Ephemeris Generator
Ephemeris Settings
Target Body: *Comet C/Austin (1989 X1 = 1989 X1) [1990.50]*
Observer Location: *Geocentric [Code=500]*
Coordinates: *0 00'00.0''E, 0 00'00.0''N, -6378140. m*
From: *A.D. 1989-12-22 00:00 UT*
To: *A.D. 1990-05-28 00:00 *
Step: *1 day*
Format: *Calendar Date and Time*
Output Quantities: *2-3,9,19-20,23-24*
Ref. Frame, RA/Dec Format: *J2000, HMS*
Apparent Coordinates Model: *Airless*
------------------------------------------------------------------------
HORIZONS Generated Ephemeris
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Ephemeris / WWW_USER Thu Feb 24 05:53:25 2005 Pasadena, USA / Horizons
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Target body name: Austin (C/1989 X1) {source: JPL#2}
Center body name: Earth (399) {source: DE-0406LE-0406}
Center-site name: GEOCENTRIC
*******************************************************************************
Start time : A.D. 1989-Dec-22 00:00:00.0000 UT
Stop time : A.D. 1990-May-28 00:00:00.0000 UT
Step-size : 1440 minutes
*******************************************************************************
Center geodetic : 0.000000, 0.0000, 0.0000{E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 0.000000, 0.0000, 0.0000{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.050222.p050511
EOP coverage : DATA-BASED 1962-JAN-20 TO 2005-FEB-22. PREDICTS-> 2005-MAY-10
Units conversion: 1 AU= 149597870.691 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 )
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Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG):
EPOCH= 2448080.5 != 1990-Jul-08.0000000 (CT) Residual RMS= 1.0056
EC= 1.000223109484295 QR= .3497781818225528 TP= 2447991.467392184
OM= 75.92511133643816 W= 61.57681236020007 IN= 58.95672726156277
Comet physical & dynamic parameters (KM, SEC; A1,A2,A3=AU/d^2; DT=days):
GM= n.a. RAD= n.a. A1= n.a.
A2= n.a. A3= n.a. DT= n.a.
M1= n.a. M2= n.a. k1= n.a.
k2= n.a. PHCOF= n.a.
****************************************************************************************************************************************************
Date__(UT)__HR:MN R.A.__(a-apparent)__DEC dRA*cosD d(DEC)/dt T-mag N-mag r rdot delta deldot S-O-T /r S-T-O
****************************************************************************************************************************************************
1989-Dec-22 00:00 00 35 39.96 -56 35 47.9 -14.46 59.27 n.a. n.a. 2.2139172413 -25.98772 2.2499356361 -11.76025 75.2330 /T 25.4439
1989-Dec-23 00:00 00 34 59.59 -56 11 56.2 -13.43 60.02 n.a. n.a. 2.1988870105 -26.05961 2.2431346080 -11.79419 74.7069 /T 25.5612
1989-Dec-24 00:00 00 34 22.59 -55 47 46.7 -12.40 60.76 n.a. n.a. 2.1838150404 -26.13226 2.2363129546 -11.83168 74.1796 /T 25.6784
1989-Dec-25 00:00 00 33 48.90 -55 23 19.6 -11.37 61.48 n.a. n.a. 2.1687008887 -26.20568 2.2294686209 -11.87273 73.6513 /T 25.7955
1989-Dec-26 00:00 00 33 18.44 -54 58 35.3 -10.34 62.19 n.a. n.a. 2.1535441061 -26.27989 2.2225995581 -11.91732 73.1220 /T 25.9125
