Ephemeris Generator Ephemeris Settings Target Body: Comet 1P/Halley = (1986 III) [1986.08] Observer Location: Geocentric [Code=500] From: A.D. 1986-03-09 14:22 UT To: A.D. 1986-07-03 00:30 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 ******************************************************************************* Ephemeris / WWW_USER Sun Jul 25 21:36:15 1999 Pasadena, USA / JPL-Horizons ******************************************************************************* Target body name: Halley {source: JPL#71-DASTCOM3} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1986-Mar-09 14:22:00.0000 UT Stop time : A.D. 1986-Jul-03 00:30:00.0000 UT Step-size : 1440 minutes ******************************************************************************* Center geodetic : 0.000000, 0.000000, 0.00000 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.00000, 0.000, 0.000 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : Standard Earth 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 : 5.6 km 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 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Units conversion: 1 AU= 149597870.691 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs : Elevation (-90deg=NO ), Airmass (>38.0000=NO), Daylight (NO ) ******************************************************************************* Initial heliocentric osc. elements wrt ecliptic and mean equinox of J2000.0: EPOCH= 2446480.5 != 1986-Feb-19.0000000 (TDB) EC= .9672772549999999 QR= .587103753 TP= 2446470.9589563 OM= 58.8600459 W= 111.8656026 IN= 162.242202 Comet physical & dynamic parameters: GM= n.a. RAD= 5.6 A1= 2.66D-10 A2= 1.55D-10 M1= 5.5 M2= 13. k1= 8. k2= 5. PHCOF= .030 ************************************************************************************************************************************************* 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 S-T-O ************************************************************************************************************************************************* 1986-Mar-09 14:22 20 12 35.25 -19 40 32.3 -73.08 -69.92 5.04 14.60 0.8381840564 24.67107 1.0711127667 -41.92882 47.7301 61.2338 1986-Mar-10 14:22 20 10 28.78 -20 09 03.6 -75.62 -72.72 5.04 14.61 0.8525147252 24.93400 1.0467700824 -42.35209 49.3156 62.0603 1986-Mar-11 14:22 20 08 17.28 -20 38 45.1 -78.53 -75.77 5.05 14.62 0.8669900030 25.17232 1.0221961122 -42.72967 50.9233 62.8159 1986-Mar-12 14:22 20 06 00.02 -21 09 42.8 -81.83 -79.08 5.06 14.63 0.8815961909 25.38780 0.9974174787 -43.06071 52.5557 63.4995 1986-Mar-13 14:22 20 03 36.22 -21 42 03.4 -85.58 -82.68 5.06 14.62 0.8963205773 25.58208 0.9724614082 -43.34398 54.2159 64.1099 1986-Mar-14 14:22 20 01 04.98 -22 15 53.9 -89.82 -86.59 5.06 14.62 0.9111513771 25.75673 0.9473559424 -43.57786 55.9069 64.6454 1986-Mar-15 14:22 19 58 25.32 -22 51 22.2 -94.60 -90.83 5.06 14.61 0.9260776720 25.91319 0.9221301815 -43.76029 57.6323 65.1042 