523 /T 117.0169 100.2/ 59.5813 n.a. n.a. 212.63560 92.698005 42.813175 2026-Sep-03 11:50 Am 14 29 20.10 +52 50 54.2 5.363618 0.799740 n.a. n.a. 1.008451332046 -0.1433333 0.00062052055412 1.4423986 63.4672 /T 116.5016 100.4/ 59.5300 n.a. n.a. 208.31499 93.076522 42.709117 2026-Sep-03 12:00 Am 14 33 07.23 +52 48 51.6 6.306310 0.893127 n.a. n.a. 1.008450780047 -0.1319890 0.00062626287101 1.4210362 63.9740 /T 115.9944 100.6/ 59.4789 n.a. n.a. 204.10911 93.435531 42.602463 2026-Sep-03 12:10 Nm 14 36 49.53 +52 46 39.0 7.259965 1.006087 n.a. n.a. 1.008450272818 -0.1210058 0.00063191961558 1.3997266 64.4728 /T 115.4952 100.7/ 59.4282 n.a. n.a. 200.01079 93.775979 42.493502 2026-Sep-03 12:20 Nm 14 40 27.09 +52 44 17.5 8.223906 1.139611 n.a. n.a. 1.008449808942 -0.1103681 0.00063749100590 1.3784731 64.9637 /T 115.0038 100.9/ 59.3776 n.a. n.a. 196.01339 94.098806 42.382521 2026-Sep-03 12:30 Nm 14 44 00.03 +52 41 48.2 9.197418 1.294639 n.a. n.a. 1.008449387062 -0.1000611 0.00064297727403 1.3572793 65.4469 /T 114.5202 101.0/ 59.3273 n.a. n.a. 192.11075 94.404951 42.269800 2026-Sep-03 12:40 Cm 14 47 28.44 +52 39 11.8 10.179758 1.472054 n.a. n.a. 1.008449005881 -0.0900711 0.00064837866767 1.3361495 65.9224 /T 114.0443 101.2/ 59.2771 n.a. n.a. 188.29719 94.695351 42.155620 2026-Sep-03 12:50 Cm 14 50 52.43 +52 36 29.4 11.170156 1.672689 n.a. n.a. 1.008448664154 -0.0803849 0.00065369545186 1.3150881 66.3903 /T 113.5760 101.3/ 59.2269 n.a. n.a. 184.56742 94.970938 42.040256 2026-Sep-03 13:00 Cm 14 54 12.08 +52 33 41.5 12.167817 1.897317 n.a. n.a. 1.008448360686 -0.0709902 0.00065892791064 1.2941000 66.8507 /T 113.1152 101.4/ 59.1768 n.a. n.a. 180.91656 95.232646 41.923986 >..... Daylight Cut-off Requested .....< 2026-Sep-04 02:10 C 16 47 44.90 +46 33 21.5 323.336787 78.580565 n.a. n.a. 1.008489106018 0.2299991 0.00088054858983 0.4297606 84.1674 /T 95.7830 107.3/ 52.7805 n.a. n.a. 59.523645 152.58695 34.146692 2026-Sep-04 02:20 C 16 48 11.29 +46 24 27.7 317.394403 77.470217 n.a. n.a. 1.008490030490 0.2309917 0.00088227271683 0.4299686 84.2523 /T 95.6979 107.4/ 52.6732 n.a. n.a. 60.368375 152.89484 33.733581 2026-Sep-04 02:30 N 16 48 37.73 +46 15 24.9 312.590796 76.216624 n.a. n.a. 1.008490958863 0.2319448 0.00088399774354 0.4302059 84.3379 /T 95.6122 107.6/ 52.5661 n.a. n.a. 61.225731 153.13871 33.324520 2026-Sep-04 02:40 N 16 49 04.27 +46 06 13.4 308.738886 74.854580 n.a. n.a. 1.008491890981 0.2328589 0.00088572375063 0.4304541 84.4245 /T 95.5255 107.7/ 52.4594 n.a. n.a. 62.093021 153.32141 32.919629 2026-Sep-04 02:50 N 16 49 30.98 +45 56 53.3 305.659794 73.410286 n.a. n.a. 1.008492826688 0.2337343 0.00088745074387 0.4306943 84.5121 /T 95.4378 107.8/ 52.3529 n.a. n.a. 62.967778 153.44581 32.518860 2026-Sep-04 03:00 A 16 49 57.89 +45 47 24.9 303.201339 71.903146 n.a. n.a. 1.008493765829 0.2345716 0.00088917865394 0.4309079 84.6010 /T 95.3488 108.0/ 52.2469 n.a. n.a. 63.847747 153.51481 32.122027 2026-Sep-04 03:10 A 16 50 25.05 +45 37 48.4 301.240767 70.347513 n.a. n.a. 1.008494708252 0.2353711 0.00089090733640 0.4310761 84.6912 /T 95.2585 108.1/ 52.1413 n.a. n.a. 64.730880 153.53126 31.728817 2026-Sep-04 03:20 A 16 50 52.52 +45 28 04.1 299.681396 68.754089 n.a. n.a. 1.008495653807 0.2361333 0.00089263657187 0.4311803 84.7830 /T 95.1666 108.2/ 52.0362 n.a. n.a. 65.615317 153.49798 31.338815 2026-Sep-04 03:30 A 16 51 20.34 +45 18 12.1 298.447747 67.130960 n.a. n.a. 1.008496602344 0.2368585 