1989-Dec-27 00:00 00 32 51.14 -54 33 34.1 -9.32 62.89 n.a. n.a. 2.1383442351 -26.35489 2.2157037262 -11.96543 72.5917 /T 26.0294
1989-Dec-28 00:00 00 32 26.95 -54 08 16.3 -8.29 63.58 n.a. n.a. 2.1231008104 -26.43071 2.2087791005 -12.01703 72.0605 /T 26.1463
1989-Dec-29 00:00 00 32 05.78 -53 42 42.2 -7.27 64.25 n.a. n.a. 2.1078133585 -26.50735 2.2018236786 -12.07207 71.5284 /T 26.2631
1989-Dec-30 00:00 00 31 47.57 -53 16 52.1 -6.25 64.91 n.a. n.a. 2.0924813977 -26.58484 2.1948354899 -12.13049 70.9956 /T 26.3798
1989-Dec-31 00:00 00 31 32.24 -52 50 46.2 -5.24 65.57 n.a. n.a. 2.0771044376 -26.66318 2.1878126061 -12.19221 70.4620 /T 26.4966
1990-Jan-01 00:00 00 31 19.74 -52 24 24.7 -4.23 66.21 n.a. n.a. 2.0616818000 -26.74240 2.1807530700 -12.25712 69.9278 /T 26.6133
1990-Jan-02 00:00 00 31 09.98 -51 57 47.9 -3.23 66.85 n.a. n.a. 2.0462133346 -26.82250 2.1736552355 -12.32510 69.3928 /T 26.7300
1990-Jan-03 00:00 00 31 02.90 -51 30 55.9 -2.23 67.47 n.a. n.a. 2.0306983464 -26.90350 2.1665172839 -12.39602 68.8573 /T 26.8468
1990-Jan-04 00:00 00 30 58.44 -51 03 48.9 -1.23 68.10 n.a. n.a. 2.0151363090 -26.98542 2.1593375582 -12.46974 68.3211 /T 26.9636
1990-Jan-05 00:00 00 30 56.53 -50 36 27.1 -0.25 68.71 n.a. n.a. 1.9995266864 -27.06828 2.1521144853 -12.54610 67.7844 /T 27.0805
1990-Jan-06 00:00 00 30 57.11 -50 08 50.5 0.73 69.33 n.a. n.a. 1.9838689340 -27.15209 2.1448465775 -12.62497 67.2471 /T 27.1976
1990-Jan-07 00:00 00 31 00.11 -49 40 59.1 1.71 69.93 n.a. n.a. 1.9681624966 -27.23687 2.1375324270 -12.70622 66.7092 /T 27.3148
1990-Jan-08 00:00 00 31 05.48 -49 12 53.2 2.68 70.54 n.a. n.a. 1.9524068091 -27.32264 2.1301706968 -12.78972 66.1708 /T 27.4321
1990-Jan-09 00:00 00 31 13.16 -48 44 32.7 3.64 71.15 n.a. n.a. 1.9366012961 -27.40941 2.1227601053 -12.87541 65.6319 /T 27.5497
1990-Jan-10 00:00 00 31 23.09 -48 15 57.6 4.60 71.75 n.a. n.a. 1.9207453718 -27.49721 2.1152994062 -12.96324 65.0924 /T 27.6676
1990-Jan-11 00:00 00 31 35.21 -47 47 08.0 5.55 72.36 n.a. n.a. 1.9048384398 -27.58604 2.1077873662 -13.05321 64.5524 /T 27.7857
1990-Jan-12 00:00 00 31 49.47 -47 18 03.8 6.49 72.97 n.a. n.a. 1.8888798929 -27.67594 2.1002227456 -13.14533 64.0118 /T 27.9041
1990-Jan-13 00:00 00 32 05.82 -46 48 45.0 7.44 73.58 n.a. n.a. 1.8728691122 -27.76692 2.0926042826 -13.23967 63.4707 /T 28.0228
1990-Jan-14 00:00 00 32 24.20 -46 19 11.5 8.38 74.19 n.a. n.a. 1.8568054685 -27.85900 2.0849306889 -13.33626 62.9291 /T 28.1419
1990-Jan-15 00:00 00 32 44.58 -45 49 23.3 9.31 74.81 n.a. n.a. 1.8406883205 -27.95220 2.0772006485 -13.43515 62.3870 /T 28.2613
1990-Jan-16 00:00 00 33 06.90 -45 19 20.2 10.24 75.43 n.a. n.a. 1.8245170153 -28.04654 2.0694128242 -13.53636 61.8443 /T 28.3812
1990-Jan-17 00:00 00 33 31.12 -44 49 02.3 11.17 76.05 n.a. n.a. 1.8082908883 -28.14204 2.0615658651 -13.63993 61.3010 /T 28.5014
1990-Jan-18 00:00 00 33 57.21 -44 18 29.2 12.09 76.68 n.a. n.a. 1.7920092624 -28.23872 2.0536584143 -13.74584 60.7573 /T 28.6221