1986-Mar-16 14:22 19 55 36.12 -23 28 36.6 -99.98 -95.43 5.05 14.60 0.9410893521 26.05282 0.8968145643 -43.88869 59.3960 65.4837 1986-Mar-17 14:22 19 52 36.10 -24 07 46.2 -106.04 -100.43 5.05 14.58 0.9561770614 26.17687 0.8714411885 -43.95989 61.2021 65.7813 1986-Mar-18 14:22 19 49 23.84 -24 49 00.5 -112.85 -105.84 5.04 14.55 0.9713321447 26.28651 0.8460441770 -43.97004 63.0554 65.9933 1986-Mar-19 14:22 19 45 57.69 -25 32 29.9 -120.52 -111.69 5.02 14.52 0.9865465981 26.38284 0.8206600961 -43.91451 64.9611 66.1160 1986-Mar-20 14:22 19 42 15.79 -26 18 25.3 -129.14 -118.00 5.01 14.49 1.0018130217 26.46685 0.7953284318 -43.78780 66.9248 66.1448 1986-Mar-21 14:22 19 38 15.98 -27 06 58.1 -138.84 -124.80 4.99 14.45 1.0171245761 26.53948 0.7700921341 -43.58339 68.9528 66.0744 1986-Mar-22 14:22 19 33 55.78 -27 58 20.1 -149.77 -132.10 4.97 14.41 1.0324749406 26.60161 0.7449982386 -43.29364 71.0521 65.8988 1986-Mar-23 14:22 19 29 12.33 -28 52 43.2 -162.08 -139.89 4.95 14.36 1.0478582751 26.65402 0.7200985768 -42.90955 73.2302 65.6114 1986-Mar-24 14:22 19 24 02.30 -29 50 18.9 -175.96 -148.15 4.92 14.30 1.0632691842 26.69746 0.6954505909 -42.42066 75.4955 65.2044 1986-Mar-25 14:22 19 18 21.83 -30 51 18.0 -191.62 -156.83 4.90 14.24 1.0787026835 26.73262 0.6711182646 -41.81476 77.8570 64.6696 1986-Mar-26 14:22 19 12 06.41 -31 55 49.5 -209.30 -165.83 4.87 14.17 1.0941541690 26.76013 0.6471731820 -41.07769 80.3245 63.9976 1986-Mar-27 14:22 19 05 10.79 -33 03 59.7 -229.25 -175.01 4.84 14.10 1.1096193881 26.78057 0.6236957144 -40.19315 82.9083 63.1783 1986-Mar-28 14:22 18 57 28.86 -34 15 49.9 -251.75 -184.13 4.80 14.02 1.1250944133 26.79449 0.6007763184 -39.14252 85.6193 62.2010 1986-Mar-29 14:22 18 48 53.53 -35 31 14.8 -277.08 -192.84 4.77 13.93 1.1405756170 26.80240 0.5785168981 -37.90478 88.4688 61.0543 1986-Mar-30 14:22 18 39 16.64 -36 49 59.1 -305.50 -200.65 4.73 13.84 1.1560596495 26.80474 0.5570321470 -36.45670 91.4678 59.7270 1986-Mar-31 14:22 18 28 28.93 -38 11 33.3 -337.22 -206.86 4.70 13.74 1.1715434171 26.80196 0.5364507408 -34.77319 94.6264 58.2082 1986-Apr-01 14:22 18 16 20.11 -39 35 08.6 -372.35 -210.57 4.66 13.63 1.1870240633 26.79446 0.5169161917 -32.82813 97.9534 56.4881 1986-Apr-02 14:22 18 02 39.16 -40 59 31.7 -410.80 -210.61 4.63 13.53 1.2024989505 26.78258 0.4985871083 -30.59562 101.4544 54.5596 1986-Apr-03 14:22 17 47 14.96 -42 22 57.5 -452.16 -205.55 4.60 13.41 1.2179656441 26.76669 0.4816365284 -28.05196 105.1307 52.4194 1986-Apr-04 14:22 17 29 57.40 -43 43 04.6 -495.55 -193.78 4.57 13.30 1.2334218968 26.74708 0.4662499250 -25.17828 108.9769 50.0699 1986-Apr-05 14:22 17 10 39.27 -44 56 52.5 -539.51 -173.69 4.55 13.19 1.2488656355 26.72406 0.4526214653 -21.96392 112.9786 47.5219 1986-Apr-06 14:22 16 49 18.73 -46 00 45.0 -581.85 -144.00 4.54 13.08 1.2642949485 26.69788 0.4409481789 -18.41024 117.1099 44.7961 1986-Apr-07 14:22 16 26 02.30 -46 50 43.0 -619.68 -104.17 4.53 12.97 1.2797080742 26.66881 