Ephemeris Generator
Ephemeris Settings
Target Body: *Comet C/Bradfield (1987 P1 = 1987 P1) [1988.25]*
Observer Location: *Geocentric [Code=500]*
Coordinates: *0 00'00.0''E, 0 00'00.0''N, -6378140. m*
From: *A.D. 1987-09-01 00:00 UT*
To: *A.D. 1988-01-26 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*
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HORIZONS Generated Ephemeris
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Ephemeris / WWW_USER Thu Feb 24 05:33:50 2005 Pasadena, USA / Horizons
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Target body name: Bradfield (C/1987 P1) {source: JPL#6}
Center body name: Earth (399) {source: DE-0406LE-0406}
Center-site name: GEOCENTRIC
*******************************************************************************
Start time : A.D. 1987-Sep-01 00:00:00.0000 UT
Stop time : A.D. 1988-Jan-26 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= 2447280.5 != 1988-Apr-29.0000000 (CT) Residual RMS= 1.1298
EC= .9946730400105706 QR= .8688361175134623 TP= 2447106.769765619
OM= 268.0915493983218 W= 73.89163561199061 IN= 34.09228855747239
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
****************************************************************************************************************************************************
1987-Sep-01 00:00 14 43 54.17 -18 42 14.7 64.91 33.65 n.a. n.a. 1.4562558735 -22.09059 1.5318386680 -4.56845 66.2691 /T 39.3806
1987-Sep-02 00:00 14 45 44.67 -18 28 47.2 65.99 33.63 n.a. n.a. 1.4435122888 -22.04297 1.5291422648 -4.76995 65.6450 /T 39.5545
1987-Sep-03 00:00 14 47 36.83 -18 15 20.2 67.06 33.62 n.a. n.a. 1.4307972160 -21.99188 1.5263286406 -4.97432 65.0286 /T 39.7284
1987-Sep-04 00:00 14 49 30.66 -18 01 53.1 68.14 33.63 n.a. n.a. 1.4181127068 -21.93717 1.5233962154 -5.18130 64.4201 /T 39.9024
1987-Sep-05 00:00 14 51 26.14 -17 48 25.6 69.21 33.66 n.a. n.a. 1.4054609052 -21.87866 1.5203435648 -5.39061 63.8195 /T 40.0767
1987-Sep-06 00:00 14 53 23.28 -17 34 57.1 70.29 33.71 n.a. n.a. 1.3928440512 -21.81618 1.5171693993 -5.60206 63.2269 /T 40.2516
1987-Sep-07 00:00 14 55 22.08 -17 21 27.2 71.36 33.78 n.a. n.a. 1.3802644850 -21.74957 1.5138725326 -5.81549 62.6423 /T 40.4272
1987-Sep-08 00:00 14 57 22.53 -17 07 55.4 72.44 33.86 n.a. n.a. 1.3677246514 -21.67863 1.5104518381 -6.03085 62.0659 /T 40.6037
1987-Sep-09 00:00 14 59 24.64 -16 54 21.4 73.52 33.97 n.a. n.a. 1.3552271041 -21.60317 1.5069062049 -6.24815 61.4977 /T 40.7813
1987-Sep-10 00:00 15 01 28.41 -16 40 44.6 74.61 34.09 n.a. n.a. 1.3427745096 -21.52300 1.5032345031 -6.46742 60.9378 /T 40.9603
