******************************************************************************* JPL/HORIZONS (2023 DZ2) 2024-May-04 09:27:04 Rec #:50654041 (+COV) Soln.date: 2023-Nov-27_08:32:39 # obs: 643 (72 days) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460023.5 ! 2023-Mar-20.00 (TDB) Residual RMS= .15616 EC= .5397615362638187 QR= .993845040789782 TP= 2460036.8616714543 OM= 187.8839082141277 W= 5.990171732774039 IN= .08157304056690141 A= 2.159413258774207 MA= 355.849874621235 ADIST= 3.324981476758632 PER= 3.17331 N= .310599268 ANGMOM= .021279799 DAN= .99575 DDN= 3.30382 L= 193.8740739 B= .008512799999999999 MOID= 6.897E-5 TP= 2023-Apr-02.3616714543 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.27 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#26, OCC=1 radar( 4 delay, 1 Dop.) 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat May 4 09:27:04 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2023 DZ2) {source: JPL#26} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2023-Mar-18 00:00:00.0000 UT Stop time : A.D. 2023-Mar-28 00:00:00.0000 UT Step-size : 120 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -6378.137 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {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 : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441} Rel. light bend : Sun {source: DE441} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Small-body perts: Yes {source: SB441-N16} Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian EOP file : eop.240503.p240727 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-03. PREDICTS-> 2024-JUL-26 Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO ) Table cut-offs 2: Solar elongation ( 0.0,180.0=NO ),Local Hour Angle( 0.0=NO ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2460023.5 ! 2023-Mar-20.00 (TDB) Residual RMS= .15616 EC= .5397615362638187 QR= .993845040789782 TP= 2460036.8616714543 OM= 187.8839082141277 W= 5.990171732774039 IN= .08157304056690141 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.007182372404682E+00 Y= 3.984840181053018E-02 Z= 1.699542936794407E-02 VX= 1.202244981603124E-03 VY=-1.944400444405408E-02 VZ=-8.397196349846590E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.27 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. **************************************************************************************************************** Date__(UT)__HR:MN R.A._____(ICRF)_____DEC APmag S-brt delta deldot S-O-T /r Cnst **************************************************************************************************************** $$SOE 2023-Mar-18 00:00 07 56 20.31 +20 11 42.6 19.041 n.a. 0.03394753343346 -7.4726119 120.3448 /T Gem 2023-Mar-18 02:00 07 56 24.37 +20 11 25.1 19.020 n.a. 0.03358784234991 -7.4726888 120.2783 /T Gem 2023-Mar-18 04:00 07 56 28.56 +20 11 07.1 18.999 n.a. 0.03322814749516 -7.4727677 120.2124 /T Gem 2023-Mar-18 06:00 07 56 32.88 +20 10 48.5 18.977 n.a. 0.03286844877555 -7.4728485 120.1470 /T Gem 2023-Mar-18 08:00 07 56 37.34 +20 10 29.5 18.955 n.a. 0.03250874610155 -7.4729312 120.0822 /T Gem 2023-Mar-18 10:00 07 