0.4314219096 -14.53436 121.3304 41.9263 1986-Apr-08 14:22 16 01 07.48 -47 22 49.5 -649.73 -54.95 4.54 12.87 1.2951033914 26.63707 0.4242193288 -10.37198 125.5832 38.9606 1986-Apr-09 14:22 15 35 03.64 -47 33 43.7 -668.87 1.34 4.55 12.78 1.3104794098 26.60288 0.4194908277 -5.97831 129.7932 35.9626 1986-Apr-10 14:22 15 08 30.03 -47 21 19.1 -674.90 60.90 4.58 12.71 1.3258347614 26.56643 0.4173496573 -1.42613 133.8674 33.0103 1986-Apr-11 14:22 14 42 10.65 -46 45 11.6 -667.11 119.14 4.63 12.65 1.3411681928 26.52790 0.4178630322 3.19901 137.6964 30.1942 1986-Apr-12 14:22 14 16 47.38 -45 46 47.4 -646.51 171.64 4.68 12.61 1.3564785577 26.48748 0.4210468324 7.80627 141.1595 27.6116 1986-Apr-13 14:22 13 52 53.89 -44 29 06.9 -615.48 215.08 4.75 12.60 1.3717648092 26.44531 0.4268649565 12.30789 144.1325 25.3597 1986-Apr-14 14:22 13 30 52.35 -42 56 11.4 -577.11 247.75 4.83 12.61 1.3870259927 26.40155 0.4352334288 16.62695 146.5019 23.5235 1986-Apr-15 14:22 13 10 53.34 -41 12 24.3 -534.55 269.48 4.92 12.65 1.4022612390 26.35633 0.4460283861 20.70288 148.1838 22.1622 1986-Apr-16 14:22 12 52 57.96 -39 21 58.0 -490.48 281.25 5.02 12.71 1.4174697569 26.30978 0.4590963998 24.49400 149.1426 21.2956 1986-Apr-17 14:22 12 37 00.78 -37 28 32.7 -446.93 284.70 5.13 12.79 1.4326508273 26.26201 0.4742654217 27.97719 149.4034 20.8978 1986-Apr-18 14:22 12 22 52.57 -35 35 06.1 -405.28 281.67 5.24 12.89 1.4478037971 26.21313 0.4913549118 31.14560 149.0457 20.9037 1986-Apr-19 14:22 12 10 22.47 -33 43 52.0 -366.37 273.93 5.36 13.00 1.4629280739 26.16324 0.5101842314 34.00509 148.1834 21.2253 1986-Apr-20 14:22 11 59 19.32 -31 56 24.6 -330.60 263.00 5.48 13.13 1.4780231202 26.11245 0.5305789240 36.57056 146.9392 21.7713 1986-Apr-21 14:22 11 49 32.51 -30 13 45.3 -298.08 250.09 5.60 13.26 1.4930884510 26.06083 0.5523749364 38.86260 145.4252 22.4601 1986-Apr-22 14:22 11 40 52.39 -28 36 29.7 -268.74 236.16 5.73 13.39 1.5081236276 26.00847 0.5754210713 40.90473 143.7340 23.2267 1986-Apr-23 14:22 11 33 10.36 -27 04 53.9 -242.40 221.87 5.85 13.52 1.5231282558 25.95543 0.5995800708 42.72141 141.9364 24.0227 1986-Apr-24 14:22 11 26 18.94 -25 39 00.4 -218.82 207.69 5.97 13.66 1.5381019816 25.90180 0.6247287171 44.33661 140.0840 24.8141 1986-Apr-25 14:22 11 20 11.66 -24 18 42.5 -197.74 193.94 6.10 13.79 1.5530444893 25.84764 0.6507572774 45.77294 138.2133 25.5785 1986-Apr-26 14:22 11 14 42.96 -23 03 47.3 -178.90 180.82 6.22 13.92 1.5679554979 25.79301 0.6775685492 47.05113 136.3491 26.3017 1986-Apr-27 14:22 11 09 48.06 -21 53 58.3 -162.04 168.44 6.34 14.05 1.5828347593 25.73796 0.7050766959 48.18979 134.5079 26.9753 1986-Apr-28 14:22 11 05 22.89 -20 48 57.1 -146.96 156.84 6.45 14.17 1.5976820556 25.68254 0.7332060097 49.20539 132.7001 27.5952 1986-Apr-29 14:22 11 01 23.94 -19 48 24.7 -133.42 146.03 6.57 14.29 1.6124971976 25.62681 0.7618896989 50.11237 130.9320 28.1601 1986-Apr-30 14:22 10 57 48.20 -18 52 02.1 -121.26 136.01 6.68 14.41 1.6272800222 