Ephemeris Generator Ephemeris Settings Target Body: Asteroid (2004 RF84) Observer Location: RIT Observatory, Rochester [Code=920] Coordinates: 77°39'52.9''W, 43°04'32.9''N, 148.659 m From: A.D. 2005-03-03 00:00 UT To: A.D. 2005-03-18 00:00 Step: 2 hour Format: Calendar Date and Time Output Quantities: 1-2,4,9-10,13-14,19-21,24,29,32 Ref. Frame, RA/Dec Format: J2000, HMS Apparent Coordinates Model: Airless HORIZONS Generated Ephemeris ******************************************************************************* Ephemeris / WWW_USER Thu Mar 3 07:42:43 2005 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2004 RF84) {source: JPL#32} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: RIT Observatory, Rochester ******************************************************************************* Start time : A.D. 2005-Mar-03 00:00:00.0000 UT Stop time : A.D. 2005-Mar-18 00:00:00.0000 UT Step-size : 120 minutes ******************************************************************************* Center geodetic : 282.335300, 43.0759, 0.15{E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 282.335300, 4666.3166, 4333.76{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 pole/equ : No model available Target radii : (unavailable) Target primary : Sun {source: DE-0406LE-0406} Interfering body: MOON (Req= 1737.400) km {source: DE-0406LE-0406} Deflecting body : Sun, EARTH {source: DE-0406LE-0406} Deflecting GMs : 1.3271E+11, 3.9860E+05 km^3/s^2 Small perturbers: Ceres, Pallas, Vesta {source: SB405-CPV-2} Small body GMs : 6.32E+01, 1.43E+01, 1.78E+01 km^3/s^2 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL EOP file : eop.050301.p050523 EOP coverage : DATA-BASED 1962-JAN-20 TO 2005-MAR-01. PREDICTS-> 2005-MAY-22 Units conversion: 1 AU= 149597870.691 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 ( 0.0,180.0=NO ) ******************************************************************************* Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG): EPOCH= 2453307.5 ! 2004-Oct-29.00 (CT) Residual RMS= .563 EC= .604044304278554 QR= .8574100850691917 TP= 2453390.207570912 OM= 344.8252949786122 W= 122.4577887326152 IN= 23.24488376903897 Asteroid physical parameters (KM, SEC, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 18.154 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ************************************************************************************************************************************************************************************************************************** Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC R.A.__(a-apparent)__DEC Azi_(a-appr)_Elev APmag Illu% Ang-diam Ob-lon Ob-lat r rdot delta deldot 1-way_LT S-T-O Cnst N.Pole-RA N.Pole-DC ************************************************************************************************************************************************************************************************************************** >..... Elevation Cut-off Requested .....