Ephemeris Generator Ephemeris Settings Target Body: Comet C/Hale-Bopp (1995 O1) [1997.17] Observer Location: Geocentric [Code=500] From: A.D. 1995-08-31 18:21 UT To: A.D. 1996-08-25 08:26 Step: 5 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 21:46:02 1999 Pasadena, USA / JPL-Horizons ******************************************************************************* Target body name: Hale-Bopp {source: JPL#142-DASTCOM3} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1995-Aug-31 18:21:00.0000 UT Stop time : A.D. 1996-Aug-25 08:26:00.0000 UT Step-size : 7200 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 : (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 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= 2450520.5 != 1997-Mar-13.0000000 (TDB) EC= .995067071 QR= .914140641 TP= 2450539.6373016 OM= 282.4707025 W= 130.5887739 IN= 89.43000429999999 Comet physical & dynamic parameters: GM= n.a. RAD= n.a. A1= 1.2937E-8 A2= 1.234E-9 M1= -1. M2= 4.5 k1= 8.5 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 ************************************************************************************************************************************************* 1995-Aug-31 18:21 18 21 22.33 -30 42 19.3 -11.81 6.79 10.08 12.89 6.8164897140 -14.91089 6.3058446164 11.46178 116.5158 7.6126 1995-Sep-05 18:21 18 19 41.51 -30 28 36.3 -9.87 6.92 10.07 12.90 6.7733742041 -14.95167 6.3405550649 12.53602 111.3817 7.9652 1995-Sep-10 18:21 18 18 19.00 -30 14 40.8 -7.90 7.00 10.06 12.91 6.7301404521 -14.99289 6.3780339952 13.38241 106.2918 8.2551 1995-Sep-15 18:21 18 17 15.01 -30 00 37.4 -5.91 7.05 10.05 12.92 6.6867871721 -15.03454 6.4176389175 14.00791 101.2465 8.4811 1995-Sep-20 18:21 18 16 29.60 -29 46 31.1 -3.91 7.06 10.04 12.92 6.6433130545 -15.07663 6.4587209594 14.40400 96.2461 8.6421 1995-Sep-25 18:21 18 16 02.62 -29 32 25.1 -1.92 7.04 10.03 12.92 6.5997167652 -15.11919 6.5006045289 14.56175 91.2919 8.7380 1995-Sep-30 18:21 18 15 53.89 -29 18 22.6 0.03 7.00 10.02 12.93 6.5559969456 -15.16220 6.5425944217 14.47896 86.3855 8.7689 1995-Oct-05 18:21 18 16 02.83 -29 04 26.3 1.93 6.94 10.01 12.92 6.5121522145 -15.20569 6.5840197920 14.17553 81.5275 8.7364 1995-Oct-10 18:21 18 16 28.78 -28 50 37.1 3.76 6.88 10.00 12.92 6.4681811709 -15.24965 6.6242812750 13.67533 76.7155 8.6421 1995-Oct-15 18:21 18 17 11.18 -28 36 55.6 5.54 6.81 9.98 12.91 6.4240823920 -15.29410 6.6628227277 12.98390 71.9463 8.4878 1995-Oct-20 18:21 18 18 09.37 -28 23 22.1 7.25 6.75 9.97 12.90 6.3798544276 -15.33905 6.6990894309 12.09943 67.2175 8.2753 1995-Oct-25 18:21 18 19 22.64 -28 09 55.8 8.89 