1987-Sep-11 00:00 15 03 33.85 -16 27 04.6 75.70 34.23 n.a. n.a. 1.3303696525 -21.43791 1.4994355658 -6.68876 60.3864 /T 41.1408
1987-Sep-12 00:00 15 05 40.98 -16 13 20.9 76.79 34.39 n.a. n.a. 1.3180154403 -21.34767 1.4955081880 -6.91220 59.8436 /T 41.3231
1987-Sep-13 00:00 15 07 49.78 -15 59 33.2 77.89 34.57 n.a. n.a. 1.3057149074 -21.25206 1.4914511373 -7.13780 59.3095 /T 41.5074
1987-Sep-14 00:00 15 10 00.26 -15 45 40.9 78.99 34.78 n.a. n.a. 1.2934712207 -21.15086 1.4872631707 -7.36554 58.7843 /T 41.6938
1987-Sep-15 00:00 15 12 12.44 -15 31 43.5 80.10 35.00 n.a. n.a. 1.2812876842 -21.04382 1.4829430528 -7.59541 58.2681 /T 41.8827
1987-Sep-16 00:00 15 14 26.31 -15 17 40.6 81.21 35.24 n.a. n.a. 1.2691677447 -20.93068 1.4784895709 -7.82735 57.7611 /T 42.0743
1987-Sep-17 00:00 15 16 41.87 -15 03 31.7 82.33 35.50 n.a. n.a. 1.2571149965 -20.81119 1.4739015461 -8.06130 57.2634 /T 42.2688
1987-Sep-18 00:00 15 18 59.13 -14 49 16.2 83.45 35.79 n.a. n.a. 1.2451331861 -20.68508 1.4691778413 -8.29718 56.7753 /T 42.4664
1987-Sep-19 00:00 15 21 18.10 -14 34 53.6 84.57 36.09 n.a. n.a. 1.2332262183 -20.55207 1.4643173682 -8.53489 56.2968 /T 42.6675
1987-Sep-20 00:00 15 23 38.78 -14 20 23.4 85.70 36.42 n.a. n.a. 1.2213981614 -20.41187 1.4593190923 -8.77435 55.8283 /T 42.8723
1987-Sep-21 00:00 15 26 01.17 -14 05 45.0 86.83 36.77 n.a. n.a. 1.2096532511 -20.26420 1.4541820376 -9.01544 55.3698 /T 43.0810
1987-Sep-22 00:00 15 28 25.27 -13 50 57.9 87.97 37.15 n.a. n.a. 1.1979958971 -20.10874 1.4489052954 -9.25804 54.9217 /T 43.2940
1987-Sep-23 00:00 15 30 51.10 -13 36 01.5 89.11 37.54 n.a. n.a. 1.1864306870 -19.94517 1.4434880330 -9.50200 54.4840 /T 43.5116
1987-Sep-24 00:00 15 33 18.66 -13 20 55.4 90.26 37.96 n.a. n.a. 1.1749623914 -19.77319 1.4379295067 -9.74717 54.0571 /T 43.7340
1987-Sep-25 00:00 15 35 47.95 -13 05 38.9 91.41 38.40 n.a. n.a. 1.1635959685 -19.59247 1.4322290762 -9.99335 53.6411 /T 43.9614
1987-Sep-26 00:00 15 38 18.98 -12 50 11.5 92.56 38.87 n.a. n.a. 1.1523365683 -19.40266 1.4263862216 -10.24032 53.2363 /T 44.1944
1987-Sep-27 00:00 15 40 51.75 -12 34 32.6 93.72 39.36 n.a. n.a. 1.1411895366 -19.20342 1.4204005597 -10.48782 52.8428 /T 44.4330
1987-Sep-28 00:00 15 43 26.26 -12 18 41.7 94.88 39.87 n.a. n.a. 1.1301604182 -18.99441 1.4142718607 -10.73558 52.4610 /T 44.6777
1987-Sep-29 00:00 15 46 02.53 -12 02 38.2 96.04 40.41 n.a. n.a. 1.1192549605 -18.77527 1.4080000611 -10.98329 52.0911 /T 44.9286
1987-Sep-30 00:00 15 48 40.54 -11 46 21.5 97.21 40.97 n.a. n.a. 1.1084791152 -18.54566 1.4015852758 -11.23065 51.7333 /T 45.1863
