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HORIZONS Web-Interface

Current Settings

This tool provides a web-based limited interface to JPL's HORIZONS system which can be used to generate ephemerides for solar-system bodies. Full access to HORIZONS features is available via the primary telnet interface. HORIZONS system news shows recent changes and improvements. A web-interface tutorial is available to assist new users.

Object Data Page

JPL/HORIZONS (2013 NJ) 2013-Dec-01 23:43:02 Rec #:739592 (+COV) Soln.date: 2013-Nov-29_10:18:15 # obs: 50 (150 days) FK5/J2000.0 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2456531.5 ! 2013-Aug-27.00 (CT) Residual RMS= .17541 EC= .2819840327071956 QR= .921916120592842 TP= 2456585.5196573636 OM= 239.001292424746 W= 140.0684626487045 IN= 4.142891795660557 A= 1.283977185171549 MA= 323.4051527433915 ADIST= 1.646038249750256 PER= 1.45494 N= .677435734 ANGMOM= .018701156 DAN= 1.50794 DDN= .97176 L= 19.1435234 B= 2.6578417 MOID= .00642999 TP= 2013-Oct-20.0196573636 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 21.8 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#18, PHA OCC=4 2: source=ORB

Results

******************************************************************************* Ephemeris / WWW_USER Sun Dec 1 23:43:02 2013 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2013 NJ) {source: JPL#18} Center body name: Earth (399) {source: DE-0431LE-0431} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2013-Nov-26 02:00:00.0000 UT Stop time : A.D. 2013-Nov-26 04:00:00.0000 UT Step-size : 1 minutes ******************************************************************************* Target pole/equ : No model available Target radii : (unavailable) Center geodetic : 0.00000000,0.00000000,0.0000000 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.00000000,0.00000000,0.0000000 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : High-precision EOP model {East-longitude +} Center radii : 6378.1 x 6378.1 x 6356.8 km {Equator, meridian, pole} Target primary : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE-0431LE-0431} Rel. light bend : Sun, EARTH {source: DE-0431LE-0431} Rel. lght bnd GM: 1.3271E+11, 3.9860E+05 km^3/s^2 Small-body perts: Yes {source: SB431-BIG16} Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL EOP file : eop.131128.p140219 EOP coverage : DATA-BASED 1962-JAN-20 TO 2013-NOV-28. PREDICTS-> 2014-FEB-18 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 ) ******************************************************************************* Initial FK5/J2000.0 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2456531.5 ! 