6.69 9.96 12.89 6.3354957965 -15.38451 6.7325220608 11.02108 62.5280 8.0069 1995-Oct-30 18:21 18 20 50.25 -27 56 36.2 10.43 6.64 9.94 12.87 6.2910049865 -15.43049 6.7625740061 9.76235 57.8776 7.6850 1995-Nov-04 18:21 18 22 31.16 -27 43 22.3 11.88 6.60 9.92 12.86 6.2463804589 -15.47699 6.7887691699 8.35434 53.2651 7.3128 1995-Nov-09 18:21 18 24 24.55 -27 30 11.9 13.24 6.57 9.90 12.84 6.2016206506 -15.52404 6.8107065215 6.81442 48.6874 6.8932 1995-Nov-14 18:21 18 26 29.61 -27 17 03.5 14.51 6.57 9.88 12.81 6.1567239707 -15.57163 6.8280111845 5.14564 44.1410 6.4291 1995-Nov-19 18:21 18 28 45.47 -27 03 54.8 15.70 6.58 9.86 12.78 6.1116887987 -15.61978 6.8403123718 3.34902 39.6233 5.9232 1995-Nov-24 18:21 18 31 11.38 -26 50 43.7 16.79 6.60 9.83 12.75 6.0665134838 -15.66850 6.8472451802 1.42939 35.1333 5.3784 1995-Nov-29 18:21 18 33 46.31 -26 37 28.6 17.78 6.65 9.81 12.72 6.0211963454 -15.71781 6.8484869813 -0.58658 30.6715 4.7982 1995-Dec-04 18:21 18 36 29.27 -26 24 07.0 18.66 6.71 9.78 12.68 5.9757356752 -15.76770 6.8438051141 -2.67067 26.2374 4.1863 1995-Dec-09 18:21 18 39 19.45 -26 10 36.6 19.46 6.79 9.74 12.64 5.9301297346 -15.81820 6.8330186277 -4.81415 21.8300 3.5459 1995-Dec-14 18:21 18 42 15.96 -25 56 55.5 20.16 6.89 9.71 12.60 5.8843767515 -15.86932 6.8159591990 -7.01505 17.4498 2.8807 1995-Dec-19 18:21 18 45 18.01 -25 43 01.2 20.78 7.01 9.67 12.56 5.8384749204 -15.92106 6.7924637727 -9.27106 13.1031 2.1951 1995-Dec-24 18:21 18 48 24.76 -25 28 52.4 21.29 7.14 9.63 12.51 5.7924224018 -15.97344 6.7623861010 -11.56944 8.8151 1.4969 1995-Dec-29 18:21 18 51 35.10 -25 14 27.6 21.69 7.28 9.59 12.46 5.7462173268 -16.02647 6.7256504553 -13.87695 4.7073 0.8103 1996-Jan-03 18:21 18 54 48.18 -24 59 44.8 21.99 7.43 9.55 12.42 5.6998576894 -16.08017 6.6822614620 -16.17617 2.1612 0.3734 1996-Jan-08 18:21 18 58 03.15 -24 44 42.4 22.20 7.60 9.50 12.40 5.6533417757 -16.13454 6.6322490564 -18.46389 4.9926 0.8625 1996-Jan-13 18:21 19 01 19.17 -24 29 19.5 22.32 7.78 9.45 12.38 5.6066675179 -16.18959 6.5756474791 -20.73922 9.0947 1.5835 1996-Jan-18 18:21 19 04 35.43 -24 13 34.6 22.34 7.96 9.40 12.36 5.5598329229 -16.24534 6.5124965685 -22.99793 13.3387 2.3343 1996-Jan-23 18:21 19 07 50.93 -23 57 27.6 22.24 8.15 9.35 12.35 5.5128359663 -16.30180 6.4428702545 -25.21775 17.6203 3.0928 1996-Jan-28 18:21 19 11 04.63 -23 40 57.4 22.03 8.35 9.29 12.32 5.4656746011 -16.35897 6.3669271708 -27.36956 21.9161 3.8509 1996-Feb-02 18:21 19 14 15.67 -23 24 03.6 21.71 8.55 9.23 12.30 5.4183467626 -16.41686 6.2848768081 -29.44694 26.2194 4.6038 1996-Feb-07 18:21 19 17 23.12 -23 06 45.7 21.30 8.75 