< 2005-Mar-03 04:00 13 38 37.01 -14 17 33.2 13 38 54.03 -14 19 12.7 120.3469 9.8058 14.20 86.7 n.a. n.a. n.a. 1.0432113112 13.03332 0.0721691878 9.23755 0.600213 42.7351 Vir n.a. n.a. 2005-Mar-03 06:00 13 36 50.84 -14 38 52.8 13 37 07.88 -14 40 32.6 146.6127 25.7031 14.20 86.9 n.a. n.a. n.a. 1.0438390524 13.04577 0.0726195513 9.49805 0.603958 42.4151 Vir n.a. n.a. 2005-Mar-03 08:00 m 13 35 04.78 -14 59 47.9 13 35 21.83 -15 01 28.0 179.6461 31.8990 14.21 87.1 n.a. n.a. n.a. 1.0444673907 13.05818 0.0730837526 9.80193 0.607819 42.0985 Vir n.a. n.a. 2005-Mar-03 10:00 m 13 33 19.69 -15 20 17.6 13 33 36.76 -15 21 57.9 212.4620 25.3224 14.21 87.3 n.a. n.a. n.a. 1.0450963241 13.07053 0.0735628112 10.10273 0.611803 41.7880 Vir n.a. n.a. >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2005-Mar-04 04:00 13 18 51.79 -18 11 05.8 13 19 08.93 -18 12 47.5 127.3211 10.3802 14.29 88.6 n.a. n.a. n.a. 1.0507831535 13.17970 0.0781201883 10.77209 0.649706 39.4135 Vir n.a. n.a. 2005-Mar-04 06:00 13 17 16.80 -18 28 43.9 13 17 33.94 -18 30 25.9 153.9625 24.2803 14.30 88.8 n.a. n.a. n.a. 1.0514179205 13.19160 0.0786439268 11.01327 0.654062 39.1710 Vir n.a. n.a. 2005-Mar-04 08:00 m 13 15 42.07 -18 45 58.4 13 15 59.22 -18 47 40.5 185.9142 27.9215 14.31 88.9 n.a. n.a. n.a. 1.0520532586 13.20346 0.0791803820 11.28882 0.658523 38.9313 Vir n.a. n.a. 2005-Mar-04 10:00 m 13 14 08.43 -19 02 48.5 13 14 25.58 -19 04 30.8 216.1238 19.5945 14.32 89.0 n.a. n.a. n.a. 1.0526891655 13.21528 0.0797301346 11.55265 0.663095 38.6970 Vir n.a. n.a. >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< 2005-Mar-05 04:00 13 01 18.02 -21 22 44.6 13 01 35.18 -21 24 27.9 133.3916 10.7955 14.42 90.0 n.a. n.a. n.a. 1.0584375939 13.31962 0.0848507992 11.99546 0.705683 36.9375 Vir n.a. n.a. 2005-Mar-05 06:00 12 59 53.54 -21 37 08.8 13 00 10.70 -21 38 52.3 160.2056 22.8017 14.43 90.1 n.a. n.a. n.a. 1.0590790769 13.33099 0.0854330334 12.21989 0.710525 36.7586 Vir n.a. n.a. 2005-Mar-05 08:00 12 58 29.41 -21 51 11.2 12 58 46.57 -21 52 54.9 191.0045 24.2843 14.44 90.2 n.a. n.a. n.a. 1.0597211054 13.34232 0.0860269948 12.47076 0.715465 36.5819 Vir n.a. n.a. 2005-Mar-05 10:00 m 12 57 06.43 -22 04 51.6 12 57 23.58 -22 06 35.4 219.1255 14.5873 14.45 90.2 n.a. n.a. n.a. 1.0603636774 13.35361 0.0866328850 12.70271 0.720504 36.4092 Vir n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-06 04:00 12 45 45.33 -23 58 39.1 12 46 02.45 -24 00 23.6 138.6701 11.0942 14.56 90.9 n.a. n.a. n.a. 1.0661709577 13.45324 0.0921997074 12.96845 0.766802 35.1338 Hya n.a. n.a. 2005-Mar-06 06:00 12 44 30.41 -24 10 21.3 12 44 47.53 -24 12 05.9 165.5187 21.3574 14.58 91.0 n.a. n.a. n.a. 1.0668188546 13.46410 0.0928285035 13.17940 0.772031 35.0044 Hya n.a. n.a. 2005-Mar-06 08:00 12 43 15.92 -24 21 43.8 12 43 33.03 -24 23 28.6 195.2106 21.0209 14.59 91.0 n.a. n.a. n.a. 1.0674672723 13.47492 0.0934681988 13.40983 0.777351 34.8761 Hya n.a. n.a. 