2013-Aug-27.00 (CT) Residual RMS= .17541 EC= .2819840327071956 QR= .921916120592842 TP= 2456585.5196573636 OM= 239.001292424746 W= 140.0684626487045 IN= 4.142891795660557 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 21.8 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************************************* Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC APmag delta deldot S-O-T /r S-T-O ******************************************************************************************************* $$SOE 2013-Nov-26 02:00 10 27 13.73 -85 55 53.9 15.00 0.00634103782569 -0.1956823 68.7937 /L 110.8627 2013-Nov-26 02:01 10 25 56.29 -85 55 20.7 15.00 0.00634095992515 -0.1927720 68.8159 /L 110.8404 2013-Nov-26 02:02 10 24 39.20 -85 54 47.1 15.00 0.00634088319192 -0.1898615 68.8382 /L 110.8181 2013-Nov-26 02:03 10 23 22.47 -85 54 13.0 14.99 0.00634080762605 -0.1869509 68.8605 /L 110.7958 2013-Nov-26 02:04 10 22 06.08 -85 53 38.4 14.99 0.00634073322758 -0.1840402 68.8827 /L 110.7735 2013-Nov-26 02:05 10 20 50.05 -85 53 03.4 14.99 0.00634065999655 -0.1811294 68.9050 /L 110.7512 2013-Nov-26 02:06 10 19 34.38 -85 52 28.0 14.99 0.00634058793299 -0.1782185 68.9273 /L 110.7288 2013-Nov-26 02:07 10 18 19.08 -85 51 52.0 14.99 0.00634051703695 -0.1753075 68.9496 /L 110.7065 2013-Nov-26 02:08 10 17 04.13 -85 51 15.7 14.99 0.00634044730847 -0.1723965 68.9718 /L 110.6842 2013-Nov-26 02:09 10 15 49.55 -85 50 38.9 14.99 0.00634037874757 -0.1694853 68.9941 /L 110.6619 2013-Nov-26 02:10 10 14 35.33 -85 50 01.7 14.98 0.00634031135430 -0.1665741 69.0164 /L 110.6395 2013-Nov-26 02:11 10 13 21.48 -85 49 24.0 14.98 0.00634024512870 -0.1636627 69.0387 /L 110.6172 2013-Nov-26 02:12 10 12 08.00 -85 48 45.9 14.98 0.00634018007079 -0.1607513 69.0610 /L 110.5949 2013-Nov-26 02:13 10 10 54.89 -85 48 07.4 14.98 0.00634011618060 -0.1578398 69.0833 /L 110.5725 2013-Nov-26 02:14 10 09 42.15 -85 47 28.4 14.98 0.00634005345819 -0.1549282 69.1055 /L 110.5502 2013-Nov-26 02:15 10 08 29.79 -85 46 49.1 14.98 0.00633999190356 -0.1520165 69.1278 /L 110.5279 2013-Nov-26 02:16 10 07 17.80 -85 46 09.3 14.98 0.00633993151677 -0.1491048 69.1501 /L 110.5055 2013-Nov-26 02:17 10 06 06.18 -85 45 29.1 14.97 0.00633987229784 -0.1461930 69.1724 /L 110.4832 2013-Nov-26 02:18 10 04 54.94 -85 44 48.4 14.97 0.00633981424680 -0.1432811 69.1947 /L 110.4609 2013-Nov-26 02:19 10 03 44.08 -85 44 07.4 14.97 0.00633975736368 -0.1403691 69.2170 /L 110.4385 2013-Nov-26 02:20 10 02 33.60 -85 43 26.0 14.97 0.00633970164851 -0.1374570 69.2393 /L 110.4162 2013-Nov-26 02:21 10 01 23.49 -85 42 44.2 14.97 0.00633964710132 -0.1345449 69.2616 /L 110.3938 2013-Nov-26 02:22 10 00 13.76 -85 42 01.9 14.97 0.00633959372214 -0.1316327 69.2839 /L 110.3715 2013-Nov-26 02:23 09 59 04.41 -85 41 19.3 14.97 0.00633954151100 -0.1287205 69.3062 /L 110.3491 2013-Nov-26 02:24 09 57 55.44 -85 40 36.3 14.97 0.00633949046792 -0.1258081 69.3285 /L 110.3268 2013-Nov-26 02:25 09 56 46.86 -85 39 52.9 14.96 0.00633944059292 -0.1228957 69.3508 /L 110.3044 2013-Nov-26 02:26 09 55 38.65 -85 39 09.1 14.96 0.00633939188605 -0.1199833 69.3731 /L 110.2821 2013-Nov-26 02:27 09 54 30.82 -85 38 25.0 14.96 0.00633934434731 -0.1170708 69.3954 /L 110.2597 2013-Nov-26 02:28 09 53 23.37 -85 37 40.4 14.96 0.00633929797674 -0.1141582 69.4177 /L 110.2374 2013-Nov-26 