1987-Oct-01 00:00 15 51 20.30 -11 29 51.2 98.38 41.55 n.a. n.a. 1.0978390409 -18.30520 1.3950278049 -11.47732 51.3879 /T 45.4508
1987-Oct-02 00:00 15 54 01.82 -11 13 06.6 99.55 42.16 n.a. n.a. 1.0873411032 -18.05354 1.3883281361 -11.72299 51.0550 /T 45.7226
1987-Oct-03 00:00 15 56 45.10 -10 56 07.2 100.73 42.79 n.a. n.a. 1.0769918755 -17.79033 1.3814869416 -11.96734 50.7350 /T 46.0019
1987-Oct-04 00:00 15 59 30.13 -10 38 52.4 101.91 43.44 n.a. n.a. 1.0667981380 -17.51519 1.3745050668 -12.21008 50.4281 /T 46.2890
1987-Oct-05 00:00 16 02 16.94 -10 21 21.8 103.10 44.11 n.a. n.a. 1.0567668753 -17.22780 1.3673835119 -12.45097 50.1346 /T 46.5842
1987-Oct-06 00:00 16 05 05.53 -10 03 34.8 104.30 44.80 n.a. n.a. 1.0469052736 -16.92779 1.3601234075 -12.68981 49.8546 /T 46.8876
1987-Oct-07 00:00 16 07 55.92 -09 45 30.9 105.51 45.51 n.a. n.a. 1.0372207160 -16.61483 1.3527259892 -12.92643 49.5885 /T 47.1995
1987-Oct-08 00:00 16 10 48.11 -09 27 09.7 106.72 46.24 n.a. n.a. 1.0277207761 -16.28860 1.3451925768 -13.16070 49.3366 /T 47.5201
1987-Oct-09 00:00 16 13 42.14 -09 08 30.7 107.94 46.99 n.a. n.a. 1.0184132106 -15.94878 1.3375245647 -13.39248 49.0991 /T 47.8495
1987-Oct-10 00:00 16 16 38.00 -08 49 33.5 109.18 47.76 n.a. n.a. 1.0093059494 -15.59510 1.3297234237 -13.62165 48.8763 /T 48.1880
1987-Oct-11 00:00 16 19 35.72 -08 30 17.6 110.42 48.55 n.a. n.a. 1.0004070845 -15.22727 1.3217907155 -13.84803 48.6685 /T 48.5356
1987-Oct-12 00:00 16 22 35.32 -08 10 42.5 111.68 49.36 n.a. n.a. 0.9917248562 -14.84506 1.3137281134 -14.07140 48.4760 /T 48.8925
1987-Oct-13 00:00 16 25 36.81 -07 50 48.0 112.95 50.18 n.a. n.a. 0.9832676374 -14.44824 1.3055374271 -14.29150 48.2991 /T 49.2586
1987-Oct-14 00:00 16 28 40.21 -07 30 33.5 114.23 51.02 n.a. n.a. 0.9750439159 -14.03665 1.2972206268 -14.50804 48.1380 /T 49.6339
1987-Oct-15 00:00 16 31 45.54 -07 09 58.6 115.52 51.88 n.a. n.a. 0.9670622741 -13.61012 1.2887798649 -14.72068 47.9931 /T 50.0186
1987-Oct-16 00:00 16 34 52.83 -06 49 03.0 116.83 52.75 n.a. n.a. 0.9593313658 -13.16857 1.2802174954 -14.92906 47.8647 /T 50.4123
1987-Oct-17 00:00 16 38 02.10 -06 27 46.3 118.15 53.64 n.a. n.a. 0.9518598916 -12.71192 1.2715360905 -15.13280 47.7529 /T 50.8152
1987-Oct-18 00:00 16 41 13.37 -06 06 08.1 119.49 54.54 n.a. n.a. 0.9446565710 -12.24018 1.2627384552 -15.33146 47.6583 /T 51.2269
1987-Oct-19 00:00 16 44 26.67 -05 44 08.1 120.84 55.45 n.a. n.a. 0.9377301121 -11.75339 1.2538276426 -15.52462 47.5809 /T 51.6472