2005-Mar-06 10:00 m 12 42 02.56 -24 32 47.1 12 42 19.66 -24 34 32.0 221.6509 10.2251 14.60 91.1 n.a. n.a. n.a. 1.0681162088 13.48569 0.0941186663 13.61529 0.782761 34.7508 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-07 04:00 12 32 01.32 -26 05 08.1 12 32 18.36 -26 06 53.4 143.2768 11.3098 14.72 91.5 n.a. n.a. n.a. 1.0739796652 13.58075 0.1000400443 13.74683 0.832008 33.8391 Hya n.a. n.a. 2005-Mar-07 06:00 12 30 54.93 -26 14 38.1 12 31 11.97 -26 16 23.5 170.0723 19.9923 14.73 91.6 n.a. n.a. n.a. 1.0746336821 13.59110 0.1007061386 13.94734 0.837547 33.7464 Hya n.a. n.a. 2005-Mar-07 08:00 12 29 49.00 -26 23 50.7 12 30 06.02 -26 25 36.3 198.7501 18.1148 14.75 91.6 n.a. n.a. n.a. 1.0752881957 13.60141 0.1013824537 14.16120 0.843172 33.6542 Hya n.a. n.a. 2005-Mar-07 10:00 12 28 44.18 -26 32 46.6 12 29 01.19 -26 34 32.2 223.8238 6.4161 14.76 91.7 n.a. n.a. n.a. 1.0759432039 13.61169 0.1020685771 14.34490 0.848878 33.5639 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-08 04:00 12 19 53.29 -27 47 49.2 12 20 10.22 -27 49 35.1 147.3234 11.4670 14.88 92.0 n.a. n.a. n.a. 1.0818602317 13.70229 0.1082743914 14.37660 0.900491 32.9169 Hya n.a. n.a. 2005-Mar-08 06:00 12 18 54.42 -27 55 32.7 12 19 11.34 -27 57 18.6 174.0128 18.7239 14.89 92.0 n.a. n.a. n.a. 1.0825200826 13.71216 0.1089707005 14.56911 0.906282 32.8510 Hya n.a. n.a. 2005-Mar-08 08:00 12 17 56.02 -28 03 00.8 12 18 12.93 -28 04 46.8 201.7810 15.5286 14.91 92.0 n.a. n.a. n.a. 1.0831804065 13.72198 0.1096766771 14.76949 0.912153 32.7849 Hya n.a. n.a. 2005-Mar-08 10:00 12 16 58.70 -28 10 14.4 12 17 15.59 -28 12 00.5 225.7293 3.0723 14.92 92.1 n.a. n.a. n.a. 1.0838412017 13.73176 0.1103916600 14.93520 0.918099 32.7199 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-09 04:00 12 09 09.25 -29 11 24.0 12 09 26.05 -29 13 10.2 150.9058 11.5828 15.04 92.3 n.a. n.a. n.a. 1.0898092670 13.81804 0.1168286821 14.89372 0.971635 32.2618 Hya n.a. n.a. 2005-Mar-09 06:00 12 08 16.96 -29 17 41.9 12 08 33.75 -29 19 28.2 177.4590 17.5547 15.06 92.3 n.a. n.a. n.a. 1.0904746735 13.82743 0.1175498143 15.07996 0.977632 32.2150 Hya n.a. n.a. 2005-Mar-09 08:00 12 07 25.14 -29 23 46.2 12 07 41.91 -29 25 32.5 204.4183 13.2203 15.07 92.3 n.a. n.a. n.a. 1.0911405302 13.83678 0.1182801606 15.26910 0.983706 32.1676 Hya n.a. n.a. 2005-Mar-09 10:00 A 12 06 34.35 -29 29 38.0 12 06 51.11 -29 31 24.3 227.4278 0.1160 15.08 92.3 n.a. n.a. n.a. 1.0918068354 13.84609 0.1190188402 15.41965 0.989850 32.1206 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-10 04:00 11 59 38.36 -30 19 39.3 11 59 55.03 -30 21 25.6 154.1041 11.6691 15.20 92.5 n.a. n.a. n.a. 1.0978234750 13.92816 0.1256466807 15.32542 1.044972 31.7957 Hya n.a. n.a. 2005-Mar-10 06:00 11 58 51.81 -30 24 48.3 11 59 08.46 -30 26 34.7 180.5053 16.4794 15.22 92.5 n.a. n.a. n.a. 1.0984941666 13.93709 0.1263885242 15.50651 1.051141 31.7625 Hya n.a. n.a. 2005-Mar-10 08:00 11 58 05.72 -30 29 45.3 11 58 22.36 -30 31 31.8 206.7461 