56 41.94 +20 10 09.9 18.933 n.a. 0.03214903938785 -7.4730155 120.0179 /T Gem 2023-Mar-18 12:00 07 56 46.68 +20 09 49.8 18.910 n.a. 0.03178932855374 -7.4731015 119.9542 /T Gem 2023-Mar-18 14:00 07 56 51.57 +20 09 29.1 18.887 n.a. 0.03142961352323 -7.4731890 119.8911 /T Gem 2023-Mar-18 16:00 07 56 56.61 +20 09 07.8 18.864 n.a. 0.03106989422545 -7.4732780 119.8287 /T Gem 2023-Mar-18 18:00 07 57 01.82 +20 08 45.9 18.841 n.a. 0.03071017059489 -7.4733682 119.7669 /T Gem 2023-Mar-18 20:00 07 57 07.18 +20 08 23.3 18.817 n.a. 0.03035044257180 -7.4734597 119.7057 /T Gem 2023-Mar-18 22:00 07 57 12.72 +20 08 00.1 18.793 n.a. 0.02999071010255 -7.4735522 119.6453 /T Gem 2023-Mar-19 00:00 07 57 18.43 +20 07 36.3 18.769 n.a. 0.02963097314004 -7.4736456 119.5856 /T Gem 2023-Mar-19 02:00 07 57 24.32 +20 07 11.7 18.744 n.a. 0.02927123164417 -7.4737397 119.5266 /T Gem 2023-Mar-19 04:00 07 57 30.40 +20 06 46.4 18.719 n.a. 0.02891148558238 -7.4738345 119.4683 /T Gem 2023-Mar-19 06:00 07 57 36.67 +20 06 20.3 18.694 n.a. 0.02855173493007 -7.4739297 119.4109 /T Gem 2023-Mar-19 08:00 07 57 43.15 +20 05 53.5 18.668 n.a. 0.02819197967133 -7.4740251 119.3543 /T Gem 2023-Mar-19 10:00 07 57 49.83 +20 05 25.8 18.642 n.a. 0.02783221979954 -7.4741206 119.2985 /T Gem 2023-Mar-19 12:00 07 57 56.73 +20 04 57.3 18.615 n.a. 0.02747245531803 -7.4742159 119.2436 /T Gem 2023-Mar-19 14:00 07 58 03.85 +20 04 28.0 18.588 n.a. 0.02711268624088 -7.4743108 119.1896 /T Gem 2023-Mar-19 16:00 07 58 11.21 +20 03 57.7 18.561 n.a. 0.02675291259381 -7.4744051 119.1366 /T Gem 2023-Mar-19 18:00 07 58 18.81 +20 03 26.4 18.533 n.a. 0.02639313441497 -7.4744984 119.0846 /T Gem 2023-Mar-19 20:00 07 58 26.66 +20 02 54.2 18.505 n.a. 0.02603335175607 -7.4745905 119.0335 /T Gem 2023-Mar-19 22:00 07 58 34.77 +20 02 20.9 18.476 n.a. 0.02567356468331 -7.4746811 118.9836 /T Gem 2023-Mar-20 00:00 07 58 43.16 +20 01 46.6 18.447 n.a. 0.02531377327873 -7.4747698 118.9347 /T Gem 2023-Mar-20 02:00 07 58 51.82 +20 01 11.1 18.418 n.a. 0.02495397764134 -7.4748563 118.8871 /T Gem 2023-Mar-20 04:00 07 59 00.79 +20 00 34.4 18.388 n.a. 0.02459417788863 -7.4749402 118.8406 /T Gem 2023-Mar-20 06:00 07 59 10.06 +19 59 56.6 18.357 n.a. 0.02423437415807 -7.4750210 118.7953 /T Gem 2023-Mar-20 08:00 07 59 19.65 +19 59 17.4 18.326 n.a. 0.02387456660876 -7.4750982 118.7514 /T Gem 2023-Mar-20 10:00 07 59 29.58 +19 58 36.9 18.295 n.a. 0.02351475542335 -7.4751714 118.7089 /T Gem 2023-Mar-20 12:00 07 59 39.86 +19 57 55.0 18.262 n.a. 0.02315494081001 -7.4752400 118.6678 /T Gem 2023-Mar-20 14:00 07 59 50.51 +19 57 11.6 18.230 n.a. 0.02279512300464 -7.4753035 118.6282 /T Gem 2023-Mar-20 16:00 08 00 01.54 +19 56 26.6 18.196 n.a. 0.02243530227332 -7.4753610 118.5901 /T Gem 2023-Mar-20 18:00 08 00 12.97 +19 55 40.1 18.163 n.a. 0.02207547891506 -7.4754120 118.5537 /T Gem 2023-Mar-20 20:00 08 00 24.83 +19 54 51.8 18.128 n.a. 0.02171565326462 -7.4754557 118.5190 /T Cnc 2023-Mar-20 22:00 08 00 37.12 +19 54 01.7 18.093 n.a. 0.02135582569594 -7.4754912 118.4861 /T Cnc 2023-Mar-21 00:00 08 00 49.88 +19 53 09.8 18.057 n.a. 0.02099599662567 -7.4755175 118.4551 /T Cnc 2023-Mar-21 