1990-Jan-19 00:00 00 34 25.12 -43 47 41.1 13.01 77.32 n.a. n.a. 1.7756714488 -28.33661 2.0456891153 -13.85410 60.2130 /T 28.7433
1990-Jan-20 00:00 00 34 54.82 -43 16 37.6 13.92 77.96 n.a. n.a. 1.7592767458 -28.43573 2.0376566160 -13.96470 59.6681 /T 28.8649
1990-Jan-21 00:00 00 35 26.26 -42 45 18.7 14.83 78.60 n.a. n.a. 1.7428244396 -28.53609 2.0295595707 -14.07762 59.1227 /T 28.9872
1990-Jan-22 00:00 00 35 59.42 -42 13 44.1 15.74 79.25 n.a. n.a. 1.7263138029 -28.63772 2.0213966408 -14.19285 58.5768 /T 29.1099
1990-Jan-23 00:00 00 36 34.24 -41 41 53.8 16.64 79.91 n.a. n.a. 1.7097440960 -28.74064 2.0131664961 -14.31038 58.0302 /T 29.2333
1990-Jan-24 00:00 00 37 10.69 -41 09 47.6 17.54 80.58 n.a. n.a. 1.6931145663 -28.84488 2.0048678157 -14.43018 57.4831 /T 29.3573
1990-Jan-25 00:00 00 37 48.75 -40 37 25.2 18.43 81.26 n.a. n.a. 1.6764244479 -28.95045 1.9964992917 -14.55223 56.9354 /T 29.4820
1990-Jan-26 00:00 00 38 28.36 -40 04 46.5 19.31 81.94 n.a. n.a. 1.6596729615 -29.05739 1.9880596344 -14.67650 56.3870 /T 29.6073
1990-Jan-27 00:00 00 39 09.50 -39 31 51.2 20.20 82.64 n.a. n.a. 1.6428593146 -29.16571 1.9795475841 -14.80291 55.8380 /T 29.7335
1990-Jan-28 00:00 00 39 52.12 -38 58 39.2 21.07 83.34 n.a. n.a. 1.6259827016 -29.27543 1.9709619238 -14.93138 55.2883 /T 29.8604
1990-Jan-29 00:00 00 40 36.20 -38 25 10.1 21.94 84.06 n.a. n.a. 1.6090423037 -29.38659 1.9623014951 -15.06180 54.7379 /T 29.9882
1990-Jan-30 00:00 00 41 21.69 -37 51 23.7 22.80 84.79 n.a. n.a. 1.5920372883 -29.49920 1.9535652126 -15.19403 54.1868 /T 30.1168
1990-Jan-31 00:00 00 42 08.58 -37 17 19.6 23.66 85.53 n.a. n.a. 1.5749668102 -29.61328 1.9447520769 -15.32790 53.6349 /T 30.2464
1990-Feb-01 00:00 00 42 56.81 -36 42 57.6 24.51 86.29 n.a. n.a. 1.5578300114 -29.72886 1.9358611818 -15.46327 53.0821 /T 30.3771
1990-Feb-02 00:00 00 43 46.37 -36 08 17.2 25.35 87.06 n.a. n.a. 1.5406260203 -29.84596 1.9268917131 -15.59996 52.5285 /T 30.5087
1990-Feb-03 00:00 00 44 37.23 -35 33 18.2 26.19 87.84 n.a. n.a. 1.5233539535 -29.96461 1.9178429443 -15.73785 51.9740 /T 30.6415
1990-Feb-04 00:00 00 45 29.35 -34 57 60.0 27.02 88.65 n.a. n.a. 1.5060129159 -30.08481 1.9087142252 -15.87680 51.4184 /T 30.7755
1990-Feb-05 00:00 00 46 22.71 -34 22 22.2 27.84 89.47 n.a. n.a. 1.4886019996 -30.20659 1.8995049660 -16.01673 50.8618 /T 30.9107
1990-Feb-06 00:00 00 47 17.27 -33 46 24.4 28.65 90.32 n.a. n.a. 1.4711202864 -30.32998 1.8902146200 -16.15758 50.3040 /T 31.0473
1990-Feb-07 00:00 00 48 13.01 -33 10 06.0 29.46 91.18 n.a. n.a. 1.4535668483 -30.45498 1.8808426632 -16.29933 49.7451 /T 31.1851
1990-Feb-08 00:00 00 49 09.90 -32 33 26.7 30.27 92.07 n.a. n.a. 1.4359407466 -30.58161 1.8713885727 -16.44200 49.1848 /T 31.3245
1990-Feb-09 00:00 00 50 07.91 -31 56 25.8 31.06 92.98 n.a. n.a. 1.4182410347 -30.70989 1.8618518077 -16.58562 48.6232 /T 31.4652
1990-Feb-10 00:00 00 51 07.02 -31 19 02.7 31.86 93.92 n.a. n.a. 1.4004667596 -30.83983 1.8522317938 -16.73028 48.0602 /T 31.6076
