Ephemeris Generator Ephemeris Settings Target Body: Comet 45P/Honda-Mrkos-Pajdusakova = (1990 XIV) [1990.67] Observer Location: Geocentric [Code=500] From: A.D. 1996-02-11 14:12 UT To: A.D. 1996-02-14 14:17 Step: 2 hour 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 09:07:59 1999 Pasadena, USA / JPL-Horizons ******************************************************************************* Target body name: Honda-Mrkos-Pajdusakova {source: JPL#14-DASTCOM3} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1996-Feb-11 14:12:00.0000 UT Stop time : A.D. 1996-Feb-14 14:17:00.0000 UT Step-size : 120 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 : 1.3 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= 2448160.5 != 1990-Sep-26.0000000 (TDB) EC= .821877274 QR= .541256156 TP= 2448147.183159 OM= 89.30926359999999 W= 325.7844033 IN= 4.219771 Comet physical & dynamic parameters: GM= n.a. RAD= 1.3 A1= 4.27D-10 A2= -5.88D-10 M1= 13.5 M2= 18. k1= 20. k2= 15. 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 S-T-O ************************************************************************************************************************************************* 1996-Feb-11 14:12 14 30 41.59 +08 19 36.4 -465.45 155.63 10.35 14.72 1.0597501348 24.78641 0.1854626854 8.00092 108.2444 62.1882 1996-Feb-11 16:12 14 29 38.98 +08 24 46.7 -463.83 154.72 10.36 14.73 1.0609430946 24.78320 0.1858497404 8.08374 108.5923 61.8505 1996-Feb-11 18:12 14 28 36.57 +08 29 55.2 -462.20 153.82 10.37 14.74 1.0621358983 24.77995 0.1862407724 8.16619 108.9393 61.5140 1996-Feb-11 20:12 14 27 34.37 +08 35 01.9 -460.56 152.90 10.39 14.75 1.0633285445 24.77668 0.1866357637 8.24826 109.2851 61.1787 1996-Feb-11 22:12 14 26 32.38 +08 40 06.8 -458.92 151.99 10.40 14.77 1.0645210318 24.77337 0.1870346962 8.32997 109.6299 60.8446 1996-Feb-12 00:12 14 25 30.60 +08 45 09.8 -457.27 151.08 10.42 14.78 1.0657133585 24.77003 0.1874375520 8.41130 109.9736 60.5117 1996-Feb-12 02:12 14 24 29.03 +08 50 11.0 -455.62 150.16 10.43 14.79 1.0669055232 24.76666 0.1878443133 8.49226 110.3162 60.1801 1996-Feb-12 04:12 14 23 27.66 +08 55 10.3 -453.96 149.24 10.45 14.80 1.0680975245 24.76327 0.1882549622 8.57285 110.6578 59.8497 1996-Feb-12 06:12 14 22 26.51 +09 00 07.8 -452.29 148.32 10.46 14.81 1.0692893608 24.75984 0.1886694806 8.65307 110.9983 59.5204 1996-Feb-12 08:12 14 21 25.57 +09 05 03.5 -450.62 147.40 10.47 14.83 1.0704810307 24.75637 0.1890878509 8.73291 111.3377 59.1925 1996-Feb-12 10:12 14 20 24.84 +09 09 57.3 -448.95 146.48 10.49 14.84 1.0716725328 24.75288 0.1895100552 8.81239 111.6760 58.8657 1996-Feb-12 12:12 14 19 24.32 +09 14 49.3 -447.27 145.55 10.50 14.85 1.0728638656 24.74937 0.1899360756 8.89150 112.0132 58.5402 1996-Feb-12 14:12 14 18 24.01 +09 19 39.5 -445.59 144.63 10.52 14.86 1.0740550277 24.74582 0.1903658945 8.97024 112.3493 58.2159 1996-Feb-12 16:12 14 17 23.92 +09 24 27.8 -443.90 143.71 10.53 14.88 1.0752460178 24.74224 0.1907994942 9.04861 112.6843 57.8928 1996-Feb-12 18:12 14 16 24.04 +09 29 14.2 -442.21 142.78 10.55 14.89 1.0764368343 24.73863 