25.57081 0.7910687578 50.92329 129.2070 28.6703 1986-May-01 14:22 10 54 33.09 -17 59 31.1 -110.31 126.73 6.79 14.52 1.6420303910 25.51459 0.8206909508 51.64907 127.5264 29.1274 1986-May-02 14:22 10 51 36.37 -17 10 34.2 -100.43 118.15 6.90 14.63 1.6567481886 25.45817 0.8507099170 52.29918 125.8905 29.5337 1986-May-03 14:22 10 48 56.11 -16 24 55.0 -91.49 110.24 7.01 14.74 1.6714333208 25.40160 0.8810843912 52.88183 124.2982 29.8919 1986-May-04 14:22 10 46 30.62 -15 42 18.5 -83.39 102.93 7.11 14.84 1.6860857135 25.34492 0.9117775298 53.40415 122.7484 30.2047 1986-May-05 14:22 10 44 18.44 -15 02 30.5 -76.03 96.18 7.22 14.94 1.7007053108 25.28815 0.9427563297 53.87233 121.2392 30.4753 1986-May-06 14:22 10 42 18.28 -14 25 18.1 -69.33 89.95 7.32 15.04 1.7152920742 25.23132 0.9739911285 54.29178 119.7688 30.7063 1986-May-07 14:22 10 40 29.01 -13 50 29.5 -63.21 84.19 7.42 15.13 1.7298459812 25.17446 1.0054551745 54.66719 118.3353 30.9006 1986-May-08 14:22 10 38 49.64 -13 17 53.7 -57.62 78.87 7.51 15.22 1.7443670244 25.11759 1.0371242587 55.00269 116.9365 31.0608 1986-May-09 14:22 10 37 19.28 -12 47 21.0 -52.49 73.94 7.61 15.31 1.7588552098 25.06075 1.0689763985 55.30187 115.5706 31.1894 1986-May-10 14:22 10 35 57.16 -12 18 42.2 -47.78 69.37 7.70 15.39 1.7733105568 25.00394 1.1009915680 55.56793 114.2357 31.2887 1986-May-11 14:22 10 34 42.57 -11 51 48.9 -43.45 65.13 7.79 15.47 1.7877330963 24.94720 1.1331514646 55.80366 112.9299 31.3609 1986-May-12 14:22 10 33 34.90 -11 26 33.7 -39.45 61.20 7.88 15.55 1.8021228706 24.89053 1.1654393099 56.01155 111.6515 31.4080 1986-May-13 14:22 10 32 33.59 -11 02 49.6 -35.76 57.54 7.97 15.63 1.8164799323 24.83397 1.1978396765 56.19379 110.3990 31.4319 1986-May-14 14:22 10 31 38.14 -10 40 30.3 -32.35 54.13 8.05 15.71 1.8308043434 24.77751 1.2303383400 56.35237 109.1707 31.4342 1986-May-15 14:22 10 30 48.09 -10 19 29.9 -29.19 50.95 8.14 15.78 1.8450961749 24.72118 1.2629221495 56.48903 107.9652 31.4167 1986-May-16 14:22 10 30 03.05 -09 59 43.2 -26.26 47.98 8.22 15.85 1.8593555060 24.66500 1.2955789180 56.60536 106.7812 31.3807 1986-May-17 14:22 10 29 22.64 -09 41 05.3 -23.53 45.21 8.30 15.92 1.8735824233 24.60897 1.3282973295 56.70280 105.6174 31.3276 1986-May-18 14:22 10 28 46.54 -09 23 31.8 -20.99 42.62 8.38 15.99 1.8877770208 24.55310 1.3610668618 56.78267 104.4727 31.2586 1986-May-19 14:22 10 28 14.44 -09 06 58.4 -18.62 40.19 8.45 16.05 1.9019393987 24.49741 1.3938777237 56.84618 103.3459 31.1750 1986-May-20 14:22 10 27 46.07 -08 51 21.6 -16.41 37.91 8.53 16.12 1.9160696633 24.44191 1.4267208054 56.89447 102.2361 31.0777 1986-May-21 14:22 10 27 21.17 -08 36 37.7 -14.35 35.77 8.61 16.18 1.9301679262 24.38661 1.4595876342 56.92862 101.1422 30.9677 1986-May-22 14:22 10 26 59.53 -08 22 43.7 -12.41 33.76 8.68 16.24 1.9442343044 24.33151 1.4924703324 56.94962 100.0634 30.8460 1986-May-23 14:22 10 26 40.94 -08 09 36.4 -10.60 31.87 8.75 16.30 1.9582689195 24.27662 1.5253615649 56.95834 