1990-Feb-11 00:00 00 52 07.21 -30 41 16.8 32.64 94.88 n.a. n.a. 1.3826169608 -30.97143 1.8425279093 -16.87606 47.4957 /T 31.7515
1990-Feb-12 00:00 00 53 08.46 -30 03 07.6 33.42 95.87 n.a. n.a. 1.3646906749 -31.10471 1.8327394810 -17.02305 46.9295 /T 31.8970
1990-Feb-13 00:00 00 54 10.74 -29 24 34.4 34.20 96.88 n.a. n.a. 1.3466869358 -31.23966 1.8228657812 -17.17135 46.3618 /T 32.0443
1990-Feb-14 00:00 00 55 14.05 -28 45 36.4 34.97 97.93 n.a. n.a. 1.3286047776 -31.37628 1.8129060295 -17.32104 45.7922 /T 32.1933
1990-Feb-15 00:00 00 56 18.35 -28 06 12.9 35.73 99.00 n.a. n.a. 1.3104432371 -31.51457 1.8028593950 -17.47222 45.2209 /T 32.3442
1990-Feb-16 00:00 00 57 23.63 -27 26 23.4 36.48 100.11 n.a. n.a. 1.2922013568 -31.65451 1.7927249981 -17.62495 44.6477 /T 32.4970
1990-Feb-17 00:00 00 58 29.88 -26 46 06.8 37.23 101.25 n.a. n.a. 1.2738781888 -31.79608 1.7825019103 -17.77934 44.0725 /T 32.6518
1990-Feb-18 00:00 00 59 37.06 -26 05 22.6 37.97 102.42 n.a. n.a. 1.2554727986 -31.93925 1.7721891519 -17.93547 43.4953 /T 32.8086
1990-Feb-19 00:00 01 00 45.16 -25 24 09.8 38.70 103.62 n.a. n.a. 1.2369842701 -32.08400 1.7617856871 -18.09345 42.9160 /T 32.9675
1990-Feb-20 00:00 01 01 54.16 -24 42 27.7 39.42 104.86 n.a. n.a. 1.2184117112 -32.23027 1.7512904173 -18.25338 42.3345 /T 33.1287
1990-Feb-21 00:00 01 03 04.03 -24 00 15.2 40.14 106.14 n.a. n.a. 1.1997542600 -32.37800 1.7407021736 -18.41541 41.7508 /T 33.2921
1990-Feb-22 00:00 01 04 14.75 -23 17 31.6 40.84 107.46 n.a. n.a. 1.1810110924 -32.52712 1.7300197094 -18.57966 41.1647 /T 33.4580
1990-Feb-23 00:00 01 05 26.29 -22 34 15.8 41.52 108.83 n.a. n.a. 1.1621814307 -32.67754 1.7192416960 -18.74628 40.5764 /T 33.6264
1990-Feb-24 00:00 01 06 38.64 -21 50 26.8 42.20 110.23 n.a. n.a. 1.1432645534 -32.82916 1.7083667209 -18.91542 39.9855 /T 33.7975
1990-Feb-25 00:00 01 07 51.75 -21 06 03.6 42.85 111.68 n.a. n.a. 1.1242598071 -32.98185 1.6973932928 -19.08720 39.3923 /T 33.9714
1990-Feb-26 00:00 01 09 05.61 -20 21 05.2 43.49 113.17 n.a. n.a. 1.1051666193 -33.13545 1.6863198493 -19.26175 38.7965 /T 34.1482
1990-Feb-27 00:00 01 10 20.18 -19 35 30.3 44.12 114.72 n.a. n.a. 1.0859845141 -33.28979 1.6751447674 -19.43915 38.1982 /T 34.3282
1990-Feb-28 00:00 01 11 35.43 -18 49 17.7 44.72 116.31 n.a. n.a. 1.0667131303 -33.44464 1.6638663700 -19.61949 37.5973 /T 34.5115
1990-Mar-01 00:00 01 12 51.33 -18 02 26.2 45.29 117.96 n.a. n.a. 1.0473522419 -33.59976 1.6524829229 -19.80290 36.9938 /T 34.6984
1990-Mar-02 00:00 01 14 07.85 -17 14 54.5 45.85 119.67 n.a. n.a. 1.0279017822 -33.75484 1.6409926183 -19.98951 36.3877 /T 34.8891
1990-Mar-03 00:00 01 15 24.93 -16 26 41.0 46.37 121.43 n.a. n.a. 1.0083618724 -33.90954 1.6293935454 -20.17955 35.7791 /T 35.0839
1990-Mar-04 00:00 01 16 42.56 -15 37 44.4 46.87 123.26 n.a. n.a. 0.9887328537 -34.06344 1.6176836483 -20.37329 35.1679 /T 35.2832
1990-Mar-05 00:00 01 18 00.66 -14 48 03.2 47.33 125.15 n.a. n.a. 0.9690153261 -34.21606 1.6058606774 -20.57112 34.5542 /T 35.4872