11.1496 15.23 92.5 n.a. n.a. n.a. 1.0991652863 13.94598 0.1271392058 15.68597 1.057385 31.7284 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-11 04:00 11 51 11.10 -31 15 34.7 11 51 27.62 -31 17 21.1 156.9834 11.7340 15.36 92.6 n.a. n.a. n.a. 1.1058996534 14.03281 0.1346855311 15.69195 1.120145 31.4625 Hya n.a. n.a. 2005-Mar-11 06:00 11 50 29.55 -31 19 48.1 11 50 46.06 -31 21 34.5 183.2258 15.4897 15.37 92.7 n.a. n.a. n.a. 1.1065753676 14.04129 0.1354449329 15.86857 1.126461 31.4388 Hya n.a. n.a. 2005-Mar-11 08:00 11 49 48.46 -31 23 50.7 11 50 04.96 -31 25 37.2 208.8272 9.2807 15.39 92.7 n.a. n.a. n.a. 1.1072514883 14.04973 0.1362128562 16.03944 1.132848 31.4141 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-12 02:00 11 44 16.34 -31 57 54.0 11 44 32.74 -31 59 40.3 136.6878 0.1389 15.50 92.8 n.a. n.a. n.a. 1.1133545991 14.12408 0.1431455547 15.86667 1.190505 31.2380 Hya n.a. n.a. 2005-Mar-12 04:00 11 43 39.20 -32 01 31.5 11 43 55.59 -32 03 17.9 159.5968 11.7829 15.51 92.8 n.a. n.a. n.a. 1.1140346935 14.13216 0.1439123640 16.00818 1.196883 31.2224 Hya n.a. n.a. 2005-Mar-12 06:00 11 43 02.02 -32 04 59.7 11 43 18.40 -32 06 46.1 185.6786 14.5763 15.53 92.8 n.a. n.a. n.a. 1.1147151754 14.14020 0.1446868885 16.18081 1.203324 31.2055 Hya n.a. n.a. 2005-Mar-12 08:00 11 42 25.29 -32 08 18.2 11 42 41.66 -32 10 04.7 210.7085 7.5832 15.54 92.8 n.a. n.a. n.a. 1.1153960430 14.14821 0.1454696639 16.34392 1.209834 31.1875 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-13 02:00 m 11 37 28.92 -32 36 21.2 11 37 45.19 -32 38 07.5 138.9066 0.9339 15.65 92.8 n.a. n.a. n.a. 1.1215409439 14.21870 0.1525216804 16.14349 1.268484 31.0585 Hya n.a. n.a. 2005-Mar-13 04:00 11 36 55.58 -32 39 21.0 11 37 11.85 -32 41 07.2 161.9867 11.8197 15.66 92.8 n.a. n.a. n.a. 1.1222255791 14.22636 0.1533017806 16.28511 1.274972 31.0477 Hya n.a. n.a. 2005-Mar-13 06:00 11 36 22.23 -32 42 12.2 11 36 38.49 -32 43 58.5 187.9096 13.7302 15.67 92.8 n.a. n.a. n.a. 1.1229105815 14.23398 0.1540895322 16.45417 1.281524 31.0356 Hya n.a. n.a. 2005-Mar-13 08:00 11 35 49.32 -32 44 54.6 11 36 05.56 -32 46 41.0 212.4263 6.0313 15.69 92.8 n.a. n.a. n.a. 1.1235959493 14.24157 0.1548852994 16.61026 1.288142 31.0222 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-14 02:00 m 11 31 24.19 -33 08 02.0 11 31 40.35 -33 09 48.2 140.9458 1.6748 15.79 92.9 n.a. n.a. n.a. 1.1297804497 14.30832 0.1620421204 16.38912 1.347663 30.9262 Hya n.a. n.a. 2005-Mar-14 04:00 11 30 54.20 -33 10 30.6 11 31 10.35 -33 12 16.8 164.1880 11.8467 15.81 92.9 n.a. n.a. n.a. 1.1304693855 14.31557 0.1628340102 16.53100 1.354249 30.9188 Hya n.a. n.a. 2005-Mar-14 06:00 11 30 24.20 -33 12 51.3 11 30 40.34 -33 14 37.6 189.9549 12.9430 15.82 92.9 n.a. n.a. n.a. 1.1311586686 14.32279 0.1636335024 16.69689 1.360898 30.9102 Hya n.a. n.a. 2005-Mar-14 08:00 11 29 54.64 -33 15 04.1 11 30 10.77 -33 16 50.4 214.0084 4.6036 15.83 92.9 n.a. n.a. n.a. 1.1318482976 14.32997 0.1644408035 