02:29 09 52 16.30 -85 36 55.5 14.96 0.00633925277436 -0.1112455 69.4400 /L 110.2150 2013-Nov-26 02:30 09 51 09.62 -85 36 10.2 14.96 0.00633920874019 -0.1083328 69.4623 /L 110.1927 2013-Nov-26 02:31 09 50 03.31 -85 35 24.5 14.96 0.00633916587425 -0.1054201 69.4846 /L 110.1703 2013-Nov-26 02:32 09 48 57.39 -85 34 38.5 14.95 0.00633912417657 -0.1025073 69.5069 /L 110.1480 2013-Nov-26 02:33 09 47 51.84 -85 33 52.1 14.95 0.00633908364717 -0.0995944 69.5293 /L 110.1256 2013-Nov-26 02:34 09 46 46.68 -85 33 05.3 14.95 0.00633904428606 -0.0966815 69.5516 /L 110.1032 2013-Nov-26 02:35 09 45 41.89 -85 32 18.2 14.95 0.00633900609327 -0.0937686 69.5739 /L 110.0809 2013-Nov-26 02:36 09 44 37.48 -85 31 30.8 14.95 0.00633896906882 -0.0908556 69.5962 /L 110.0585 2013-Nov-26 02:37 09 43 33.45 -85 30 42.9 14.95 0.00633893321273 -0.0879425 69.6185 /L 110.0361 2013-Nov-26 02:38 09 42 29.80 -85 29 54.8 14.95 0.00633889852501 -0.0850294 69.6408 /L 110.0138 2013-Nov-26 02:39 09 41 26.53 -85 29 06.3 14.94 0.00633886500568 -0.0821163 69.6632 /L 109.9914 2013-Nov-26 02:40 09 40 23.63 -85 28 17.4 14.94 0.00633883265475 -0.0792031 69.6855 /L 109.9690 2013-Nov-26 02:41 09 39 21.11 -85 27 28.2 14.94 0.00633880147226 -0.0762899 69.7078 /L 109.9467 2013-Nov-26 02:42 09 38 18.96 -85 26 38.7 14.94 0.00633877145820 -0.0733766 69.7301 /L 109.9243 2013-Nov-26 02:43 09 37 17.19 -85 25 48.9 14.94 0.00633874261259 -0.0704633 69.7525 /L 109.9019 2013-Nov-26 02:44 09 36 15.79 -85 24 58.7 14.94 0.00633871493545 -0.0675500 69.7748 /L 109.8796 2013-Nov-26 02:45 09 35 14.76 -85 24 08.2 14.94 0.00633868842680 -0.0646366 69.7971 /L 109.8572 2013-Nov-26 02:46 09 34 14.10 -85 23 17.4 14.94 0.00633866308664 -0.0617233 69.8194 /L 109.8348 2013-Nov-26 02:47 09 33 13.82 -85 22 26.2 14.93 0.00633863891498 -0.0588098 69.8418 /L 109.8124 2013-Nov-26 02:48 09 32 13.90 -85 21 34.7 14.93 0.00633861591185 -0.0558964 69.8641 /L 109.7900 2013-Nov-26 02:49 09 31 14.35 -85 20 43.0 14.93 0.00633859407724 -0.0529829 69.8864 /L 109.7677 2013-Nov-26 02:50 09 30 15.17 -85 19 50.9 14.93 0.00633857341117 -0.0500694 69.9088 /L 109.7453 2013-Nov-26 02:51 09 29 16.35 -85 18 58.5 14.93 0.00633855391365 -0.0471559 69.9311 /L 109.7229 2013-Nov-26 02:52 09 28 17.90 -85 18 05.7 14.93 0.00633853558469 -0.0442424 69.9534 /L 109.7005 2013-Nov-26 02:53 09 27 19.81 -85 17 12.7 14.93 0.00633851842429 -0.0413288 69.9758 /L 109.6781 2013-Nov-26 02:54 09 26 22.08 -85 16 19.4 14.92 0.00633850243247 -0.0384152 69.9981 /L 109.6558 2013-Nov-26 02:55 09 25 24.71 -85 15 25.8 14.92 0.00633848760923 -0.0355016 70.0204 /L 109.6334 2013-Nov-26 02:56 09 24 27.70 -85 14 31.9 14.92 0.00633847395457 -0.0325880 70.0428 /L 109.6110 2013-Nov-26 02:57 09 23 31.05 -85 13 37.7 14.92 0.00633846146851 -0.0296744 70.0651 /L 109.5886 2013-Nov-26 02:58 09 22 34.76 -85 12 43.2 14.92 0.00633845015104 -0.0267607 70.0875 /L 109.5662 2013-Nov-26 02:59 09 21 38.82 -85 11 48.5 14.92 0.00633844000218 -0.0238471 70.1098 /L 109.5438 2013-Nov-26 03:00 09 