0.00089436606633 0.4312019 84.8764 /T 95.0731 108.4/ 51.9317 n.a. n.a. 66.499376 153.41773 30.951520 2026-Sep-04 03:40 16 51 48.55 +45 08 12.7 297.480925 65.484329 n.a. n.a. 1.008497553717 0.2375472 0.00089609545158 0.4311225 84.9716 /T 94.9777 108.5/ 51.8277 n.a. n.a. 67.381543 153.29321 30.566361 2026-Sep-04 03:50 16 52 17.19 +44 58 06.2 296.734801 63.819035 n.a. n.a. 1.008498507779 0.2381996 0.00089782428591 0.4309239 85.0688 /T 94.8805 108.7/ 51.7244 n.a. n.a. 68.260457 153.12704 30.182710 2026-Sep-04 04:00 16 52 46.30 +44 47 52.8 296.173026 62.138923 n.a. n.a. 1.008499464385 0.2388161 0.00089955205485 0.4305881 85.1680 /T 94.7811 108.8/ 51.6217 n.a. n.a. 69.134899 152.92174 29.799896 2026-Sep-04 04:10 16 53 15.93 +44 37 32.9 295.766751 60.447101 n.a. n.a. 1.008500423393 0.2393971 0.00090127817220 0.4300972 85.2694 /T 94.6796 109.0/ 51.5197 n.a. n.a. 70.003778 152.67977 29.417217 2026-Sep-04 04:20 16 53 46.10 +44 27 06.8 295.492903 58.746124 n.a. n.a. 1.008501384660 0.2399429 0.00090300198104 0.4294338 85.3731 /T 94.5759 109.1/ 51.4184 n.a. n.a. 70.866124 152.40350 29.033949 2026-Sep-04 04:30 16 54 16.85 +44 16 34.7 295.332895 57.038132 n.a. n.a. 1.008502348047 0.2404538 0.00090472275507 0.4285808 85.4792 /T 94.4697 109.3/ 51.3180 n.a. n.a. 71.721071 152.09520 28.649354 2026-Sep-04 04:40 16 54 48.21 +44 05 56.9 295.271640 55.324948 n.a. n.a. 1.008503313413 0.2409301 0.00090643969996 0.4275214 85.5878 /T 94.3610 109.4/ 51.2183 n.a. n.a. 72.567854 151.75706 28.262689 2026-Sep-04 04:50 16 55 20.20 +43 55 13.8 295.296814 53.608147 n.a. n.a. 1.008504280620 0.2413720 0.00090815195491 0.4262393 85.6990 /T 94.2497 109.6/ 51.1195 n.a. n.a. 73.405793 151.39118 27.873212 2026-Sep-04 05:00 16 55 52.87 +43 44 25.7 295.398288 51.889116 n.a. n.a. 1.008505249531 0.2417799 0.00090985859435 0.4247184 85.8129 /T 94.1357 109.7/ 51.0216 n.a. n.a. 74.234284 150.99959 27.480185 2026-Sep-04 05:10 16 56 26.22 +43 33 32.9 295.567690 50.169093 n.a. n.a. 1.008506220010 0.2421540 0.00091155862970 0.4229434 85.9295 /T 94.0189 109.9/ 50.9246 n.a. n.a. 75.052794 150.58422 27.082884 2026-Sep-04 05:20 16 57 00.28 +43 22 35.8 295.798067 48.449197 n.a. n.a. 1.008507191923 0.2424945 0.00091325101136 0.4208993 86.0491 /T 93.8992 110.0/ 50.8286 n.a. n.a. 75.860850 150.14693 26.680596 2026-Sep-04 05:30 16 57 35.08 +43 11 34.6 296.083621 46.730459 n.a. n.a. 1.008508165134 0.2428017 0.00091493463073 0.4185716 86.1716 /T 93.7767 110.2/ 50.7336 n.a. n.a. 76.658031 149.68950 26.272629 2026-Sep-04 05:40 m 16 58 10.63 +43 00 29.7 296.419505 45.013833 n.a. n.a. 1.008509139511 0.2430758 0.00091660832240 0.4159464 86.2970 /T 93.6511 110.3/ 50.6395 n.a. n.a. 77.443961 149.21365 25.858310 2026-Sep-04 05:50 m 16 58 46.94 +42 49 21.4 296.801651 43.300220 n.a. n.a. 1.008510114921 0.2433170 0.00091827086638 0.4130105 86.4255 /T 93.5225 110.5/ 50.5466 n.a. n.a. 78.218305 148.72101 25.436988 2026-Sep-04 06:00 m 16 59 24.04 +42 38 10.0 297.226648 41.590474 n.a. n.a. 1.008511091233 0.2435255 0.00091992099055 0.4097511 86.5572 /T 93.3907 110.7/ 50.4546 n.a. n.a. 78.980756 148.21315 25.008037 2026-Sep-04 06:10 m 17 00 01.94 +42 26 56.0 297.691626 39.885416 n.a. n.a. 1.008512068316 0.2437016 0.00092155737304 0.4061561 86.6920 /T 93.2558 110.8/ 50.3638 n.a. n.a. 79.731038 147.69156 24.570856 2026-Sep-04 06:20 m 17 00 40.63 +42 15 39.5 298.194181 38.185842 n.a. n.a. 1.008513046040 0.2438453 0.00092317864485 0.4022142 86.8300 /T 93.1177 111.0/ 50.2741 n.a. n.a. 80.468894 147.15769 24.124872 2026-Sep-04 06:30 m 17 01 20.15 +42 04 21.0 298.732298 36.492528 n.a. n.a. 1.008514024276 0.2439568 0.00092478339244 0.3979145 86.9712 /T 92.9764 111.1/ 50.1855 n.a. n.a. 81.194083 146.61291 23.669539 2026-Sep-04 06:40 m 17 02 00.48 +41 53 00.7 299.304296 34.806239 n.a. n.a. 1.008515002895 0.2440364 0.00092637016048 0.3932470 87.1157 /T 92.8318 111.3/ 50.0980 n.a. n.a. 81.906379 146.05854 23.204337 2026-Sep-04 06:50 m 17 02 41.64 +41 41 39.0 299.908784 33.127732 n.a. n.a. 1.008515981770 0.2440841 0.00092793745456 0.3882023 87.2635 /T 92.6839 111.4/ 50.0117 n.a. n.a. 82.605561 145.49583 22.728776 2026-Sep-04 07:00 m 17 03 23.63 +41 30 16.2 300.544618 31.457761 n.a. n.a. 1.008516960772 0.2441001 0.00092948374406 0.3827717 87.4147 /T 92.5327 111.6/ 49.9266 n.a. n.a. 83.291415 144.92600 22.242396 2026-Sep-04 07:10 m 17 04 06.44 +41 18 52.6 301.210872 29.797081 n.a. n.a. 1.008517939776 0.2440846 0.00093100746501 0.3769473 87.5691 /T 92.3782 111.8/ 49.8427 n.a. n.a. 83.963728 144.35019 21.744761 2026-Sep-04 07:20 m 17 04 50.09 +41 07 28.4 301.906808 28.146454 n.a. n.a. 1.008518918654 0.2440376 0.00093250702304 0.3707218 87.7268 /T 92.2203 111.9/ 49.7599 n.a. n.a. 84.622287 143.76950 21.235468 2026-Sep-04 07:30 m 17 05 34.57 +40 56 04.1 302.631856 26.506647 n.a. n.a. 1.008519897280 0.2439592 0.00093398079629 0.3640888 87.8879 /T 92.0592 112.1/ 49.6784 n.a. n.a. 85.266875 143.18499 20.714138 2026-Sep-04 07:40 m 17 06 19.87 +40 44 39.9 303.385592 24.878440 n.a. n.a. 1.008520875529 0.2438496 0.00093542713844 0.3570425 88.0523 /T 91.8947 112.2/ 49.5980 n.a. n.a. 85.897271 142.59766 20.180424 2026-Sep-04 07:50 m 17 07 05.98 +40 33 16.0 304.167723 23.262627 n.a. n.a. 1.008521853276 0.2437088 0.00093684438173 0.3495780 88.2200 /T 91.7269 112.4/ 49.5189 n.a. n.a. 86.513247 142.00846 19.634003 2026-Sep-04 08:00 m 17 07 52.92 +40 21 52.8 304.978071 21.660019 n.a. n.a. 1.008522830397 0.2435369 0.00093823083991 0.3416911 88.3909 /T 91.5559 112.5/ 49.4410 n.a. n.a. 87.114566 141.41830 19.074581 2026-Sep-04 08:10 m 17 08 40.65 +40 10 30.5 305.816562 20.071446 n.a. n.a. 1.008523806765 0.2433340 0.00093958481137 0.3333782 88.5652 /T 91.3815 112.7/ 49.3643 n.a. n.a. 87.700983 140.82807 18.501890 2026-Sep-04 08:20 m 17 09 29.19 +39 59 09.4 306.683216 18.497758 n.a. n.a. 1.008524782258 0.2431001 0.00094090458219 0.3246368 88.7426 /T 91.2040 112.8/ 49.2888 n.a. n.a. 88.272245 140.23859 17.915688 2026-Sep-04 08:30 m 17 10 18.51 +39 47 49.8 307.578131 16.939830 n.a. n.a. 1.008525756751 0.2428354 0.00094218842907 0.3154648 88.9233 /T 91.0233 113.0/ 49.2145 n.a. n.a. 88.828087 139.65064 17.315760 2026-Sep-04 08:40 m 17 11 08.60 +39 36 31.8 308.501484 15.398565 n.a. n.a. 1.008526730120 0.2425397 0.00094343462248 0.3058611 89.1071 /T 90.8393 113.1/ 49.1414 n.a. n.a. 89.368234 139.06498 16.701916 2026-Sep-04 08:50 m 17 11 59.46 +39 25 15.7 309.453514 13.874892 n.a. n.a. 1.008527702241 0.2422133 0.00094464142965 0.2958252 89.2941 /T 90.6523 113.3/ 49.0694 n.a. n.a. 89.892401 138.48233 16.073989 2026-Sep-04 09:00 m 17 12 51.06 +39 14 01.8 310.434518 12.369770 n.a. n.a. 1.008528672991 0.2418560 0.00094580711755 0.2853574 89.4841 /T 90.4622 113.4/ 48.9987 n.a. n.a. 90.400295 137.90337 15.431840 2026-Sep-04 09:10 m 17 13 43.39 +39 02 50.3 311.444843 10.884192 n.a. n.a. 1.008529642247 0.2414679 0.00094692995587 0.2744589 89.6772 /T 90.2691 