******************************************************************************* JPL/HORIZONS 20 Massalia (A852 SA) 2024-Apr-30 12:29:34 Rec #: 20 (+COV) Soln.date: 2024-Feb-20_20:17:29 # obs: 10030 (1856-2023) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458004.5 ! 2017-Sep-08.00 (TDB) Residual RMS= .24538 EC= .1423631626663732 QR= 2.066193929267254 TP= 2458153.2724856539 OM= 206.1028408790725 W= 256.5737636481198 IN= .7086185135809573 A= 2.409171154181067 MA= 320.7874386491996 ADIST= 2.75214837909488 PER= 3.73947 N= .263574015 ANGMOM= .026428291 DAN= 2.44103 DDN= 2.28482 L= 102.6756148 B= -.6892508000000001 MOID= 1.08406997 TP= 2018-Feb-03.7724856539 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= 67.84 ROTPER= 8.098 H= 6.54 G= .250 B-V= .854 ALBEDO= .241 STYP= S ASTEROID comments: 1: soln ref.= JPL#131, OCC=0 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Tue Apr 30 12:29:34 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 20 Massalia (A852 SA) {source: JPL#131} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2023-Jun-01 00:00:00.0000 UT Stop time : A.D. 2023-Jun-25 00:00:00.0000 UT Step-size : 360 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 67.84 km 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.240429.p240723 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-29. PREDICTS-> 2024-JUL-22 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= 2458004.5 ! 2017-Sep-08.00 (TDB) Residual RMS= .24538 EC= .1423631626663732 QR= 2.066193929267254 TP= 2458153.2724856539 OM= 206.1028408790725 W= 256.5737636481198 IN= .7086185135809573 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.345774050381684E+00 Y= 1.562344039223888E+00 Z= 6.647872958319574E-01 VX=-1.032969852582611E-02 VY= 6.110860939656579E-03 VZ= 2.508163474701515E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= 67.84 ROTPER= 8.098 H= 6.54 G= .250 B-V= .854 ALBEDO= .241 STYP= S ******************************************************************************************************************************************* Date__(UT)__HR:MN APmag S-brt r rdot delta deldot S-O-T /r Cnst RNG_3sigma RNGRT_3sig ******************************************************************************************************************************************* $$SOE 2023-Jun-01 00:00 10.360 5.252 2.720882491493 1.0362046 1.73989416662604 -6.4964544 161.6095 /L Sgr 3.3963 0.0000004 2023-Jun-01 06:00 10.355 5.248 2.721031943069 1.0339023 1.73896420052300 -6.3852046 161.9021 /L Sgr 3.3930 0.0000004 2023-Jun-01 12:00 10.350 5.244 2.721181062122 1.0315995 1.73805031409841 -6.2737212 162.1948 /L Sgr 3.3897 0.0000004 2023-Jun-01 18:00 10.344 5.240 2.721329848570 1.0292961 1.73715254086486 -6.1620072 162.4878 /L Sgr 3.3866 0.0000004 2023-Jun-02 00:00 10.339 5.236 2.721478302329 1.0269921 1.73627091390305 -6.0500656 162.7809 /L Sgr 3.3835 0.0000004 2023-Jun-02 06:00 10.334 5.231 2.721626423316 1.0246875 