1987-Oct-20 00:00 16 47 42.04 -05 21 46.0 122.22 56.38 n.a. n.a. 0.9310891793 -11.25166 1.2448069687 -15.71179 47.5211 /T 52.0759
1987-Oct-21 00:00 16 50 59.51 -04 59 01.5 123.61 57.32 n.a. n.a. 0.9247423587 -10.73514 1.2356800304 -15.89249 47.4792 /T 52.5125
1987-Oct-22 00:00 16 54 19.11 -04 35 54.3 125.02 58.27 n.a. n.a. 0.9186981208 -10.20409 1.2264507257 -16.06616 47.4554 /T 52.9566
1987-Oct-23 00:00 16 57 40.89 -04 12 24.2 126.45 59.23 n.a. n.a. 0.9129647817 -9.65879 1.2171232779 -16.23223 47.4499 /T 53.4077
1987-Oct-24 00:00 17 01 04.88 -03 48 31.1 127.90 60.19 n.a. n.a. 0.9075504631 -9.09961 1.2077022622 -16.39005 47.4631 /T 53.8653
1987-Oct-25 00:00 17 04 31.12 -03 24 14.6 129.38 61.16 n.a. n.a. 0.9024630501 -8.52702 1.1981926344 -16.53895 47.4951 /T 54.3287
1987-Oct-26 00:00 17 07 59.68 -02 59 34.8 130.88 62.14 n.a. n.a. 0.8977101485 -7.94152 1.1885997570 -16.67820 47.5461 /T 54.7972
1987-Oct-27 00:00 17 11 30.58 -02 34 31.5 132.41 63.12 n.a. n.a. 0.8932990417 -7.34371 1.1789294228 -16.80703 47.6164 /T 55.2698
1987-Oct-28 00:00 17 15 03.90 -02 09 04.6 133.97 64.11 n.a. n.a. 0.8892366470 -6.73426 1.1691878709 -16.92468 47.7062 /T 55.7459
1987-Oct-29 00:00 17 18 39.67 -01 43 14.1 135.57 65.09 n.a. n.a. 0.8855294731 -6.11391 1.1593817965 -17.03033 47.8156 /T 56.2244
1987-Oct-30 00:00 17 22 17.97 -01 17 00.1 137.20 66.07 n.a. n.a. 0.8821835778 -5.48349 1.1495183539 -17.12320 47.9448 /T 56.7042
1987-Oct-31 00:00 17 25 58.87 -00 50 22.4 138.86 67.05 n.a. n.a. 0.8792045276 -4.84388 1.1396051518 -17.20251 48.0940 /T 57.1843
1987-Nov-01 00:00 17 29 42.44 -00 23 21.4 140.57 68.03 n.a. n.a. 0.8765973597 -4.19602 1.1296502450 -17.26750 48.2632 /T 57.6634
1987-Nov-02 00:00 17 33 28.77 +00 04 03.0 142.33 68.99 n.a. n.a. 0.8743665458 -3.54092 1.1196621218 -17.31743 48.4526 /T 58.1404
1987-Nov-03 00:00 17 37 17.95 +00 31 50.5 144.13 69.95 n.a. n.a. 0.8725159601 -2.87964 1.1096496877 -17.35159 48.6624 /T 58.6138
1987-Nov-04 00:00 17 41 10.07 +01 00 01.0 145.99 70.90 n.a. n.a. 0.8710488504 -2.21329 1.0996222480 -17.36930 48.8925 /T 59.0822
1987-Nov-05 00:00 17 45 05.25 +01 28 34.1 147.90 71.84 n.a. n.a. 0.8699678137 -1.54301 1.0895894934 -17.36991 49.1432 /T 59.5444
1987-Nov-06 00:00 17 49 03.59 +01 57 29.5 149.88 72.76 n.a. n.a. 0.8692747762 -0.86998 1.0795614836 -17.35279 49.4145 /T 59.9986
1987-Nov-07 00:00 17 53 05.22 +02 26 46.9 151.92 73.67 n.a. n.a. 0.8689709784 -0.19540 1.0695486422 -17.31731 49.7064 /T 60.4436
1987-Nov-08 00:00 17 57 10.26 +02 56 25.9 154.02 74.56 n.a. n.a. 0.8690569657 0.47953 1.0595617525 -17.26286 50.0190 /T 60.8776