9.17 12.27 5.3708503750 -16.47547 6.1969339441 -31.45024 30.5299 5.3475 1996-Feb-12 18:21 19 20 26.11 -22 49 03.2 20.78 8.95 9.10 12.24 5.3231833590 -16.53481 6.1033111930 -33.37984 34.8496 6.0783 1996-Feb-17 18:21 19 23 23.70 -22 30 56.4 20.13 9.16 9.03 12.21 5.2753436432 -16.59487 6.0042307127 -35.22631 39.1813 6.7921 1996-Feb-22 18:21 19 26 14.66 -22 12 25.7 19.35 9.35 8.96 12.17 5.2273291794 -16.65563 5.8999705194 -36.96140 43.5262 7.4845 1996-Feb-27 18:21 19 28 57.98 -21 53 30.9 18.44 9.55 8.88 12.13 5.1791379572 -16.71709 5.7908839468 -38.56774 47.8855 8.1511 1996-Mar-03 18:21 19 31 32.60 -21 34 12.5 17.41 9.75 8.81 12.09 5.1307680148 -16.77922 5.6773432820 -40.04599 52.2618 8.7876 1996-Mar-08 18:21 19 33 57.42 -21 14 30.5 16.25 9.94 8.73 12.04 5.0822174502 -16.84201 5.5597144148 -41.39908 56.6595 9.3900 1996-Mar-13 18:21 19 36 11.42 -20 54 25.2 14.94 10.14 8.64 11.99 5.0334844270 -16.90543 5.4383574926 -42.62611 61.0842 9.9536 1996-Mar-18 18:21 19 38 13.24 -20 33 57.5 13.47 10.32 8.56 11.93 4.9845671726 -16.96947 5.3136583177 -43.70857 65.5410 10.4732 1996-Mar-23 18:21 19 40 01.47 -20 13 07.7 11.83 10.50 8.47 11.87 4.9354639627 -17.03410 5.1860748042 -44.62026 70.0333 10.9432 1996-Mar-28 18:21 19 41 34.84 -19 51 56.3 10.03 10.68 8.38 11.80 4.8861730845 -17.09934 5.0561134947 -45.35540 74.5646 11.3581 1996-Apr-02 18:21 19 42 51.95 -19 30 23.3 8.06 10.86 8.28 11.74 4.8366927807 -17.16521 4.9242795080 -45.91751 79.1394 11.7123 1996-Apr-07 18:21 19 43 51.46 -19 08 28.6 5.91 11.04 8.18 11.66 4.7870211844 -17.23177 4.7910668545 -46.31023 83.7643 12.0003 1996-Apr-12 18:21 19 44 31.87 -18 46 12.3 3.56 11.22 8.08 11.58 4.7371562508 -17.29908 4.6569717023 -46.52511 88.4471 12.2157 1996-Apr-17 18:21 19 44 51.39 -18 23 34.8 1.00 11.40 7.98 11.50 4.6870957019 -17.36724 4.5225443117 -46.53562 93.1949 12.3515 1996-Apr-22 18:21 19 44 48.40 -18 00 35.2 -1.78 11.58 7.87 11.41 4.6368369919 -17.43634 4.3884047914 -46.32490 98.0124 12.4006 1996-Apr-27 18:21 19 44 21.25 -17 37 13.2 -4.75 11.78 7.77 11.32 4.5863772977 -17.50648 4.2551924759 -45.89429 102.9043 12.3565 1996-May-02 18:21 19 43 28.37 -17 13 27.2 -7.92 11.98 7.66 11.23 4.5357135346 -17.57774 4.1235359573 -45.24844 107.8758 12.2129 1996-May-07 18:21 19 42 08.29 -16 49 15.7 -11.30 12.20 7.55 11.12 4.4848423878 -17.65020 3.9940521626 -44.38872 112.9336 11.9634 1996-May-12 18:21 19 40 19.26 -16 24 37.8 -14.89 12.43 7.43 11.02 4.4337603534 -17.72392 3.8673815322 -43.29571 118.0845 11.6015 1996-May-17 18:21 19 37 59.73 -15 59 31.5 -18.66 12.67 7.32 10.91 4.3824637807 -17.79893 3.7442342004 -41.94708 123.3319 11.1214 