1.73540546588602 -5.9378990 163.0742 /L Sgr 3.3806 0.0000004 2023-Jun-02 12:00 10.328 5.227 2.721774211449 1.0223823 1.73455622910482 -5.8255101 163.3677 /L Sgr 3.3777 0.0000004 2023-Jun-02 18:00 10.323 5.223 2.721921666646 1.0200766 1.73372323549536 -5.7129012 163.6614 /L Sgr 3.3749 0.0000004 2023-Jun-03 00:00 10.318 5.219 2.722068788824 1.0177703 1.73290651666619 -5.6000744 163.9552 /L Sgr 3.3722 0.0000004 2023-Jun-03 06:00 10.312 5.214 2.722215577902 1.0154635 1.73210610392660 -5.4870319 164.2492 /L Sgr 3.3696 0.0000004 2023-Jun-03 12:00 10.307 5.210 2.722362033798 1.0131561 1.73132202831491 -5.3737752 164.5434 /L Sgr 3.3672 0.0000004 2023-Jun-03 18:00 10.301 5.205 2.722508156431 1.0108481 1.73055432062623 -5.2603061 164.8377 /L Sgr 3.3647 0.0000004 2023-Jun-04 00:00 10.296 5.201 2.722653945720 1.0085396 1.72980301143937 -5.1466259 165.1322 /L Sgr 3.3624 0.0000004 2023-Jun-04 06:00 10.290 5.196 2.722799401583 1.0062304 1.72906813114229 -5.0327358 165.4268 /L Sgr 3.3602 0.0000004 2023-Jun-04 12:00 10.285 5.192 2.722944523941 1.0039208 1.72834970995555 -4.9186370 165.7216 /L Sgr 3.3581 0.0000004 2023-Jun-04 18:00 10.279 5.187 2.723089312712 1.0016106 1.72764777795334 -4.8043304 166.0165 /L Sgr 3.3561 0.0000004 2023-Jun-05 00:00 10.273 5.183 2.723233767816 0.9992998 1.72696236508147 -4.6898169 166.3115 /L Sgr 3.3542 0.0000004 2023-Jun-05 06:00 10.268 5.178 2.723377889173 0.9969885 1.72629350117197 -4.5750971 166.6067 /L Sgr 3.3524 0.0000004 2023-Jun-05 12:00 10.262 5.173 2.723521676703 0.9946766 1.72564121595388 -4.4601718 166.9020 /L Sgr 3.3507 0.0000004 2023-Jun-05 18:00 10.256 5.168 2.723665130327 0.9923641 1.72500553905989 -4.3450416 167.1974 /L Sgr 3.3491 0.0000004 2023-Jun-06 00:00 10.251 5.163 2.723808249965 0.9900511 1.72438650002855 -4.2297071 167.4930 /L Sgr 3.3476 0.0000004 2023-Jun-06 06:00 10.245 5.159 2.723951035539 0.9877376 1.72378412830203 -4.1141692 167.7886 /L Sgr 3.3462 0.0000004 2023-Jun-06 12:00 10.239 5.154 2.724093486969 0.9854235 1.72319845321920 -3.9984284 168.0844 /L Sgr 3.3449 0.0000004 2023-Jun-06 18:00 10.233 5.149 2.724235604176 0.9831089 1.72262950400422 -3.8824857 168.3802 /L Sgr 3.3437 0.0000004 2023-Jun-07 00:00 10.227 5.143 2.724377387082 0.9807937 1.72207730975066 -3.7663420 168.6761 /L Sgr 3.3426 0.0000004 2023-Jun-07 06:00 10.221 5.138 2.724518835609 0.9784780 1.72154189940138 -3.6499985 168.9721 /L Sgr 3.3416 0.0000004 2023-Jun-07 12:00 10.216 5.133 2.724659949679 0.9761618 1.72102330172460 -3.5334564 169.2682 /L Sgr 3.3407 0.0000004 2023-Jun-07 18:00 10.210 5.128 2.724800729214 0.9738450 1.72052154528632 -3.4167172 169.5644 /L Sgr 3.3400 0.0000004 2023-Jun-08 00:00 10.204 5.122 2.724941174135 0.9715276 1.72003665841961 -3.2997828 169.8605 /L Sgr 3.3393 0.0000004 2023-Jun-08 06:00 10.197 5.117 2.725081284367 0.9692098 1.71956866919126 -3.1826550 170.1568 /L Sgr 3.3388 0.0000004 2023-Jun-08 12:00 10.191 5.112 2.725221059832 0.9668914 1.71911760536614 -3.0653360 