1987-Nov-09 00:00 18 01 18.85 +03 26 26.1 156.20 75.44 n.a. n.a. 0.8695325837 1.15359 1.0496119597 -17.18879 50.3524 /T 61.2991
1987-Nov-10 00:00 18 05 31.10 +03 56 47.0 158.45 76.29 n.a. n.a. 0.8703969798 1.82558 1.0397107738 -17.09448 50.7066 /T 61.7065
1987-Nov-11 00:00 18 09 47.18 +04 27 28.2 160.77 77.13 n.a. n.a. 0.8716486097 2.49430 1.0298700758 -16.97928 51.0817 /T 62.0982
1987-Nov-12 00:00 18 14 07.22 +04 58 29.1 163.17 77.94 n.a. n.a. 0.8732852492 3.15861 1.0201021199 -16.84254 51.4775 /T 62.4728
1987-Nov-13 00:00 18 18 31.39 +05 29 49.2 165.64 78.72 n.a. n.a. 0.8753040116 3.81736 1.0104195340 -16.68362 51.8942 /T 62.8285
1987-Nov-14 00:00 18 22 59.82 +06 01 27.7 168.20 79.48 n.a. n.a. 0.8777013696 4.46948 1.0008353160 -16.50188 52.3318 /T 63.1640
1987-Nov-15 00:00 18 27 32.70 +06 33 24.0 170.83 80.20 n.a. n.a. 0.8804731816 5.11391 0.9913628286 -16.29669 52.7901 /T 63.4777
1987-Nov-16 00:00 18 32 10.18 +07 05 37.2 173.54 80.89 n.a. n.a. 0.8836147224 5.74968 0.9820157898 -16.06746 53.2691 /T 63.7682
1987-Nov-17 00:00 18 36 52.42 +07 38 06.5 176.34 81.54 n.a. n.a. 0.8871207163 6.37587 0.9728082613 -15.81359 53.7687 /T 64.0341
1987-Nov-18 00:00 18 41 39.59 +08 10 51.0 179.20 82.15 n.a. n.a. 0.8909853753 6.99163 0.9637546345 -15.53453 54.2887 /T 64.2741
1987-Nov-19 00:00 18 46 31.86 +08 43 49.5 182.15 82.71 n.a. n.a. 0.8952024373 7.59616 0.9548696188 -15.22973 54.8291 /T 64.4869
1987-Nov-20 00:00 18 51 29.39 +09 17 00.9 185.16 83.22 n.a. n.a. 0.8997652077 8.18875 0.9461682280 -14.89868 55.3897 /T 64.6715
1987-Nov-21 00:00 18 56 32.35 +09 50 23.8 188.24 83.67 n.a. n.a. 0.9046666019 8.76877 0.9376657696 -14.54089 55.9701 /T 64.8268
1987-Nov-22 00:00 19 01 40.87 +10 23 56.9 191.38 84.06 n.a. n.a. 0.9098991884 9.33566 0.9293778349 -14.15586 56.5702 /T 64.9518
1987-Nov-23 00:00 19 06 55.10 +10 57 38.4 194.57 84.38 n.a. n.a. 0.9154552323 9.88892 0.9213202900 -13.74313 57.1896 /T 65.0456
1987-Nov-24 00:00 19 12 15.19 +11 31 26.6 197.81 84.62 n.a. n.a. 0.9213267383 10.42815 0.9135092631 -13.30226 57.8278 /T 65.1076
1987-Nov-25 00:00 19 17 41.24 +12 05 19.6 201.09 84.77 n.a. n.a. 0.9275054929 10.95299 0.9059611243 -12.83285 58.4846 /T 65.1371
1987-Nov-26 00:00 19 23 13.38 +12 39 15.2 204.40 84.84 n.a. n.a. 0.9339831062 11.46318 0.8986924545 -12.33458 59.1592 /T 65.1336
1987-Nov-27 00:00 19 28 51.68 +13 13 11.0 207.72 84.80 n.a. n.a. 0.9407510510 11.95852 0.8917200052 -11.80718 59.8512 /T 65.0969
1987-Nov-28 00:00 19 34 36.24 +13 47 04.6 211.04 84.65 n.a. n.a. 0.9478007013 12.43886 0.8850606459 -11.25051 60.5599 /T 65.0266