113.6/ 48.9290 n.a. n.a. 90.891610 137.32874 14.775351 2026-Sep-04 09:20 m 17 14 36.44 +38 51 41.3 312.484880 9.419184 n.a. n.a. 1.008530609884 0.2410490 0.00094800822000 0.2631313 89.8732 /T 90.0730 113.7/ 48.8606 n.a. n.a. 91.366034 136.75906 14.104428 2026-Sep-04 09:30 m 17 15 30.19 +38 40 35.1 313.555054 7.975807 n.a. n.a. 1.008531575779 0.2405993 0.00094904019395 0.2513773 90.0721 /T 89.8740 113.9/ 48.7932 n.a. n.a. 91.823245 136.19491 13.419003 2026-Sep-04 09:40 m 17 16 24.62 +38 29 31.9 314.655820 6.555160 n.a. n.a. 1.008532539809 0.2401187 0.00095002417318 0.2391999 90.2739 /T 89.6722 114.0/ 48.7269 n.a. n.a. 92.262914 135.63686 12.719027 2026-Sep-04 09:50 m 17 17 19.71 +38 18 31.8 315.787653 5.158381 n.a. n.a. 1.008533501850 0.2396074 0.00095095846752 0.2266032 90.4784 /T 89.4676 114.2/ 48.6617 n.a. n.a. 92.684707 135.08542 12.004476 2026-Sep-04 10:00 m 17 18 15.45 +38 07 35.0 316.951041 3.786648 n.a. n.a. 1.008534461778 0.2390651 0.00095184140387 0.2135917 90.6857 /T 89.2603 114.3/ 48.5975 n.a. n.a. 93.088281 134.54109 11.275349 2026-Sep-04 10:10 m 17 19 11.80 +37 56 41.6 318.146478 2.441176 n.a. n.a. 1.008535419469 0.2384920 0.00095267132904 0.2001707 90.8956 /T 89.0503 114.4/ 48.5344 n.a. n.a. 93.473293 134.00436 10.531665 2026-Sep-04 10:20 m 17 20 08.76 +37 45 51.9 319.374455 1.123225 n.a. n.a. 1.008536374800 0.2378878 0.00095344661235 0.1863463 91.1081 /T 88.8378 114.6/ 48.4722 n.a. n.a. 93.839394 133.47569 9.7734650 2026-Sep-04 10:30 m 17 21 06.30 +37 35 06.0 320.635447 -0.165904 n.a. n.a. 1.008537327645 0.2372526 0.00095416564836 0.1721249 91.3230 /T 88.6228 114.7/ 48.4110 n.a. n.a. 94.186234 132.95549 9.0008138 >..... Elevation Cut-off Requested .....< >..... Daylight Cut-off Requested .....< $$EOE *************************************************************************************************************************************************************************************************************************************************** Column meaning: TIME Times PRIOR to 1962 are UT1, a mean-solar time closely related to the prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1 using integer leap-seconds for 1972 and later years. Conversion from the internal Barycentric Dynamical Time (TDB) of solar system dynamics to the non-uniform civil UT time-scale requested for output has not been determined for UTC times after the next July or January 1st. Therefore, the last known leap-second is used as a constant over future intervals. Time tags refer to the UT time-scale conversion from TDB on Earth regardless of observer location within the solar system, although clock rates may differ due to the local gravity field and no analog to "UT" may be defined for that location. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. CALENDAR SYSTEM Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15 (if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any) are in the Julian calendar system, which is automatically extended for dates prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for matching historical dates. The Gregorian calendar more accurately corresponds to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is available if such physical events are the primary interest. NOTE: "n.a." in output means quantity "not available" at the print-time. SOLAR PRESENCE (OBSERVING SITE) Time tag is followed by a blank, then a solar-presence condition code: '*' Daylight (refracted solar upper-limb on or above apparent horizon) 'C' Civil twilight/dawn 'N' Nautical twilight/dawn 'A' Astronomical twilight/dawn ' ' Night OR geocentric ephemeris LUNAR PRESENCE WITH TARGET RISE/TRANSIT/SET EVENT MARKER (OBSERVING SITE) The solar-presence code column is immediately followed by another marker: 'm' Refracted upper-limb of Moon on or above apparent horizon ' ' Refracted upper-limb of Moon below apparent horizon OR geocentric The lunar presence marker (an ongoing state) can be over-ridden by a target event marker if an event has occurred since the last output step: 'r' Rise (target body on or went above cut-off RTS elevation) 'e' Elevation max (target body maximum elevation angle has occurred) 't' Transit (target body at or passed through observer meridian) 's' Set (target body on or went below cut-off RTS elevation) RTS MARKERS (TVH) Rise and set are with respect to the reference ellipsoid true visual horizon defined by the elevation cut-off angle. Horizon dip and yellow-light refraction (Earth only) are considered. Accuracy is < or = to twice the requested search step-size. 'R.A._____(ICRF)_____DEC' = Astrometric right ascension and declination of the target center with respect to the observing site (coordinate origin) in the reference frame of the planetary ephemeris (ICRF). Compensated for down-leg light-time delay aberration. Units: RA in hours-minutes-seconds of time, HH MM SS.ff{ffff} DEC in degrees-minutes-seconds of arc, sDD MN SC.f{ffff} 'Azi____(a-app)___Elev' = Airless apparent azimuth and elevation of target center. Compensated for light-time, the gravitational deflection of light, stellar aberration, precession and nutation. Azimuth is measured clockwise from north: North(0) -> East(90) -> South(180) -> West(270) -> North (360) Elevation angle is with respect to a plane perpendicular to the reference surface local zenith direction. TOPOCENTRIC ONLY. Units: DEGREES 'APmag S-brt' = The targets' approximate apparent visual magnitude and surface brightness. For planets and natural satellites, output is restricted to solar phase angles covered by observational data. Outside the observed phase angle range, "n.a." may be output to avoid extrapolation beyond the limit of model validity. For Earth-based observers, the estimated dimming due to atmospheric absorption (extinction) is available as a separate, requestable quantity. Surface brightness is the average airless visual magnitude of a square-arcsecond of the illuminated portion of the apparent disk. It is computed only if the target radius is known. Units: MAGNITUDES & MAGNITUDES PER SQUARE ARCSECOND 'r rdot' = The Sun's apparent range ("r", light-time aberrated) and range-rate ("rdot") relative to the target center, as seen by the observer. A positive "rdot" means the target center was moving away from the Sun, negative means moving toward the Sun. Units: AU and KM/S 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. Units: AU and KM/S 'S-O-T /r' = Sun-Observer-Target apparent SOLAR ELONGATION ANGLE seen from the observers' location at print-time. The '/r' column provides a code indicating the targets' apparent position relative to the Sun in the observers' sky, as described below: Case A: For an observing location on the surface of a rotating body, that body rotational sense is considered: /T indicates target TRAILS Sun (evening sky: rises and sets AFTER Sun) /L