170.4531 /L Sgr 3.3383 0.0000004 2023-Jun-08 18:00 10.185 5.106 2.725360500452 0.9645724 1.71868349436992 -2.9478284 170.7494 /L Sgr 3.3380 0.0000004 2023-Jun-09 00:00 10.179 5.100 2.725499606151 0.9622529 1.71826636325040 -2.8301349 171.0457 /L Sgr 3.3378 0.0000004 2023-Jun-09 06:00 10.173 5.095 2.725638376853 0.9599330 1.71786623863816 -2.7122585 171.3420 /L Sgr 3.3376 0.0000004 2023-Jun-09 12:00 10.166 5.089 2.725776812482 0.9576124 1.71748314670674 -2.5942025 171.6382 /L Sgr 3.3376 0.0000004 2023-Jun-09 18:00 10.160 5.083 2.725914912960 0.9552914 1.71711711313289 -2.4759705 171.9345 /L Sgr 3.3378 0.0000004 2023-Jun-10 00:00 10.153 5.077 2.726052678214 0.9529698 1.71676816305718 -2.3575664 172.2307 /L Sgr 3.3380 0.0000004 2023-Jun-10 06:00 10.147 5.071 2.726190108166 0.9506477 1.71643632104530 -2.2389943 172.5268 /L Sgr 3.3383 0.0000004 2023-Jun-10 12:00 10.140 5.065 2.726327202741 0.9483251 1.71612161105031 -2.1202585 172.8228 /L Oph 3.3387 0.0000004 2023-Jun-10 18:00 10.134 5.059 2.726463961865 0.9460019 1.71582405637605 -2.0013636 173.1186 /L Oph 3.3393 0.0000004 2023-Jun-11 00:00 10.127 5.052 2.726600385463 0.9436782 1.71554367964189 -1.8823146 173.4143 /L Oph 3.3400 0.0000004 2023-Jun-11 06:00 10.120 5.046 2.726736473460 0.9413541 1.71528050274900 -1.7631165 173.7098 /L Oph 3.3408 0.0000004 2023-Jun-11 12:00 10.113 5.039 2.726872225780 0.9390294 1.71503454684819 -1.6437746 174.0050 /L Oph 3.3416 0.0000004 2023-Jun-11 18:00 10.106 5.032 2.727007642351 0.9367041 1.71480583230938 -1.5242944 174.2999 /L Oph 3.3427 0.0000004 2023-Jun-12 00:00 10.099 5.025 2.727142723098 0.9343784 1.71459437869285 -1.4046816 174.5944 /L Oph 3.3438 0.0000004 2023-Jun-12 06:00 10.092 5.018 2.727277467948 0.9320522 1.71440020472210 -1.2849421 174.8885 /L Oph 3.3450 0.0000004 2023-Jun-12 12:00 10.084 5.011 2.727411876826 0.9297254 1.71422332825859 -1.1650820 175.1819 /L Oph 3.3463 0.0000004 2023-Jun-12 18:00 10.077 5.004 2.727545949660 0.9273982 1.71406376627806 -1.0451075 175.4747 /L Oph 3.3478 0.0000004 2023-Jun-13 00:00 10.069 4.996 2.727679686375 0.9250704 1.71392153484866 -0.9250249 175.7667 /L Oph 3.3494 0.0000004 2023-Jun-13 06:00 10.061 4.989 2.727813086901 0.9227421 1.71379664911074 -0.8048407 176.0576 /L Oph 3.3511 0.0000004 2023-Jun-13 12:00 10.053 4.981 2.727946151163 0.9204133 1.71368912325827 -0.6845616 176.3472 /L Oph 3.3529 0.0000004 2023-Jun-13 18:00 10.045 4.973 2.728078879089 0.9180841 1.71359897052194 -0.5641942 176.6351 /L Oph 3.3548 0.0000004 2023-Jun-14 00:00 10.036 4.965 2.728211270608 0.9157543 1.71352620315388 -0.4437455 176.9209 /L Oph 3.3568 0.0000004 2023-Jun-14 06:00 10.028 4.956 2.728343325646 0.9134240 1.71347083241389 -0.3232222 177.2038 /L Oph 3.3589 0.0000004 2023-Jun-14 12:00 10.019 4.947 2.728475044133 0.9110932 1.71343286855730 -0.2026315 177.4829 /L Oph 3.3612 0.0000004 2023-Jun-14 18:00 10.010 4.938 2.728606425997 0.9087620 1.71341232082437 -0.0819803 177.7568 /L