20 43.23 -85 10 53.4 14.92 0.00633843102192 -0.0209334 70.1321 /L 109.5214 2013-Nov-26 03:01 09 19 48.00 -85 09 58.1 14.92 0.00633842321027 -0.0180198 70.1545 /L 109.4990 2013-Nov-26 03:02 09 18 53.11 -85 09 02.5 14.91 0.00633841656724 -0.0151061 70.1768 /L 109.4766 2013-Nov-26 03:03 09 17 58.58 -85 08 06.6 14.91 0.00633841109281 -0.0121924 70.1992 /L 109.4542 2013-Nov-26 03:04 09 17 04.39 -85 07 10.5 14.91 0.00633840678700 -0.0092787 70.2215 /L 109.4319 2013-Nov-26 03:05 09 16 10.54 -85 06 14.0 14.91 0.00633840364981 -0.0063651 70.2439 /L 109.4095 2013-Nov-26 03:06 09 15 17.04 -85 05 17.3 14.91 0.00633840168123 -0.0034514 70.2662 /L 109.3871 2013-Nov-26 03:07 09 14 23.88 -85 04 20.4 14.91 0.00633840088126 -0.0005377 70.2886 /L 109.3647 2013-Nov-26 03:08 09 13 31.06 -85 03 23.2 14.91 0.00633840124991 0.0023760 70.3109 /L 109.3423 2013-Nov-26 03:09 09 12 38.58 -85 02 25.7 14.90 0.00633840278717 0.0052896 70.3333 /L 109.3199 2013-Nov-26 03:10 09 11 46.44 -85 01 27.9 14.90 0.00633840549303 0.0082033 70.3556 /L 109.2975 2013-Nov-26 03:11 09 10 54.63 -85 00 30.0 14.90 0.00633840936750 0.0111169 70.3780 /L 109.2751 2013-Nov-26 03:12 09 10 03.16 -84 59 31.7 14.90 0.00633841441057 0.0140306 70.4003 /L 109.2527 2013-Nov-26 03:13 09 09 12.01 -84 58 33.2 14.90 0.00633842062223 0.0169442 70.4227 /L 109.2303 2013-Nov-26 03:14 09 08 21.20 -84 57 34.5 14.90 0.00633842800249 0.0198578 70.4451 /L 109.2079 2013-Nov-26 03:15 09 07 30.71 -84 56 35.5 14.90 0.00633843655133 0.0227714 70.4674 /L 109.1854 2013-Nov-26 03:16 09 06 40.55 -84 55 36.3 14.90 0.00633844626875 0.0256850 70.4898 /L 109.1630 2013-Nov-26 03:17 09 05 50.72 -84 54 36.8 14.89 0.00633845715473 0.0285985 70.5121 /L 109.1406 2013-Nov-26 03:18 09 05 01.20 -84 53 37.1 14.89 0.00633846920928 0.0315121 70.5345 /L 109.1182 2013-Nov-26 03:19 09 04 12.01 -84 52 37.2 14.89 0.00633848243239 0.0344256 70.5569 /L 109.0958 2013-Nov-26 03:20 09 03 23.14 -84 51 37.0 14.89 0.00633849682404 0.0373391 70.5792 /L 109.0734 2013-Nov-26 03:21 09 02 34.58 -84 50 36.6 14.89 0.00633851238422 0.0402526 70.6016 /L 109.0510 2013-Nov-26 03:22 09 01 46.34 -84 49 36.0 14.89 0.00633852911293 0.0431660 70.6239 /L 109.0286 2013-Nov-26 03:23 09 00 58.41 -84 48 35.1 14.89 0.00633854701015 0.0460794 70.6463 /L 109.0062 2013-Nov-26 03:24 09 00 10.79 -84 47 34.0 14.89 0.00633856607588 0.0489928 70.6687 /L 108.9838 2013-Nov-26 03:25 08 59 23.48 -84 46 32.7 14.88 0.00633858631009 0.0519062 70.6910 /L 108.9613 2013-Nov-26 03:26 08 58 36.48 -84 45 31.2 14.88 0.00633860771278 0.0548195 70.7134 /L 108.9389 2013-Nov-26 03:27 08 57 49.79 -84 44 29.4 14.88 0.00633863028393 0.0577328 70.7358 /L 108.9165 2013-Nov-26 03:28 08 57 03.39 -84 43 27.5 14.88 0.00633865402353 0.0606460 70.7581 /L 108.8941 2013-Nov-26 03:29 08 56 17.30 -84 42 25.3 14.88 0.00633867893157 0.0635592 70.7805 /L 108.8717 2013-Nov-26 03:30 08 55 31.51 -84 41 22.9 14.88 0.00633870500802 0.0664724 70.8029 /L 108.8493 2013-Nov-26 03:31 08 54 46.02 -84 40 20.4 14.88 