1990-Mar-06 00:00 01 19 19.21 -13 57 35.6 47.76 127.12 n.a. n.a. 0.9492101924 -34.36682 1.5939221353 -20.77353 33.9381 /T 35.6966
1990-Mar-07 00:00 01 20 38.13 -13 06 20.1 48.14 129.15 n.a. n.a. 0.9293187112 -34.51507 1.5818652202 -20.98108 33.3197 /T 35.9116
1990-Mar-08 00:00 01 21 57.39 -12 14 14.8 48.49 131.26 n.a. n.a. 0.9093425574 -34.66003 1.5696867675 -21.19445 32.6992 /T 36.1330
1990-Mar-09 00:00 01 23 16.90 -11 21 18.0 48.79 133.45 n.a. n.a. 0.8892838946 -34.80078 1.5573831876 -21.41444 32.0768 /T 36.3614
1990-Mar-10 00:00 01 24 36.62 -10 27 27.6 49.04 135.72 n.a. n.a. 0.8691454594 -34.93625 1.5449504016 -21.64196 31.4526 /T 36.5975
1990-Mar-11 00:00 01 25 56.46 -09 32 41.7 49.23 138.08 n.a. n.a. 0.8489306611 -35.06517 1.5323837724 -21.87802 30.8271 /T 36.8423
1990-Mar-12 00:00 01 27 16.34 -08 36 58.2 49.36 140.53 n.a. n.a. 0.8286437000 -35.18608 1.5196780325 -22.12379 30.2006 /T 37.0969
1990-Mar-13 00:00 01 28 36.17 -07 40 14.9 49.41 143.07 n.a. n.a. 0.8082897056 -35.29721 1.5068272045 -22.38057 29.5737 /T 37.3625
1990-Mar-14 00:00 01 29 55.84 -06 42 29.4 49.39 145.70 n.a. n.a. 0.7878749019 -35.39652 1.4938245166 -22.64980 28.9469 /T 37.6407
1990-Mar-15 00:00 01 31 15.25 -05 43 39.6 49.27 148.43 n.a. n.a. 0.7674068039 -35.48159 1.4806623097 -22.93313 28.3208 /T 37.9332
1990-Mar-16 00:00 01 32 34.25 -04 43 42.8 49.05 151.27 n.a. n.a. 0.7468944495 -35.54956 1.4673319317 -23.23234 27.6965 /T 38.2423
1990-Mar-17 00:00 01 33 52.69 -03 42 36.8 48.71 154.21 n.a. n.a. 0.7263486766 -35.59703 1.4538236212 -23.54949 27.0747 /T 38.5705
1990-Mar-18 00:00 01 35 10.40 -02 40 18.9 48.24 157.26 n.a. n.a. 0.7057824543 -35.62001 1.4401263756 -23.88684 26.4568 /T 38.9209
1990-Mar-19 00:00 01 36 27.17 -01 36 46.6 47.62 160.41 n.a. n.a. 0.6852112763 -35.61373 1.4262278034 -24.24693 25.8440 /T 39.2973
1990-Mar-20 00:00 01 37 42.78 -00 31 57.3 46.82 163.67 n.a. n.a. 0.6646536309 -35.57257 1.4121139611 -24.63259 25.2380 /T 39.7040
1990-Mar-21 00:00 01 38 56.94 +00 34 11.6 45.83 167.04 n.a. n.a. 0.6441315628 -35.48981 1.3977691759 -25.04699 24.6407 /T 40.1465
1990-Mar-22 00:00 01 40 09.36 +01 41 42.5 44.62 170.51 n.a. n.a. 0.6236713407 -35.35751 1.3831758576 -25.49360 24.0541 /T 40.6311
1990-Mar-23 00:00 01 41 19.68 +02 50 37.9 43.15 174.07 n.a. n.a. 0.6033042521 -35.16620 1.3683143063 -25.97624 23.4809 /T 41.1654
1990-Mar-24 00:00 01 42 27.48 +04 00 59.7 41.39 177.71 n.a. n.a. 0.5830675437 -34.90467 1.3531625266 -26.49903 22.9239 /T 41.7588
1990-Mar-25 00:00 01 43 32.29 +05 12 49.8 39.29 181.43 n.a. n.a. 0.5630055288 -34.55962 1.3376960650 -27.06635 22.3862 /T 42.4219
1990-Mar-26 00:00 01 44 33.54 +06 26 09.6 36.81 185.18 n.a. n.a. 0.5431708759 -34.11536 1.3218878900 -27.68272 21.8716 /T 43.1678
1990-Mar-27 00:00 01 45 30.59 +07 40 59.8 33.89 188.95 n.a. n.a. 0.5236260944 -33.55347 1.3057083478 -28.35266 21.3842 /T 44.0115
1990-Mar-28 00:00 01 46 22.71 +08 57 20.0 30.48 192.68 n.a. n.a. 0.5044452068 -32.85246 1.2891252269 -29.08047 20.9283 /T 44.9704