1996-May-22 18:21 19 35 08.55 -15 33 55.0 -22.57 12.93 7.21 10.80 4.3309489052 -17.87528 3.6253541628 -40.34229 128.6743 10.5192 1996-May-27 18:21 19 31 44.88 -15 07 46.5 -26.57 13.21 7.09 10.68 4.2792118732 -17.95299 3.5114658285 -38.49282 134.1058 9.7933 1996-Jun-01 18:21 19 27 48.40 -14 41 03.4 -30.59 13.50 6.98 10.56 4.2272487617 -18.03209 3.4032554761 -36.41298 139.6146 8.9456 1996-Jun-06 18:21 19 23 19.15 -14 13 45.0 -34.61 13.80 6.87 10.44 4.1750555939 -18.11259 3.3013757394 -34.10790 145.1794 7.9816 1996-Jun-11 18:21 19 18 17.56 -13 45 51.3 -38.54 14.09 6.76 10.31 4.1226283505 -18.19450 3.2064918764 -31.56812 150.7578 6.9143 1996-Jun-16 18:21 19 12 45.11 -13 17 23.2 -42.24 14.36 6.65 10.19 4.0699629762 -18.27784 3.1192691247 -28.80762 156.2582 5.7716 1996-Jun-21 18:21 19 06 44.20 -12 48 23.9 -45.60 14.61 6.55 10.07 4.0170553777 -18.36261 3.0402943699 -25.86375 161.4804 4.6127 1996-Jun-26 18:21 19 00 18.26 -12 18 57.6 -48.50 14.81 6.45 9.96 3.9639014243 -18.44883 2.9700313055 -22.78289 165.9479 3.5733 1996-Jul-01 18:21 18 53 31.60 -11 49 11.1 -50.84 14.94 6.35 9.87 3.9104969476 -18.53651 2.9088055890 -19.61229 168.5570 2.9593 1996-Jul-06 18:21 18 46 29.00 -11 19 14.5 -52.55 14.98 6.26 9.81 3.8568377440 -18.62566 2.8568273702 -16.38268 167.8994 3.1690 1996-Jul-11 18:21 18 39 16.09 -10 49 19.5 -53.53 14.91 6.18 9.77 3.8029195752 -18.71628 2.8142195866 -13.13223 164.3160 4.1442 1996-Jul-16 18:21 18 31 59.28 -10 19 40.3 -53.68 14.72 6.10 9.76 3.7487381633 -18.80839 2.7809508977 -9.92668 159.2522 5.5111 1996-Jul-21 18:21 18 24 45.24 -09 50 31.3 -53.00 14.41 6.03 9.75 3.6942891921 -18.90200 2.7567893196 -6.83619 153.5573 7.0338 1996-Jul-26 18:21 18 17 40.63 -09 22 06.5 -51.52 13.98 5.96 9.75 3.6395683146 -18.99711 2.7413094860 -3.92300 147.5949 8.5987 1996-Jul-31 18:21 18 10 51.55 -08 54 39.8 -49.33 13.44 5.90 9.76 3.5845711636 -19.09372 2.7339323464 -1.22832 141.5323 10.1437 1996-Aug-05 18:21 18 04 23.28 -08 28 23.0 -46.50 12.82 5.84 9.77 3.5292933644 -19.19183 2.7339989340 1.22876 135.4576 11.6288 1996-Aug-10 18:21 17 58 20.77 -08 03 25.9 -43.08 12.12 5.79 9.78 3.4737305454 -19.29145 2.7407759492 3.41241 129.4251 13.0243 1996-Aug-15 18:21 17 52 48.16 -07 39 54.8 -39.20 11.39 5.74 9.80 3.4178783488 -19.39254 2.7534164668 5.28490 123.4733 14.3076 1996-Aug-20 18:21 17 47 48.62 -07 17 51.7 -34.97 10.66 5.69 9.81 3.3617324481 -19.49511 2.7709840354 6.82268 117.6295 15.4624 ************************************************************************************************************************************************* 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