0.1912368568 9.12661 113.0183 57.5710 1996-Feb-12 20:12 14 15 24.38 +09 33 58.8 -440.52 141.86 10.56 14.90 1.0776274761 24.73499 0.1916779650 9.20425 113.3511 57.2504 1996-Feb-12 22:12 14 14 24.93 +09 38 41.6 -438.83 140.93 10.58 14.91 1.0788179415 24.73133 0.1921228008 9.28152 113.6828 56.9311 1996-Feb-13 00:12 14 13 25.70 +09 43 22.5 -437.13 140.01 10.59 14.92 1.0800082293 24.72764 0.1925713469 9.35843 114.0134 56.6129 1996-Feb-13 02:12 14 12 26.69 +09 48 01.5 -435.42 139.09 10.61 14.94 1.0811983381 24.72392 0.1930235856 9.43498 114.3430 56.2961 1996-Feb-13 04:12 14 11 27.89 +09 52 38.7 -433.72 138.16 10.62 14.95 1.0823882666 24.72017 0.1934794996 9.51116 114.6714 55.9804 1996-Feb-13 06:12 14 10 29.31 +09 57 14.1 -432.01 137.24 10.64 14.96 1.0835780135 24.71639 0.1939390713 9.58698 114.9987 55.6661 1996-Feb-13 08:12 14 09 30.94 +10 01 47.6 -430.30 136.32 10.65 14.97 1.0847675773 24.71259 0.1944022836 9.66244 115.3249 55.3529 1996-Feb-13 10:12 14 08 32.80 +10 06 19.3 -428.59 135.40 10.66 14.99 1.0859569570 24.70875 0.1948691191 9.73754 115.6499 55.0410 1996-Feb-13 12:12 14 07 34.87 +10 10 49.1 -426.88 134.47 10.68 15.00 1.0871461510 24.70490 0.1953395605 9.81229 115.9739 54.7304 1996-Feb-13 14:12 14 06 37.16 +10 15 17.1 -425.17 133.55 10.69 15.01 1.0883351581 24.70101 0.1958135905 9.88667 116.2968 54.4210 1996-Feb-13 16:12 14 05 39.67 +10 19 43.3 -423.45 132.64 10.71 15.02 1.0895239770 24.69710 0.1962911922 9.96071 116.6185 54.1128 1996-Feb-13 18:12 14 04 42.40 +10 24 07.6 -421.74 131.72 10.72 15.04 1.0907126065 24.69316 0.1967723484 10.03439 116.9391 53.8059 1996-Feb-13 20:12 14 03 45.35 +10 28 30.1 -420.02 130.80 10.74 15.05 1.0919010452 24.68920 0.1972570422 10.10771 117.2586 53.5002 1996-Feb-13 22:12 14 02 48.51 +10 32 50.7 -418.30 129.89 10.75 15.06 1.0930892920 24.68521 0.1977452566 10.18069 117.5770 53.1958 1996-Feb-14 00:12 14 01 51.90 +10 37 09.5 -416.58 128.98 10.77 15.07 1.0942773456 24.68119 0.1982369748 10.25332 117.8943 52.8926 1996-Feb-14 02:12 14 00 55.51 +10 41 26.5 -414.87 128.06 10.78 15.09 1.0954652047 24.67715 0.1987321801 10.32560 118.2105 52.5907 1996-Feb-14 04:12 13 59 59.34 +10 45 41.7 -413.15 127.16 10.80 15.10 1.0966528682 24.67308 0.1992308557 10.39753 118.5255 52.2900 1996-Feb-14 06:12 13 59 03.38 +10 49 55.1 -411.43 126.25 10.81 15.11 1.0978403348 24.66899 0.1997329850 10.46912 118.8394 51.9905 1996-Feb-14 08:12 13 58 07.65 +10 54 06.6 -409.71 125.34 10.83 15.12 1.0990276033 24.66487 0.2002385514 10.54036 119.1522 51.6923 1996-Feb-14 10:12 13 57 12.14 +10 58 16.4 -407.99 124.44 10.84 15.14 1.1002146725 24.66073 0.2007475384 10.61127 119.4639 51.3953 1996-Feb-14 12:12 13 56 16.84 +11 02 24.3 -406.28 123.54 10.86 15.15 1.1014015414 24.65656 0.2012599299 10.68183 119.7745 51.0996 1996-Feb-14 14:12 13 55 21.77 +11 06 30.4 -404.56 122.64 10.87 15.16 1.1025882084 24.65237 0.2017757092 10.75206 120.0839 50.8051 ************************************************************************************************************************************************* 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