98.9988 30.7133 1986-May-24 14:22 10 26 25.19 -07 57 13.3 -8.90 30.09 8.82 16.36 1.9722718969 24.22196 1.5582544718 56.95554 97.9476 30.5705 1986-May-25 14:22 10 26 12.13 -07 45 31.6 -7.30 28.40 8.89 16.41 1.9862433669 24.16752 1.5911425891 56.94184 96.9091 30.4182 1986-May-26 14:22 10 26 01.58 -07 34 29.3 -5.79 26.82 8.96 16.47 2.0001834624 24.11331 1.6240197598 56.91770 95.8827 30.2570 1986-May-27 14:22 10 25 53.40 -07 24 03.9 -4.36 25.31 9.03 16.52 2.0140923203 24.05935 1.6568800574 56.88346 94.8677 30.0876 1986-May-28 14:22 10 25 47.45 -07 14 13.7 -3.02 23.89 9.10 16.57 2.0279700801 24.00562 1.6897177264 56.83937 93.8635 29.9105 1986-May-29 14:22 10 25 43.62 -07 04 56.6 -1.74 22.54 9.16 16.62 2.0418168842 23.95214 1.7225271454 56.78564 92.8696 29.7262 1986-May-30 14:22 10 25 41.77 -06 56 11.2 -0.54 21.26 9.23 16.67 2.0556328775 23.89892 1.7553028093 56.72248 91.8855 29.5351 1986-May-31 14:22 10 25 41.82 -06 47 55.7 0.61 20.04 9.29 16.72 2.0694182070 23.84595 1.7880393229 56.65007 90.9108 29.3377 1986-Jun-01 14:22 10 25 43.66 -06 40 08.8 1.69 18.88 9.35 16.77 2.0831730219 23.79324 1.8207313996 56.56860 89.9450 29.1344 1986-Jun-02 14:22 10 25 47.20 -06 32 49.0 2.72 17.77 9.41 16.82 2.0968974730 23.74079 1.8533738626 56.47826 88.9877 28.9256 1986-Jun-03 14:22 10 25 52.35 -06 25 55.2 3.69 16.72 9.47 16.86 2.1105917127 23.68861 1.8859616434 56.37923 88.0385 28.7116 1986-Jun-04 14:22 10 25 59.03 -06 19 26.0 4.62 15.72 9.53 16.91 2.1242558952 23.63669 1.9184897825 56.27171 87.0971 28.4927 1986-Jun-05 14:22 10 26 07.17 -06 13 20.3 5.50 14.76 9.59 16.95 2.1378901753 23.58504 1.9509534268 56.15587 86.1632 28.2693 1986-Jun-06 14:22 10 26 16.70 -06 07 37.2 6.34 13.84 9.65 16.99 2.1514947095 23.53366 1.9833478293 56.03190 85.2363 28.0416 1986-Jun-07 14:22 10 26 27.54 -06 02 15.6 7.14 12.97 9.71 17.03 2.1650696547 23.48256 2.0156683483 55.89999 84.3164 27.8099 1986-Jun-08 14:22 10 26 39.62 -05 57 14.6 7.89 12.13 9.76 17.07 2.1786151690 23.43172 2.0479104483 55.76031 83.4029 27.5746 1986-Jun-09 14:22 10 26 52.90 -05 52 33.2 8.62 11.33 9.82 17.11 2.1921314109 23.38116 2.0800697010 55.61306 82.4958 27.3357 1986-Jun-10 14:22 10 27 07.31 -05 48 10.6 9.30 10.56 9.87 17.15 2.2056185394 23.33088 2.1121417879 55.45842 81.5947 27.0936 1986-Jun-11 14:22 10 27 22.79 -05 44 06.1 9.96 9.82 9.93 17.19 2.2190767141 23.28087 2.1441225033 55.29660 80.6995 26.8484 1986-Jun-12 14:22 10 27 39.30 -05 40 18.9 10.58 9.11 9.98 17.23 2.2325060949 23.23114 2.1760077569 55.12780 79.8097 26.6004 1986-Jun-13 14:22 10 27 56.78 -05 36 48.3 11.17 8.44 10.03 17.27 2.2459068414 23.18169 2.2077935785 54.95223 78.9254 26.3497 1986-Jun-14 14:22 10 28 15.19 -05 33 33.6 11.74 7.79 10.08 17.30 2.2592791141 23.13251 2.2394761236 54.77012 78.0462 26.0966 1986-Jun-15 14:22 10 28 34.48 -05 30 34.2 12.28 7.16 10.13 17.34 2.2726230729 23.08361 2.2710516800 54.58169 77.1720 25.8412 1986-Jun-16 14:22 10 28 54.61 -05 27 49.5 12.79 6.56 10.18 17.37 2.2859388777 