1990-Mar-29 00:00 01 47 09.01 +10 15 08.9 26.49 196.32 n.a. n.a. 0.4857155810 -31.98759 1.2721039866 -29.86984 20.5089 /T 46.0647
1990-Mar-30 00:00 01 47 48.52 +11 34 23.2 21.88 199.79 n.a. n.a. 0.4675398447 -30.93079 1.2546082173 -30.72344 20.1309 /T 47.3167
1990-Mar-31 00:00 01 48 20.09 +12 54 57.9 16.56 202.99 n.a. n.a. 0.4500377444 -29.65095 1.2366004365 -31.64219 19.7996 /T 48.7509
1990-Apr-01 00:00 01 48 42.44 +14 16 44.9 10.46 205.79 n.a. n.a. 0.4333477014 -28.11469 1.2180433363 -32.62438 19.5203 /T 50.3929
1990-Apr-02 00:00 01 48 54.14 +15 39 32.9 3.52 208.05 n.a. n.a. 0.4176277013 -26.28798 1.1989016304 -33.66451 19.2976 /T 52.2681
1990-Apr-03 00:00 01 48 53.60 +17 03 06.7 -4.31 209.57 n.a. n.a. 0.4030549881 -24.13871 1.1791446119 -34.75201 19.1361 /T 54.3999
1990-Apr-04 00:00 01 48 39.16 +18 27 06.2 -13.02 210.15 n.a. n.a. 0.3898238955 -21.64054 1.1587494773 -35.86988 19.0390 /T 56.8062
1990-Apr-05 00:00 01 48 09.09 +19 51 06.0 -22.61 209.56 n.a. n.a. 0.3781410744 -18.77805 1.1377053222 -36.99382 19.0088 /T 59.4966
1990-Apr-06 00:00 01 47 21.67 +21 14 35.7 -32.98 207.60 n.a. n.a. 0.3682174837 -15.55271 1.1160174866 -38.09197 19.0465 /T 62.4683
1990-Apr-07 00:00 01 46 15.36 +22 36 59.4 -43.97 204.05 n.a. n.a. 0.3602569156 -11.98868 1.0937116400 -39.12613 19.1516 /T 65.7025
1990-Apr-08 00:00 01 44 48.85 +23 57 37.5 -55.36 198.78 n.a. n.a. 0.3544415965 -8.13680 1.0708367180 -40.05461 19.3225 /T 69.1624
1990-Apr-09 00:00 01 43 01.25 +25 15 48.1 -66.86 191.75 n.a. n.a. 0.3509164524 -4.07494 1.0474657158 -40.83668 19.5565 /T 72.7933
1990-Apr-10 00:00 01 40 52.18 +26 30 49.4 -78.17 183.03 n.a. n.a. 0.3497746122 0.09673 1.0236935500 -41.43813 19.8504 /T 76.5251
1990-Apr-11 00:00 01 38 21.83 +27 42 02.7 -88.95 172.80 n.a. n.a. 0.3510471472 4.26552 0.9996317910 -41.83628 20.2011 /T 80.2786
1990-Apr-12 00:00 01 35 30.98 +28 48 55.0 -98.95 161.33 n.a. n.a. 0.3546994818 8.31909 0.9754009041 -42.02334 20.6055 /T 83.9722
1990-Apr-13 00:00 01 32 20.92 +29 51 00.7 -107.94 148.98 n.a. n.a. 0.3606353821 12.15822 0.9511213732 -42.00690 21.0616 /T 87.5303
1990-Apr-14 00:00 01 28 53.31 +30 48 02.8 -115.81 136.10 n.a. n.a. 0.3687075158 15.70634 0.9269053644 -41.80760 21.5679 /T 90.8888
1990-Apr-15 00:00 01 25 10.08 +31 39 53.2 -122.55 123.05 n.a. n.a. 0.3787320924 18.91400 0.9028503199 -41.45497 22.1241 /L 93.9994
1990-Apr-16 00:00 01 21 13.19 +32 26 31.1 -128.19 110.12 n.a. n.a. 0.3905045849 21.75831 0.8790351942 -40.98270 22.7303 /L 96.8305
1990-Apr-17 00:00 01 17 04.60 +33 08 02.6 -132.85 97.55 n.a. n.a. 0.4038140014 24.23881 0.8555193138 -40.42444 23.3870 /L 99.3659
1990-Apr-18 00:00 01 12 46.05 +33 44 38.0 -136.66 85.48 n.a. n.a. 0.4184541785 26.37159 0.8323433228 -39.81083 24.0950 /L 101.6021
1990-Apr-19 00:00 01 08 19.12 +34 16 31.1 -139.78 74.03 n.a. n.a. 0.4342316059 28.18337 0.8095314703 -39.16780 24.8555 /L 103.5455
1990-Apr-20 00:00 01 03 45.08 +34 43 57.1 -142.39 63.24 n.a. n.a. 0.4509700395 29.70643 0.7870945362 -38.51600 25.6691 /L 105.2090