indicates target LEADS Sun (morning sky: rises and sets BEFORE Sun) Case B: For an observing point that does not have a rotational model (such as a spacecraft), the "leading" and "trailing" condition is defined by the observers' heliocentric ORBITAL motion: * If continuing in the observers' current direction of heliocentric motion would encounter the targets' apparent longitude first, followed by the Sun's, the target LEADS the Sun as seen by the observer. * If the Sun's apparent longitude would be encountered first, followed by the targets', the target TRAILS the Sun. Two other codes can be output: /* indicates observer is Sun-centered (undefined) /? Target is aligned with Sun center (no lead or trail) The S-O-T solar elongation angle is numerically the minimum separation angle of the Sun and target in the sky in any direction. It does NOT indicate the amount of separation in the leading or trailing directions, which would be defined along the equator of a spherical coordinate system. Units: DEGREES 'S-T-O' = The Sun-Target-Observer angle; the interior vertex angle at target center formed by a vector from the target to the apparent center of the Sun (at reflection time on the target) and the apparent vector from target to the observer at print-time. Slightly different from true PHASE ANGLE (requestable separately) at the few arcsecond level in that it includes stellar aberration on the down-leg from target to observer. Units: DEGREES 'T-O-M/MN_Illu%' = Target-Observer-Moon LUNAR ELONGATION angle and illuminated percentage. The apparent lunar elongation angle between target body center and Moon center, seen from the observing site, along with fraction of the lunar disk illuminated by the Sun. A negative lunar elongation angle indicates the target center is behind the Moon. Units: DEGREES & PERCENT 'RA_3sigma DEC_3sigma' = Uncertainty in Right-Ascension and Declination. Output values are the formal +/- 3 standard-deviations (sigmas) around nominal position. Units: ARCSECONDS 'Sky_motion Sky_mot_PA RelVel-ANG' = Total apparent angular rate of the target in the plane-of-sky. "Sky_mot_PA" is the position angle of the target's direction of motion in the plane-of-sky, measured counter-clockwise from the apparent of-date north pole direction. "RelVel-ANG" is the flight path angle of the target's relative motion with respect to the observer's line-of-sight, in the range [-90,+90], where positive values indicate motion away from the observer, negative values are toward the observer: -90 = target is moving directly toward the observer 0 = target is moving at right angles to the observer's line-of-sight +90 = target is moving directly away from the observer UNITS: ARCSECONDS/MINUTE, DEGREES, DEGREES Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA General site: https://ssd.jpl.nasa.gov/ Mailing list: https://ssd.jpl.nasa.gov/email_list.html System news : https://ssd.jpl.nasa.gov/horizons/news.html User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x API https://ssd-api.jpl.nasa.gov/doc/horizons.html command-line telnet ssd.jpl.nasa.gov 6775 e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Inquiries : Jon.D.Giorgini@jpl.nasa.gov ***************************************************************************************************************************************************************************************************************************************************