02:00 08 01 03.13 +19 52 15.9 18.021 n.a. 0.02063616651717 -7.4755338 118.4261 /T Cnc 2023-Mar-21 04:00 08 01 16.89 +19 51 19.8 17.983 n.a. 0.02027633588499 -7.4755388 118.3992 /T Cnc 2023-Mar-21 06:00 08 01 31.19 +19 50 21.6 17.945 n.a. 0.01991650529987 -7.4755313 118.3745 /T Cnc 2023-Mar-21 08:00 08 01 46.06 +19 49 21.0 17.907 n.a. 0.01955667539415 -7.4755100 118.3521 /T Cnc 2023-Mar-21 10:00 08 02 01.53 +19 48 17.9 17.867 n.a. 0.01919684686799 -7.4754735 118.3322 /T Cnc 2023-Mar-21 12:00 08 02 17.63 +19 47 12.2 17.827 n.a. 0.01883702049630 -7.4754200 118.3149 /T Cnc 2023-Mar-21 14:00 08 02 34.40 +19 46 03.8 17.786 n.a. 0.01847719713633 -7.4753479 118.3003 /T Cnc 2023-Mar-21 16:00 08 02 51.88 +19 44 52.4 17.743 n.a. 0.01811737773651 -7.4752550 118.2886 /T Cnc 2023-Mar-21 18:00 08 03 10.11 +19 43 37.8 17.700 n.a. 0.01775756334612 -7.4751393 118.2800 /T Cnc 2023-Mar-21 20:00 08 03 29.14 +19 42 20.0 17.656 n.a. 0.01739775512633 -7.4749981 118.2746 /T Cnc 2023-Mar-21 22:00 08 03 49.01 +19 40 58.6 17.611 n.a. 0.01703795436270 -7.4748290 118.2727 /T Cnc 2023-Mar-22 00:00 08 04 09.79 +19 39 33.3 17.565 n.a. 0.01667816247938 -7.4746287 118.2745 /T Cnc 2023-Mar-22 02:00 08 04 31.52 +19 38 04.1 17.518 n.a. 0.01631838105512 -7.4743939 118.2802 /T Cnc 2023-Mar-22 04:00 08 04 54.27 +19 36 30.5 17.469 n.a. 0.01595861184171 -7.4741208 118.2901 /T Cnc 2023-Mar-22 06:00 08 05 18.11 +19 34 52.3 17.419 n.a. 0.01559885678500 -7.4738051 118.3045 /T Cnc 2023-Mar-22 08:00 08 05 43.11 +19 33 09.1 17.368 n.a. 0.01523911804893 -7.4734421 118.3237 /T Cnc 2023-Mar-22 10:00 08 06 09.37 +19 31 20.5 17.316 n.a. 0.01487939804330 -7.4730262 118.3480 /T Cnc 2023-Mar-22 12:00 08 06 36.97 +19 29 26.2 17.262 n.a. 0.01451969945577 -7.4725515 118.3778 /T Cnc 2023-Mar-22 14:00 08 07 06.00 +19 27 25.6 17.207 n.a. 0.01416002528888 -7.4720108 118.4135 /T Cnc 2023-Mar-22 16:00 08 07 36.59 +19 25 18.3 17.150 n.a. 0.01380037890316 -7.4713963 118.4556 /T Cnc 2023-Mar-22 18:00 08 08 08.85 +19 23 03.7 17.091 n.a. 0.01344076406730 -7.4706989 118.5046 /T Cnc 2023-Mar-22 20:00 08 08 42.92 +19 20 41.1 17.031 n.a. 0.01308118501697 -7.4699083 118.5610 /T Cnc 2023-Mar-22 22:00 08 09 18.94 +19 18 10.0 16.969 n.a. 0.01272164652390 -7.4690125 118.6256 /T Cnc 2023-Mar-23 00:00 08 09 57.10 +19 15 29.3 16.905 n.a. 0.01236215397738 -7.4679977 118.6989 /T Cnc 2023-Mar-23 02:00 08 10 37.57 +19 12 38.4 16.838 n.a. 0.01200271348099 -7.4668480 118.7817 /T Cnc 2023-Mar-23 04:00 08 11 20.57 +19 09 36.2 16.770 n.a. 0.01164333196764 -7.4655448 118.8750 /T Cnc 2023-Mar-23 06:00 08 12 06.33 +19 06 21.5 16.699 n.a. 0.01128401733733 -7.4640665 118.9798 /T Cnc 2023-Mar-23 08:00 08 12 55.12 +19 02 53.1 16.625 n.a. 0.01092477862281 -7.4623874 119.0971 /T Cnc 2023-Mar-23 10:00 08 13 47.24 +18 59 09.4 16.549 n.a. 0.01056562619000 -7.4604777 119.2282 /T Cnc 2023-Mar-23 12:00 08 14 43.05 +18 55 08.9 16.470 n.a. 0.01020657198161 -7.4583017 119.3746 /T Cnc 2023-Mar-23 14:00 08 15 42.93 +18 50 49.4 16.388 n.a. 0.00984762981561 -7.4558168 119.5379 /T Cnc 2023-Mar-23 16:00 08 16 47.34 +18 46 08.9 16.302 n.a. 0.00948881575258 -7.4529721 119.7200 /T Cnc 2023-Mar-23 