Oph 3.3635 0.0000004 2023-Jun-15 00:00 10.001 4.929 2.728737471166 0.9064302 1.71340919743114 0.0387242 178.0232 /L Oph 3.3660 0.0000004 2023-Jun-15 06:00 9.992 4.920 2.728868179569 0.9040979 1.71342350556189 0.1594749 178.2788 /L Oph 3.3686 0.0000004 2023-Jun-15 12:00 9.983 4.911 2.728998551137 0.9017652 1.71345525136294 0.2802644 178.5178 /L Oph 3.3713 0.0000004 2023-Jun-15 18:00 9.974 4.903 2.729128585796 0.8994319 1.71350443993806 0.4010857 178.7308 /L Oph 3.3741 0.0000004 2023-Jun-16 00:00 9.967 4.895 2.729258283479 0.8970982 1.71357107534514 0.5219314 178.9027 /L Oph 3.3770 0.0000004 2023-Jun-16 06:00 9.962 4.891 2.729387644114 0.8947640 1.71365516059441 0.6427944 179.0118 /L Oph 3.3801 0.0000004 2023-Jun-16 12:00 9.962 4.890 2.729516667630 0.8924293 1.71375669764794 0.7636672 179.0363 /T Oph 3.3832 0.0000004 2023-Jun-16 18:00 9.965 4.893 2.729645353960 0.8900941 1.71387568742049 0.8845427 178.9704 /T Oph 3.3865 0.0000004 2023-Jun-17 00:00 9.971 4.899 2.729773703032 0.8877584 1.71401212978164 1.0054137 178.8292 /T Oph 3.3898 0.0000004 2023-Jun-17 06:00 9.980 4.907 2.729901714778 0.8854222 1.71416602355918 1.1262730 178.6359 /T Oph 3.3933 0.0000004 2023-Jun-17 12:00 9.989 4.916 2.730029389129 0.8830856 1.71433736654359 1.2471133 178.4093 /T Oph 3.3969 0.0000004 2023-Jun-17 18:00 9.999 4.926 2.730156726015 0.8807485 1.71452615549376 1.3679276 178.1619 /T Oph 3.4005 0.0000004 2023-Jun-18 00:00 10.008 4.935 2.730283725369 0.8784109 1.71473238614357 1.4887088 177.9009 /T Oph 3.4043 0.0000004 2023-Jun-18 06:00 10.018 4.944 2.730410387120 0.8760728 1.71495605320960 1.6094499 177.6308 /T Oph 3.4082 0.0000004 2023-Jun-18 12:00 10.027 4.953 2.730536711203 0.8737343 1.71519715039959 1.7301438 177.3545 /T Oph 3.4122 0.0000004 2023-Jun-18 18:00 10.036 4.962 2.730662697547 0.8713953 1.71545567042172 1.8507839 177.0738 /T Oph 3.4164 0.0000004 2023-Jun-19 00:00 10.045 4.971 2.730788346087 0.8690558 1.71573160499461 1.9713631 176.7897 /T Oph 3.4206 0.0000004 2023-Jun-19 06:00 10.054 4.979 2.730913656753 0.8667159 1.71602494485786 2.0918748 176.5032 /T Oph 3.4249 0.0000004 2023-Jun-19 12:00 10.063 4.987 2.731038629479 0.8643754 1.71633567978316 2.2123123 176.2149 /T Oph 3.4293 0.0000004 2023-Jun-19 18:00 10.071 4.995 2.731163264197 0.8620346 1.71666379858575 2.3326690 175.9250 /T Oph 3.4338 0.0000004 2023-Jun-20 00:00 10.079 5.003 2.731287560841 0.8596932 1.71700928913627 2.4529385 175.6340 /T Oph 3.4385 0.0000004 2023-Jun-20 06:00 10.087 5.010 2.731411519344 0.8573514 1.71737213837274 2.5731143 175.3421 /T Oph 3.4432 0.0000004 2023-Jun-20 12:00 10.095 5.018 2.731535139639 0.8550091 1.71775233231280 2.6931900 175.0494 /T Oph 3.4480 0.0000004 2023-Jun-20 18:00 10.103 5.025 2.731658421661 0.8526664 1.71814985606591 2.8131595 174.7562 /T Oph 3.4530 0.0000004 2023-Jun-21 00:00 10.111 5.032 2.731781365342 0.8503232 1.71856469384564 2.9330165 174.4625 /T Oph 3.4580 0.0000004 2023-Jun-21 06:00 10.118 5.039 