23.03498 2.3025166770 54.38721 76.3025 25.5836 1986-Jun-17 14:22 10 29 15.56 -05 25 19.0 13.28 5.98 10.23 17.41 2.2992266887 22.98664 2.3338676954 54.18695 75.4376 25.3241 1986-Jun-18 14:22 10 29 37.27 -05 23 02.0 13.75 5.43 10.28 17.44 2.3124866653 22.93856 2.3651014753 53.98118 74.5771 25.0628 1986-Jun-19 14:22 10 29 59.72 -05 20 58.1 14.20 4.89 10.33 17.47 2.3257189667 22.89076 2.3962149173 53.77017 73.7208 24.7997 1986-Jun-20 14:22 10 30 22.87 -05 19 06.9 14.62 4.38 10.38 17.51 2.3389237522 22.84324 2.4272050731 53.55418 72.8686 24.5351 1986-Jun-21 14:22 10 30 46.70 -05 17 27.7 15.03 3.89 10.42 17.54 2.3521011802 22.79599 2.4580691160 53.33338 72.0202 24.2691 1986-Jun-22 14:22 10 31 11.17 -05 16 00.2 15.42 3.41 10.47 17.57 2.3652514089 22.74902 2.4888042988 53.10785 71.1756 24.0017 1986-Jun-23 14:22 10 31 36.25 -05 14 44.0 15.80 2.95 10.52 17.60 2.3783745958 22.70231 2.5194078990 52.87760 70.3346 23.7331 1986-Jun-24 14:22 10 32 01.92 -05 13 38.6 16.16 2.50 10.56 17.63 2.3914708982 22.65588 2.5498771716 52.64256 69.4970 23.4633 1986-Jun-25 14:22 10 32 28.15 -05 12 43.7 16.50 2.07 10.61 17.66 2.4045404721 22.60971 2.5802093142 52.40260 68.6627 23.1924 1986-Jun-26 14:22 10 32 54.92 -05 11 58.9 16.84 1.65 10.65 17.69 2.4175834738 22.56382 2.6104014559 52.15762 67.8316 22.9206 1986-Jun-27 14:22 10 33 22.22 -05 11 24.0 17.16 1.25 10.69 17.72 2.4306000584 22.51819 2.6404506609 51.90750 67.0036 22.6479 1986-Jun-28 14:22 10 33 50.01 -05 10 58.7 17.46 0.86 10.74 17.74 2.4435903801 22.47283 2.6703539432 51.65217 66.1786 22.3743 1986-Jun-29 14:22 10 34 18.29 -05 10 42.6 17.76 0.48 10.78 17.77 2.4565545929 22.42774 2.7001082859 51.39161 65.3565 22.1000 1986-Jun-30 14:22 10 34 47.03 -05 10 35.5 18.04 0.11 10.82 17.80 2.4694928498 22.38291 2.7297106569 51.12579 64.5372 21.8249 1986-Jul-01 14:22 10 35 16.22 -05 10 37.2 18.31 -0.25 10.86 17.82 2.4824053028 22.33834 2.7591580221 50.85472 63.7206 21.5493 1986-Jul-02 14:22 10 35 45.83 -05 10 47.3 18.57 -0.60 10.90 17.85 2.4952921033 22.29403 2.7884473563 50.57842 62.9067 21.2731 ************************************************************************************************************************************************* Column meaning: TIME Prior to 1972, 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 TDB uniform time scale is used internally. Conversion between TDB 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 = 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. Units: DEGREES 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 e-mail : horizons@ssd.jpl.nasa.gov ************************************************************************************************************************************************* ------------------------------------------------------------------------------------------------------------------------------------------------- Credits/Awards Contact: Webmaster (webmaster@ssd.jpl.nasa.gov) Last modified: 1999 June 30 13:42