1990-Apr-21 00:00 00 59 04.94 +35 07 12.1 -144.62 53.11 n.a. n.a. 0.4685125520 30.97482 0.7650328680 -37.87096 26.5368 /L 106.6099
1990-Apr-22 00:00 00 54 19.46 +35 26 31.8 -146.62 43.63 n.a. n.a. 0.4867217581 32.02180 0.7433391996 -37.24363 27.4592 /L 107.7669
1990-Apr-23 00:00 00 49 29.12 +35 42 11.1 -148.53 34.74 n.a. n.a. 0.5054788781 32.87834 0.7220010910 -36.64108 28.4372 /L 108.6995
1990-Apr-24 00:00 00 44 34.17 +35 54 23.6 -150.46 26.39 n.a. n.a. 0.5246821553 33.57233 0.7010029424 -36.06730 29.4715 /L 109.4263
1990-Apr-25 00:00 00 39 34.62 +36 03 21.4 -152.53 18.50 n.a. n.a. 0.5442449905 34.12836 0.6803275976 -35.52379 30.5629 /L 109.9648
1990-Apr-26 00:00 00 34 30.32 +36 09 14.8 -154.82 11.01 n.a. n.a. 0.5640940281 34.56774 0.6599575838 -35.01023 31.7124 /L 110.3306
1990-Apr-27 00:00 00 29 20.87 +36 12 12.1 -157.44 3.82 n.a. n.a. 0.5841673313 34.90873 0.6398760403 -34.52490 32.9215 /L 110.5373
1990-Apr-28 00:00 00 24 05.76 +36 12 19.8 -160.46 -3.14 n.a. n.a. 0.6044127185 35.16691 0.6200673961 -34.06510 34.1916 /L 110.5966
1990-Apr-29 00:00 00 18 44.27 +36 09 42.3 -163.97 -9.97 n.a. n.a. 0.6247862899 35.35546 0.6005178587 -33.62742 35.5248 /L 110.5183
1990-Apr-30 00:00 00 13 15.56 +36 04 21.8 -168.04 -16.74 n.a. n.a. 0.6452511470 35.48549 0.5812157742 -33.20788 36.9237 /L 110.3099
1990-May-01 00:00 00 07 38.63 +35 56 18.5 -172.77 -23.55 n.a. n.a. 0.6657762962 35.56638 0.5621519140 -32.80207 38.3912 /L 109.9773
1990-May-02 00:00 00 01 52.34 +35 45 30.1 -178.22 -30.50 n.a. n.a. 0.6863357157 35.60603 0.5433197299 -32.40512 39.9312 /L 109.5245
1990-May-03 00:00 23 55 55.38 +35 31 52.1 -184.50 -37.71 n.a. n.a. 0.7069075688 35.61107 0.5247156079 -32.01174 41.5481 /L 108.9537
1990-May-04 00:00 23 49 46.33 +35 15 17.1 -191.70 -45.27 n.a. n.a. 0.7274735418 35.58710 0.5063391433 -31.61610 43.2472 /L 108.2654
1990-May-05 00:00 23 43 23.60 +34 55 34.8 -199.92 -53.33 n.a. n.a. 0.7480182878 35.53882 0.4881934538 -31.21180 45.0347 /L 107.4582
1990-May-06 00:00 23 36 45.42 +34 32 31.7 -209.28 -62.03 n.a. n.a. 0.7685289612 35.47023 0.4702855462 -30.79177 46.9177 /L 106.5293
1990-May-07 00:00 23 29 49.90 +34 05 50.7 -219.89 -71.53 n.a. n.a. 0.7889948276 35.38467 0.4526267542 -30.34808 48.9049 /L 105.4739
1990-May-08 00:00 23 22 34.97 +33 35 10.5 -231.89 -82.00 n.a. n.a. 0.8094069360 35.28498 0.4352332642 -29.87182 51.0057 /L 104.2854
1990-May-09 00:00 23 14 58.40 +33 00 05.2 -245.40 -93.65 n.a. n.a. 0.8297578444 35.17356 0.4181267469 -29.35288 53.2314 /L 102.9556
1990-May-10 00:00 23 06 57.82 +32 20 03.8 -260.57 -106.71 n.a. n.a. 0.8500413893 35.05246 0.4013351137 -28.77972 55.5946 /L 101.4740
1990-May-11 00:00 22 58 30.72 +31 34 29.6 -277.54 -121.43 n.a. n.a. 0.8702524914 34.92340 0.3848934134 -28.13912 58.1096 /L 99.8285
1990-May-12 00:00 22 49 34.53 +30 42 39.8 -296.42 -138.07 n.a. n.a. 0.8903869921 34.78786 0.3688448812 -27.41591 60.7926 /L 98.0046
1990-May-13 00:00 22 40 06.60 +29 43 44.6 -317.34 -156.92 n.a. n.a. 0.9104415153 34.64708 0.3532421400 -26.59272 63.6612 /L 95.9861