18:00 08 17 56.81 +18 41 04.5 16.213 n.a. 0.00913014855174 -7.4497061 119.9232 /T Cnc 2023-Mar-23 20:00 08 19 11.93 +18 35 33.3 16.119 n.a. 0.00877165024079 -7.4459440 120.1500 /T Cnc 2023-Mar-23 22:00 08 20 33.42 +18 29 31.6 16.022 n.a. 0.00841334683389 -7.4415943 120.4035 /T Cnc 2023-Mar-24 00:00 08 22 02.11 +18 22 55.0 15.919 n.a. 0.00805526924417 -7.4365442 120.6870 /T Cnc 2023-Mar-24 02:00 08 23 38.98 +18 15 38.4 15.811 n.a. 0.00769745445409 -7.4306532 121.0049 /T Cnc 2023-Mar-24 04:00 08 25 25.19 +18 07 35.6 15.698 n.a. 0.00733994703176 -7.4237450 121.3620 /T Cnc 2023-Mar-24 06:00 08 27 22.16 +17 58 38.9 15.578 n.a. 0.00698280111675 -7.4155961 121.7644 /T Cnc 2023-Mar-24 08:00 08 29 31.55 +17 48 39.1 15.451 n.a. 0.00662608305163 -7.4059201 122.2194 /T Cnc 2023-Mar-24 10:00 08 31 55.44 +17 37 24.5 15.317 n.a. 0.00626987491396 -7.3943453 122.7357 /T Cnc 2023-Mar-24 12:00 08 34 36.37 +17 24 40.9 15.173 n.a. 0.00591427932345 -7.3803838 123.3243 /T Cnc 2023-Mar-24 14:00 08 37 37.47 +17 10 09.7 15.019 n.a. 0.00555942608556 -7.3633851 123.9990 /T Cnc 2023-Mar-24 16:00 08 41 02.74 +16 53 27.4 14.854 n.a. 0.00520548152818 -7.3424687 124.7771 /T Cnc 2023-Mar-24 18:00 08 44 57.22 +16 34 03.3 14.676 n.a. 0.00485266186751 -7.3164216 125.6807 /T Cnc 2023-Mar-24 20:00 08 49 27.49 +16 11 16.3 14.483 n.a. 0.00450125273495 -7.2835406 126.7389 /T Cnc 2023-Mar-24 22:00 08 54 42.15 +15 44 11.2 14.272 n.a. 0.00415163835271 -7.2413808 127.9900 /T Cnc 2023-Mar-25 00:00 09 00 52.73 +15 11 31.9 14.041 n.a. 0.00380434621805 -7.1863486 129.4854 /T Cnc 2023-Mar-25 02:00 09 08 14.94 +14 31 31.0 13.784 n.a. 0.00346011742481 -7.1130175 131.2963 /T Cnc 2023-Mar-25 04:00 09 17 10.65 +13 41 33.4 13.498 n.a. 0.00312002064521 -7.0129486 133.5224 /T Cnc 2023-Mar-25 06:00 09 28 10.93 +12 37 50.2 13.174 n.a. 0.00278564274388 -6.8725911 136.3071 /T Leo 2023-Mar-25 08:00 09 42 00.94 +11 14 34.9 12.805 n.a. 0.00245941767053 -6.6694545 139.8609 /T Leo 2023-Mar-25 10:00 09 59 47.39 +09 22 55.5 12.379 n.a. 0.00214520939024 -6.3650586 144.4975 /T Leo 2023-Mar-25 12:00 10 23 09.39 +06 49 19.3 11.881 n.a. 0.00184935683278 -5.8923734 150.6828 /T Leo 2023-Mar-25 14:00 10 54 30.04 +03 14 23.7 11.292 n.a. 0.00158248518295 -5.1369153 159.0627 /T Leo 2023-Mar-25 16:00 11 36 52.70 -01 43 18.5 10.578 n.a. 0.00136215418760 -3.9264991 170.1740 /T Leo 2023-Mar-25 18:00 12 32 47.50 -08 06 08.4 10.229 n.a. 0.00121448244596 -2.1039684 172.4944 /L Vir 2023-Mar-25 20:00 13 40 33.70 -14 55 36.4 10.740 n.a. 0.00116782203361 0.2108926 155.5292 /L Vir 2023-Mar-25 22:00 14 51 05.37 -20 21 43.6 11.355 n.a. 0.00123383179720 2.4694034 138.1278 /L Lib 2023-Mar-26 00:00 15 53 00.53 -23 28 57.6 12.032 n.a. 0.00139642751072 4.1805218 123.5913 /L Sco 2023-Mar-26 02:00 16 41 17.51 -24 48 06.3 12.692 n.a. 0.00162655441555 5.2969627 112.6217 /L Oph 2023-Mar-26 04:00 17 17 08.39 -25 08 51.1 13.289 n.a. 0.00189950264677 5.9918191 104.5984 /L Oph 2023-Mar-26 06:00 17 43 39.66 -25 03 22.2 13.813 n.a. 0.00219913858026 6.4283542 98.6934 /L Oph 2023-Mar-26 08:00 18 03 36.53 -24 47 34.4 14.271 n.a. 0.00251576785753 6.7112389 94.2583 /L Sgr 2023-Mar-26 