1987-Nov-29 00:00 19 40 27.11 +14 20 53.2 214.36 84.38 n.a. n.a. 0.9551233680 12.90413 0.8787313037 -10.66452 61.2844 /T 64.9227
1987-Nov-30 00:00 19 46 24.34 +14 54 33.8 217.66 83.98 n.a. n.a. 0.9627103330 13.35430 0.8727488966 -10.04928 62.0240 /T 64.7852
1987-Dec-01 00:00 19 52 27.94 +15 28 03.3 220.92 83.45 n.a. n.a. 0.9705528804 13.78940 0.8671302640 -9.40500 62.7778 /T 64.6144
1987-Dec-02 00:00 19 58 37.89 +16 01 18.3 224.13 82.77 n.a. n.a. 0.9786423256 14.20951 0.8618920913 -8.73201 63.5446 /T 64.4105
1987-Dec-03 00:00 20 04 54.17 +16 34 15.4 227.27 81.95 n.a. n.a. 0.9869700420 14.61476 0.8570508334 -8.03077 64.3235 /T 64.1740
1987-Dec-04 00:00 20 11 16.69 +17 06 50.8 230.32 80.97 n.a. n.a. 0.9955274850 15.00530 0.8526226336 -7.30189 65.1132 /T 63.9056
1987-Dec-05 00:00 20 17 45.35 +17 39 00.8 233.26 79.83 n.a. n.a. 1.0043062140 15.38132 0.8486232420 -6.54613 65.9123 /T 63.6059
1987-Dec-06 00:00 20 24 20.01 +18 10 41.4 236.07 78.52 n.a. n.a. 1.0132979108 15.74307 0.8450679336 -5.76438 66.7197 /T 63.2759
1987-Dec-07 00:00 20 31 00.47 +18 41 48.7 238.74 77.05 n.a. n.a. 1.0224943975 16.09079 0.8419714229 -4.95768 67.5337 /T 62.9167
1987-Dec-08 00:00 20 37 46.53 +19 12 18.6 241.24 75.41 n.a. n.a. 1.0318876506 16.42476 0.8393477829 -4.12721 68.3528 /T 62.5292
1987-Dec-09 00:00 20 44 37.91 +19 42 07.1 243.56 73.60 n.a. n.a. 1.0414698145 16.74528 0.8372103631 -3.27430 69.1754 /T 62.1149
1987-Dec-10 00:00 20 51 34.32 +20 11 10.2 245.66 71.63 n.a. n.a. 1.0512332105 17.05267 0.8355717130 -2.40039 69.9999 /T 61.6751
1987-Dec-11 00:00 20 58 35.40 +20 39 24.1 247.54 69.50 n.a. n.a. 1.0611703470 17.34725 0.8344435057 -1.50706 70.8244 /T 61.2113
1987-Dec-12 00:00 21 05 40.79 +21 06 44.9 249.18 67.21 n.a. n.a. 1.0712739263 17.62938 0.8338364657 -0.59602 71.6471 /T 60.7250
1987-Dec-13 00:00 21 12 50.05 +21 33 09.0 250.56 64.78 n.a. n.a. 1.0815368494 17.89938 0.8337603043 0.33092 72.4662 /T 60.2180
1987-Dec-14 00:00 21 20 02.74 +21 58 33.0 251.67 62.21 n.a. n.a. 1.0919522203 18.15763 0.8342236560 1.27185 73.2799 /T 59.6919
1987-Dec-15 00:00 21 27 18.35 +22 22 53.9 252.49 59.51 n.a. n.a. 1.1025133494 18.40447 0.8352340237 2.22478 74.0863 /T 59.1485
1987-Dec-16 00:00 21 34 36.39 +22 46 08.7 253.02 56.71 n.a. n.a. 1.1132137539 18.64027 0.8367977316 3.18761 74.8833 /T 58.5898
1987-Dec-17 00:00 21 41 56.29 +23 08 15.1 253.24 53.81 n.a. n.a. 1.1240471587 18.86539 0.8389198839 4.15821 75.6693 /T 58.0174
1987-Dec-18 00:00 21 49 17.49 +23 29 10.9 253.16 50.83 n.a. n.a. 1.1350074964 19.08017 0.8416043356 5.13440 76.4424 /T 57.4332