16.84670 1.367612 30.9002 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-15 02:00 m 11 25 56.92 -33 34 07.3 11 26 12.97 -33 35 53.4 142.8332 2.3681 15.93 92.9 n.a. n.a. n.a. 1.1380702746 14.39310 0.1716910647 16.60988 1.427911 30.8274 Hya n.a. n.a. 2005-Mar-15 04:00 m 11 25 29.87 -33 36 09.9 11 25 45.92 -33 37 56.1 166.2286 11.8659 15.94 92.9 n.a. n.a. n.a. 1.1387632781 14.39995 0.1724935604 16.75219 1.434585 30.8224 Hya n.a. n.a. 2005-Mar-15 06:00 11 25 02.84 -33 38 05.3 11 25 18.88 -33 39 51.5 191.8436 12.2070 15.96 92.9 n.a. n.a. n.a. 1.1394566099 14.40677 0.1733036212 16.91534 1.441322 30.8162 Hya n.a. n.a. 2005-Mar-15 08:00 11 24 36.23 -33 39 53.4 11 24 52.26 -33 41 39.7 215.4767 3.2824 15.97 92.9 n.a. n.a. n.a. 1.1401502686 14.41356 0.1741213059 17.05954 1.448123 30.8087 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-16 02:00 m 11 21 02.65 -33 55 33.3 11 21 18.61 -33 57 19.3 144.5914 3.0193 16.07 93.0 n.a. n.a. n.a. 1.1464076658 14.47319 0.1814560617 16.81074 1.509124 30.7524 Hya n.a. n.a. 2005-Mar-16 04:00 m 11 20 38.21 -33 57 14.3 11 20 54.17 -33 59 00.4 168.1318 11.8782 16.08 93.0 n.a. n.a. n.a. 1.1471045116 14.47965 0.1822682259 16.95365 1.515879 30.7491 Hya n.a. n.a. 2005-Mar-16 06:00 11 20 13.80 -33 58 48.5 11 20 29.74 -34 00 34.6 193.5991 11.5159 16.09 93.0 n.a. n.a. n.a. 1.1478016674 14.48609 0.1830879255 17.11447 1.522696 30.7447 Hya n.a. n.a. 2005-Mar-16 08:00 11 19 49.80 -34 00 16.0 11 20 05.74 -34 02 02.2 216.8488 2.0527 16.10 93.0 n.a. n.a. n.a. 1.1484991315 14.49249 0.1839150820 17.25371 1.529575 30.7389 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< 2005-Mar-17 02:00 m 11 16 37.57 -34 13 05.3 11 16 53.44 -34 14 51.3 146.2389 3.6331 16.20 93.0 n.a. n.a. n.a. 1.1547899581 14.54873 0.1913272621 16.99567 1.591220 30.6944 Hya n.a. n.a. 2005-Mar-17 04:00 m 11 16 15.45 -34 14 28.0 11 16 31.31 -34 16 14.1 169.9163 11.8845 16.21 93.0 n.a. n.a. n.a. 1.1554904281 14.55483 0.1921483489 17.13933 1.598049 30.6924 Hya n.a. n.a. 2005-Mar-17 06:00 m 11 15 53.36 -34 15 44.4 11 16 09.22 -34 17 30.5 195.2404 10.8638 16.22 93.0 n.a. n.a. n.a. 1.1561911901 14.56089 0.1929769475 17.29820 1.604940 30.6892 Hya n.a. n.a. 2005-Mar-17 08:00 11 15 31.69 -34 16 54.6 11 15 47.53 -34 18 40.8 218.1385 0.9022 16.23 93.0 n.a. n.a. n.a. 1.1568922428 14.56693 0.1938128502 17.43303 1.611892 30.6847 Hya n.a. n.a. >..... Elevation Cut-off Requested .....< ************************************************************************************************************************************************************************************************************************** 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. The uniform Coordinate Time scale is used internally. 