1990-May-14 00:00 22 30 04.33 +28 36 47.9 -340.35 -178.24 n.a. n.a. 0.9304133510 34.50213 0.3381485360 -25.64977 66.7350 /L 93.7549
1990-May-15 00:00 22 19 25.25 +27 20 47.5 -365.45 -202.28 n.a. n.a. 0.9503003559 34.35392 0.3236395582 -24.56479 70.0347 /L 91.2913
1990-May-16 00:00 22 08 07.16 +25 54 35.9 -392.54 -229.18 n.a. n.a. 0.9701008696 34.20322 0.3098042393 -23.31320 73.5819 /L 88.5748
1990-May-17 00:00 21 56 08.32 +24 17 03.8 -421.40 -258.98 n.a. n.a. 0.9898136432 34.05070 0.2967463611 -21.86864 77.3976 /L 85.5850
1990-May-18 00:00 21 43 27.63 +22 27 03.9 -451.59 -291.45 n.a. n.a. 1.0094377787 33.89691 0.2845851790 -20.20414 81.5013 /L 82.3034
1990-May-19 00:00 21 30 04.92 +20 23 37.6 -482.45 -326.06 n.a. n.a. 1.0289726766 33.74233 0.2734552558 -18.29408 85.9085 /L 78.7151
1990-May-20 00:00 21 16 01.17 +18 06 04.4 -513.07 -361.83 n.a. n.a. 1.0484179927 33.58738 0.2635048642 -16.11717 90.6274 /L 74.8122
1990-May-21 00:00 21 01 18.76 +15 34 13.1 -542.22 -397.29 n.a. n.a. 1.0677736000 33.43241 0.2548923452 -13.66057 95.6562 /L 70.5971
1990-May-22 00:00 20 46 01.67 +12 48 34.0 -568.47 -430.45 n.a. n.a. 1.0870395572 33.27770 0.2477798837 -10.92461 100.9789 /L 66.0862
1990-May-23 00:00 20 30 15.54 +09 50 30.1 -590.22 -458.96 n.a. n.a. 1.1062160816 33.12352 0.2423244957 -7.92754 106.5622 /L 61.3129
1990-May-24 00:00 20 14 07.60 +06 42 22.5 -605.93 -480.38 n.a. n.a. 1.1253035269 32.97007 0.2386666782 -4.70859 112.3545 /L 56.3293
1990-May-25 00:00 19 57 46.46 +03 27 27.4 -614.33 -492.62 n.a. n.a. 1.1443023636 32.81754 0.2369180790 -1.32805 118.2864 /L 51.2048
1990-May-26 00:00 19 41 21.67 +00 09 43.5 -614.64 -494.34 n.a. n.a. 1.1632131624 32.66609 0.2371503749 2.13706 124.2755 /L 46.0219
1990-May-27 00:00 19 25 03.15 -03 06 32.1 -606.74 -485.32 n.a. n.a. 1.1820365800 32.51582 0.2393878309 5.60122 130.2332 /L 40.8691
1990-May-28 00:00 19 09 00.63 -06 17 10.8 -591.16 -466.50 n.a. n.a. 1.2007733458 32.36687 0.2436053925 8.98093 136.0734 /L 35.8325
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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.
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)
dRA*cosD d(DEC)/dt =
The rate of change of target apparent RA and DEC (airless). d(RA)/dt is
multiplied by the cosine of the declination. Units: ARCSECONDS PER HOUR
T-mag N-mag =
Comet's approximate apparent visual total magnitude ("T-mag") and nuclear
magnitude ("N-mag") by following definitions:
T-mag = M1 + 5*log10(delta) + k1*log10(r)
N-mag = M2 + 5*log10(delta) + k2*log10(r) + phcof*beta
Units: none
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
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 =
Sun-Target-Observer angle; target's apparent PHASE ANGLE as seen at
observer's location 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
****************************************************************************************************************************************************
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