1987-Dec-19 00:00 21 56 39.43 +23 48 54.4 252.77 47.79 n.a. n.a. 1.1460889048 19.28499 0.8448536757 6.11398 77.2007 /T 56.8391
1987-Dec-20 00:00 22 04 01.50 +24 07 24.3 252.08 44.70 n.a. n.a. 1.1572857259 19.48018 0.8486692251 7.09477 77.9426 /T 56.2369
1987-Dec-21 00:00 22 11 23.11 +24 24 39.9 251.07 41.59 n.a. n.a. 1.1685925029 19.66610 0.8530510536 8.07461 78.6664 /T 55.6284
1987-Dec-22 00:00 22 18 43.66 +24 40 40.6 249.78 38.47 n.a. n.a. 1.1800039764 19.84308 0.8579980188 9.05147 79.3705 /T 55.0152
1987-Dec-23 00:00 22 26 02.57 +24 55 26.5 248.19 35.36 n.a. n.a. 1.1915150815 20.01145 0.8635078220 10.02339 80.0536 /T 54.3991
1987-Dec-24 00:00 22 33 19.26 +25 08 58.0 246.32 32.28 n.a. n.a. 1.2031209434 20.17155 0.8695770786 10.98856 80.7141 /T 53.7816
1987-Dec-25 00:00 22 40 33.17 +25 21 15.9 244.19 29.23 n.a. n.a. 1.2148168726 20.32368 0.8762013950 11.94529 81.3508 /T 53.1642
1987-Dec-26 00:00 22 47 43.78 +25 32 21.4 241.81 26.25 n.a. n.a. 1.2265983608 20.46816 0.8833754438 12.89205 81.9626 /T 52.5485
1987-Dec-27 00:00 22 54 50.59 +25 42 16.0 239.20 23.33 n.a. n.a. 1.2384610761 20.60528 0.8910930375 13.82739 82.5485 /T 51.9355
1987-Dec-28 00:00 23 01 53.12 +25 51 01.7 236.37 20.50 n.a. n.a. 1.2504008573 20.73535 0.8993471980 14.75001 83.1076 /T 51.3267
1987-Dec-29 00:00 23 08 50.95 +25 58 40.5 233.36 17.76 n.a. n.a. 1.2624137095 20.85863 0.9081302260 15.65871 83.6391 /T 50.7230
1987-Dec-30 00:00 23 15 43.67 +26 05 15.0 230.17 15.13 n.a. n.a. 1.2744957987 20.97541 0.9174337692 16.55244 84.1423 /T 50.1255
1987-Dec-31 00:00 23 22 30.93 +26 10 47.7 226.83 12.62 n.a. n.a. 1.2866434466 21.08596 0.9272488934 17.43023 84.6168 /T 49.5350
1988-Jan-01 00:00 23 29 12.42 +26 15 21.4 223.36 10.22 n.a. n.a. 1.2988532668 21.19052 0.9375662736 18.29128 85.0622 /T 48.9522
1988-Jan-02 00:00 23 35 47.85 +26 18 59.0 219.78 7.95 n.a. n.a. 1.3111215943 21.28934 0.9483757804 19.13485 85.4783 /T 48.3779
1988-Jan-03 00:00 23 42 16.98 +26 21 43.7 216.11 5.80 n.a. n.a. 1.3234453275 21.38266 0.9596672635 19.96036 85.8648 /T 47.8126
1988-Jan-04 00:00 23 48 39.62 +26 23 38.5 212.37 3.79 n.a. n.a. 1.3358213594 21.47072 0.9714301439 20.76732 86.2218 /T 47.2566
1988-Jan-05 00:00 23 54 55.61 +26 24 46.6 208.57 1.91 n.a. n.a. 1.3482467128 21.55373 0.9836535908 21.55534 86.5493 /T 46.7104
1988-Jan-06 00:00 00 01 04.81 +26 25 11.1 204.74 0.16 n.a. n.a. 1.3607185359 21.63190 0.9963265790 22.32413 86.8475 /T 46.1742
1988-Jan-07 00:00 00 07 07.14 +26 24 55.2 200.89 -1.46 n.a. n.a. 1.3732340974 21.70545 1.0094379413 23.07350 87.1166 /T 45.6482