0.00633873225287 0.0693855 70.8252 /L 108.8268 2013-Nov-26 03:32 08 54 00.83 -84 39 17.6 14.87 0.00633876066610 0.0722986 70.8476 /L 108.8044 2013-Nov-26 03:33 08 53 15.92 -84 38 14.6 14.87 0.00633879024771 0.0752116 70.8700 /L 108.7820 2013-Nov-26 03:34 08 52 31.31 -84 37 11.4 14.87 0.00633882099766 0.0781246 70.8924 /L 108.7596 2013-Nov-26 03:35 08 51 46.99 -84 36 08.0 14.87 0.00633885291594 0.0810376 70.9147 /L 108.7372 2013-Nov-26 03:36 08 51 02.96 -84 35 04.4 14.87 0.00633888600253 0.0839505 70.9371 /L 108.7147 2013-Nov-26 03:37 08 50 19.22 -84 34 00.6 14.87 0.00633892025740 0.0868633 70.9595 /L 108.6923 2013-Nov-26 03:38 08 49 35.75 -84 32 56.6 14.87 0.00633895568055 0.0897761 70.9819 /L 108.6699 2013-Nov-26 03:39 08 48 52.58 -84 31 52.4 14.87 0.00633899227195 0.0926889 71.0042 /L 108.6475 2013-Nov-26 03:40 08 48 09.68 -84 30 48.0 14.86 0.00633903003157 0.0956015 71.0266 /L 108.6251 2013-Nov-26 03:41 08 47 27.06 -84 29 43.4 14.86 0.00633906895939 0.0985142 71.0490 /L 108.6026 2013-Nov-26 03:42 08 46 44.72 -84 28 38.7 14.86 0.00633910905539 0.1014267 71.0714 /L 108.5802 2013-Nov-26 03:43 08 46 02.65 -84 27 33.7 14.86 0.00633915031955 0.1043392 71.0937 /L 108.5578 2013-Nov-26 03:44 08 45 20.86 -84 26 28.6 14.86 0.00633919275183 0.1072517 71.1161 /L 108.5353 2013-Nov-26 03:45 08 44 39.34 -84 25 23.3 14.86 0.00633923635223 0.1101641 71.1385 /L 108.5129 2013-Nov-26 03:46 08 43 58.08 -84 24 17.8 14.86 0.00633928112070 0.1130764 71.1609 /L 108.4905 2013-Nov-26 03:47 08 43 17.10 -84 23 12.2 14.86 0.00633932705722 0.1159886 71.1833 /L 108.4681 2013-Nov-26 03:48 08 42 36.38 -84 22 06.3 14.85 0.00633937416176 0.1189008 71.2056 /L 108.4456 2013-Nov-26 03:49 08 41 55.92 -84 21 00.3 14.85 0.00633942243431 0.1218129 71.2280 /L 108.4232 2013-Nov-26 03:50 08 41 15.73 -84 19 54.1 14.85 0.00633947187482 0.1247249 71.2504 /L 108.4008 2013-Nov-26 03:51 08 40 35.79 -84 18 47.8 14.85 0.00633952248327 0.1276369 71.2728 /L 108.3783 2013-Nov-26 03:52 08 39 56.12 -84 17 41.3 14.85 0.00633957425963 0.1305488 71.2952 /L 108.3559 2013-Nov-26 03:53 08 39 16.70 -84 16 34.6 14.85 0.00633962720387 0.1334606 71.3176 /L 108.3335 2013-Nov-26 03:54 08 38 37.53 -84 15 27.7 14.85 0.00633968131596 0.1363723 71.3399 /L 108.3110 2013-Nov-26 03:55 08 37 58.62 -84 14 20.7 14.85 0.00633973659586 0.1392840 71.3623 /L 108.2886 2013-Nov-26 03:56 08 37 19.96 -84 13 13.5 14.84 0.00633979304354 0.1421956 71.3847 /L 108.2662 2013-Nov-26 03:57 08 36 41.54 -84 12 06.2 14.84 0.00633985065898 0.1451071 71.4071 /L 108.2437 2013-Nov-26 03:58 08 36 03.38 -84 10 58.7 14.84 0.00633990944213 0.1480185 71.4295 /L 108.2213 2013-Nov-26 03:59 08 35 25.46 -84 09 51.0 14.84 0.00633996939297 0.1509298 71.4519 /L 108.1989 2013-Nov-26 04:00 08 34 47.78 -84 08 43.2 14.84 0.00634003051145 0.1538410 71.4743 /L 108.1764 $$EOE ******************************************************************************************************* Column meaning: TIME Prior to 1962, times are UT1. Dates thereafter are UTC. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. Calendar dates prior to 1582-Oct-15 are in the Julian calendar system. Later calendar dates are in the Gregorian system. Time tags refer to the same instant throughout the universe, regardless of where the observer is located. The dynamical Coordinate Time scale is used internally. It is equivalent to the current IAU definition of "TDB". Conversion between CT and the selected non-uniform UT output scale has not been determined for UTC times after the next July or January 1st. The last known leap-second is used over any future interval. NOTE: "n.a." in output means quantity "not available" at the print-time. R.A._(ICRF/J2000.0)_DEC = J2000.0 astrometric right ascension and declination of target center. Adjusted for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f) APmag = Asteroid's approximate apparent visual magnitude by following definition: APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi1 + G*phi2). In principle, accurate to ~ +/- 0.1 magnitude. 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. Units: NONE delta deldot = Range ("delta") and range-rate ("delta-dot") of target center with respect to the observer at the instant light seen by the observer at print-time would have left the target center (print-time minus down-leg light-time); the distance traveled by a light ray emanating from the center of the target and recorded by the observer at print-time. "deldot" is a projection of the velocity vector along this ray, the light-time-corrected line-of-sight from the coordinate center, and indicates relative motion. A positive "deldot" means the target center is moving away from the observer (coordinate center). A negative "deldot" means the target center is moving toward the observer. Units: AU and KM/S S-O-T /r = Sun-Observer-Target angle; target's apparent solar elongation seen from observer location at print-time. If negative, the target center is behind the Sun. Angular units: DEGREES. The '/r' column is a Sun-relative code, output for observing sites with defined rotation models only. /T indicates target trails Sun (evening sky) /L indicates target leads Sun (morning sky) NOTE: The S-O-T solar elongation angle is the total separation in any direction. It does not indicate the angle of Sun leading or trailing. S-T-O = "S-T-O" is the Sun->Target->Observer angle; the interior vertex angle at target center formed by a vector to the apparent center of the Sun at reflection time on the target and the apparent vector 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 Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA Information: http://ssd.jpl.nasa.gov/ Connect : telnet://ssd.jpl.nasa.gov:6775 (via browser) telnet ssd.jpl.nasa.gov 6775 (via command-line) Author : Jon.Giorgini@jpl.nasa.gov *******************************************************************************************************

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