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. SOLAR PRESENCE Time tag is followed by a blank, then a solar-presence symbol: '*' 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 The solar-presence symbol is immediately followed by a lunar-presence symbol: 'm' Refracted upper-limb of Moon on or above apparent horizon ' ' Refracted upper-limb of Moon below apparent horizon OR geocentric ephemeris R.A._(ICRF/J2000.0)_DEC = J2000.0 astrometric right ascension and declination of target. Corrected for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f) R.A._(a-apparent)__DEC. = Airless apparent right ascension and declination of the target with respect to the Earth true-equator and the meridian containing the Earth true equinox of date. Corrected for light-time, gravitational deflection of light, stellar aberration, precession & nutation. Units:HMS (HH MM SS.ff) and DMS (DD MM SS.f) Azi_(a-appr)_Elev = Airless apparent azimuth and elevation of target. Corrected for light-time, the gravitational deflection of light, stellar aberration, precession and nutation. Azimuth measured North(0) -> East(90) -> South(180) -> West(270), elevation with respect to plane perpendicular to local zenith direction. TOPOCENTRIC ONLY. Units: DEGREES 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. No values are output for phase angles greater than 120 degrees, since the extrapolation error could be large and unknown. Units: NONE Illu% = Fraction of target circular disk illuminated by Sun (phase), as seen by observer. Units: PERCENT Ang-diam = The equatorial angular width of the target body full disk, if it were fully visible to the observer. Units: ARCSECONDS Ob-lon Ob-lat = Apparent planetographic ("geodetic") longitude and latitude (IAU2000 model) of the center of the target disk seen by the OBSERVER at print-time. Light travel-time from target to observer is taken into account. Units: DEGREES r rdot = Target apparent heliocentric range ("r") and range-rate ("rdot") as seen by observer. Units: AU and KM/S delta deldot = Target apparent range ("delta") and range-rate ("delta-dot") relative to observer. Units: AU and KM/S 1-way_LT = Target 1-way light-time, as seen by observer. The elapsed time since light (observed at print-time) left or reflected off the target. Units: MINUTES S-T-O = Sun-Target-Observer angle; target's apparent PHASE ANGLE as seen at observer's location at print time. Units: DEGREES Cnst = Constellation ID; the 3-letter abbreviation for the constellation name of target's astrometric position, as defined by IAU (1930) boundary delineation. See documentation for list of abbreviations. N.Pole-RA N.Pole-DC ICRF/J2000.0 Right Ascension and Declination (IAU2000 rotation model) of target body's North Pole direction at the time light left the body to be observed at print time. 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 ************************************************************************************************************************************************************************************************************************** JPL/SSD Home Credits/Awards Contact: Webmaster (webmaster@ssd.jpl.nasa.gov)