1988-Jan-08 00:00 00 13 02.55 +26 24 02.0 197.02 -2.95 n.a. n.a. 1.3857907817 21.77456 1.0229764180 23.80332 87.3570 /T 45.1326
1988-Jan-09 00:00 00 18 51.00 +26 22 34.4 193.17 -4.32 n.a. n.a. 1.3983860847 21.83942 1.0369307022 24.51355 87.5690 /T 44.6273
1988-Jan-10 00:00 00 24 32.50 +26 20 35.4 189.34 -5.57 n.a. n.a. 1.4110176089 21.90022 1.0512894802 25.20420 87.7532 /T 44.1324
1988-Jan-11 00:00 00 30 07.06 +26 18 07.8 185.53 -6.70 n.a. n.a. 1.4236830595 21.95714 1.0660414678 25.87536 87.9101 /T 43.6478
1988-Jan-12 00:00 00 35 34.75 +26 15 14.4 181.77 -7.72 n.a. n.a. 1.4363802401 22.01033 1.0811754401 26.52715 88.0401 /T 43.1733
1988-Jan-13 00:00 00 40 55.62 +26 11 57.7 178.05 -8.64 n.a. n.a. 1.4491070488 22.05995 1.0966802553 27.15973 88.1440 /T 42.7089
1988-Jan-14 00:00 00 46 09.75 +26 08 20.3 174.39 -9.46 n.a. n.a. 1.4618614740 22.10617 1.1125448718 27.77328 88.2223 /T 42.2543
1988-Jan-15 00:00 00 51 17.26 +26 04 24.4 170.80 -10.18 n.a. n.a. 1.4746415910 22.14913 1.1287583576 28.36800 88.2757 /T 41.8093
1988-Jan-16 00:00 00 56 18.25 +26 00 12.2 167.27 -10.81 n.a. n.a. 1.4874455582 22.18896 1.1453098954 28.94409 88.3050 /T 41.3737
1988-Jan-17 00:00 01 01 12.84 +25 55 45.9 163.81 -11.37 n.a. n.a. 1.5002716134 22.22581 1.1621887838 29.50176 88.3108 /T 40.9472
1988-Jan-18 00:00 01 06 01.16 +25 51 07.2 160.43 -11.84 n.a. n.a. 1.5131180714 22.25980 1.1793844431 30.04121 88.2938 /T 40.5296
1988-Jan-19 00:00 01 10 43.35 +25 46 18.1 157.13 -12.24 n.a. n.a. 1.5259833194 22.29106 1.1968864288 30.56272 88.2548 /T 40.1205
1988-Jan-20 00:00 01 15 19.54 +25 41 20.0 153.91 -12.58 n.a. n.a. 1.5388658149 22.31970 1.2146844611 31.06658 88.1944 /T 39.7197
1988-Jan-21 00:00 01 19 49.89 +25 36 14.5 150.77 -12.86 n.a. n.a. 1.5517640822 22.34585 1.2327684670 31.55322 88.1135 /T 39.3269
1988-Jan-22 00:00 01 24 14.55 +25 31 03.0 147.71 -13.08 n.a. n.a. 1.5646767101 22.36960 1.2511286272 32.02309 88.0127 /T 38.9418
1988-Jan-23 00:00 01 28 33.66 +25 25 46.8 144.73 -13.26 n.a. n.a. 1.5776023484 22.39106 1.2697554179 32.47675 87.8927 /T 38.5641
1988-Jan-24 00:00 01 32 47.38 +25 20 26.8 141.84 -13.39 n.a. n.a. 1.5905397059 22.41034 1.2886396361 32.91475 87.7542 /T 38.1936
1988-Jan-25 00:00 01 36 55.86 +25 15 04.3 139.02 -13.47 n.a. n.a. 1.6034875476 22.42752 1.3077724071 33.33767 87.5979 /T 37.8300
1988-Jan-26 00:00 01 40 59.26 +25 09 40.1 136.29 -13.53 n.a. n.a. 1.6164446922 22.44270 1.3271451774 33.74604 87.4243 /T 37.4729
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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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