2.731903970617 0.8479795 1.71899682898179 3.0527550 174.1683 /T Oph 3.4631 0.0000004 2023-Jun-21 12:00 10.126 5.046 2.732026237421 0.8456354 1.71944624393248 3.1723690 173.8739 /T Oph 3.4684 0.0000004 2023-Jun-21 18:00 10.133 5.053 2.732148165687 0.8432909 1.71991292029598 3.2918526 173.5792 /T Oph 3.4737 0.0000004 2023-Jun-22 00:00 10.140 5.059 2.732269755351 0.8409458 1.72039683882237 3.4111999 173.2843 /T Oph 3.4791 0.0000004 2023-Jun-22 06:00 10.148 5.066 2.732391006348 0.8386004 1.72089797942492 3.5304052 172.9892 /T Oph 3.4846 0.0000004 2023-Jun-22 12:00 10.155 5.072 2.732511918612 0.8362545 1.72141632119122 3.6494628 172.6940 /T Oph 3.4902 0.0000004 2023-Jun-22 18:00 10.162 5.079 2.732632492080 0.8339081 1.72195184239401 3.7683671 172.3988 /T Oph 3.4959 0.0000004 2023-Jun-23 00:00 10.169 5.085 2.732752726686 0.8315613 1.72250452050177 3.8871126 172.1034 /T Oph 3.5017 0.0000004 2023-Jun-23 06:00 10.175 5.091 2.732872622366 0.8292140 1.72307433218894 4.0056937 171.8081 /T Oph 3.5076 0.0000004 2023-Jun-23 12:00 10.182 5.097 2.732992179056 0.8268663 1.72366125334601 4.1241052 171.5127 /T Oph 3.5136 0.0000004 2023-Jun-23 18:00 10.189 5.103 2.733111396692 0.8245181 1.72426525908926 4.2423416 171.2173 /T Oph 3.5196 0.0000004 2023-Jun-24 00:00 10.196 5.109 2.733230275211 0.8221695 1.72488632377040 4.3603978 170.9219 /T Oph 3.5258 0.0000004 2023-Jun-24 06:00 10.202 5.115 2.733348814549 0.8198205 1.72552442098602 4.4782685 170.6266 /T Oph 3.5320 0.0000004 2023-Jun-24 12:00 10.209 5.120 2.733467014643 0.8174710 1.72617952358694 4.5959485 170.3313 /T Oph 3.5383 0.0000004 2023-Jun-24 18:00 10.215 5.126 2.733584875430 0.8151211 1.72685160368759 4.7134329 170.0360 /T Oph 3.5447 0.0000004 2023-Jun-25 00:00 10.222 5.131 2.733702396846 0.8127707 1.72754063267537 4.8307165 169.7409 /T Oph 3.5512 0.0000004 $$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. STATISTICAL UNCERTAINTIES Output includes formal +/- 3 standard-deviation statistical orbit uncertainty quantities. There is a 99.7% (1-D) or 98.9% (2-D) chance the actual value is within given bounds. These statistical calculations assume observational data errors are random. If there are systematic biases (such as timing, reduction or star-catalog errors), results can be optimistic. Because the epoch covariance is mapped using linearized variational partial derivatives, results can also be optimistic for times far from the solution epoch, particularly for objects having close planetary encounters. '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 '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 '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. 'RNG_3sigma RNGRT_3sig' = Range and range rate (radial velocity) formal 3-standard-deviation uncertainties. Units: KM, KM/S 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 = '20' START_TIME = '2023-06-01' STOP_TIME = '2023-06-25' STEP_SIZE = '6 hour' QUANTITIES = '9,19,20,23,29,39'