10:00 18 18 57.35 -24 28 35.5 14.671 n.a. 0.00284359435727 6.9012548 90.8485 /L Sgr 2023-Mar-26 12:00 18 31 02.16 -24 09 28.4 15.023 n.a. 0.00317906600954 7.0333469 88.1680 /L Sgr 2023-Mar-26 14:00 18 40 44.75 -23 51 26.2 15.336 n.a. 0.00351993161547 7.1280390 86.0189 /L Sgr 2023-Mar-26 16:00 18 48 41.80 -23 34 53.9 15.616 n.a. 0.00386471472081 7.1977686 84.2658 /L Sgr 2023-Mar-26 18:00 18 55 18.80 -23 19 55.2 15.868 n.a. 0.00421241557450 7.2503260 82.8147 /L Sgr 2023-Mar-26 20:00 19 00 53.88 -23 06 25.2 16.097 n.a. 0.00456233747082 7.2907476 81.5982 /L Sgr 2023-Mar-26 22:00 19 05 40.19 -22 54 15.8 16.306 n.a. 0.00491398232895 7.3223853 80.5672 /L Sgr 2023-Mar-27 00:00 19 09 47.48 -22 43 18.2 16.499 n.a. 0.00526698592581 7.3475295 79.6852 /L Sgr 2023-Mar-27 02:00 19 13 23.12 -22 33 23.9 16.676 n.a. 0.00562107653672 7.3677821 78.9245 /L Sgr 2023-Mar-27 04:00 19 16 32.73 -22 24 25.3 16.841 n.a. 0.00597604780772 7.3842882 78.2639 /L Sgr 2023-Mar-27 06:00 19 19 20.72 -22 16 15.6 16.994 n.a. 0.00633174052397 7.3978813 77.6867 /L Sgr 2023-Mar-27 08:00 19 21 50.56 -22 08 48.9 17.138 n.a. 0.00668803008361 7.4091790 77.1798 /L Sgr 2023-Mar-27 10:00 19 24 05.00 -22 02 00.1 17.273 n.a. 0.00704481771757 7.4186460 76.7324 /L Sgr 2023-Mar-27 12:00 19 26 06.30 -21 55 44.9 17.399 n.a. 0.00740202422256 7.4266366 76.3362 /L Sgr 2023-Mar-27 14:00 19 27 56.28 -21 49 59.5 17.519 n.a. 0.00775958541353 7.4334247 75.9840 /L Sgr 2023-Mar-27 16:00 19 29 36.44 -21 44 40.5 17.632 n.a. 0.00811744877367 7.4392244 75.6701 /L Sgr 2023-Mar-27 18:00 19 31 08.05 -21 39 45.1 17.740 n.a. 0.00847557095270 7.4442045 75.3896 /L Sgr 2023-Mar-27 20:00 19 32 32.15 -21 35 11.0 17.842 n.a. 0.00883391587478 7.4485000 75.1386 /L Sgr 2023-Mar-27 22:00 19 33 49.62 -21 30 55.8 17.939 n.a. 0.00919245329094 7.4522192 74.9134 /L Sgr 2023-Mar-28 00:00 19 35 01.22 -21 26 57.9 18.031 n.a. 0.00955115765966 7.4554503 74.7114 /L Sgr $$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. '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} 'APmag S-brt' = The asteroids' approximate apparent airless visual magnitude and surface brightness using the standard IAU H-G system magnitude model: APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi_1 + G*phi_2) For solar phase angles >90 deg, the error could exceed 1 magnitude. For phase angles >120 degrees, output values are rounded to the nearest integer to indicate error could be large and unknown. 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 '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 'Cnst' = Constellation ID; the 3-letter abbreviation for the name of the constellation containing the target centers' astrometric position, as defined by IAU (1930) boundary delineation. See documentation for list of abbreviations. 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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov **************************************************************************************************************** !$$SOF COMMAND = '2023 DZ2' START_TIME = '2023-03-18' STOP_TIME = '2023-03-28' STEP_SIZE = '2 hour' QUANTITIES = '1,9,20,23,29'