Ephemeris Generator Ephemeris Settings Target Body: Comet P/McNaught-Russell (1994 X1) [1994] Observer Location: Geocentric [Code=500] From: A.D. 1994-03-27 20:36 UT To: A.D. 1994-04-04 10:57 Step: 6 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 21:56:57 1999 Pasadena, USA / JPL-Horizons ******************************************************************************* Target body name: McNaught-Russell {source: MPC24882} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1994-Mar-27 20:36:00.0000 UT Stop time : A.D. 1994-Apr-04 10:57:00.0000 UT Step-size : 360 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= 2449600.5 != 1994-Sep-05.0000000 (TDB) EC= .815683778 QR= 1.276889878 TP= 2449603.4443917 OM= 218.0081897 W= 171.1487361 IN= 29.0740953 Comet physical & dynamic parameters: GM= n.a. RAD= n.a. A1= n.a. A2= n.a. M1= 13.5 M2= n.a. k1= 10. 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 S-T-O ************************************************************************************************************************************************* 1994-Mar-27 20:36 20 46 16.04 +06 44 51.9 66.73 32.56 19.60 n.a. 2.4140679832 -15.93694 2.8484897812 -29.76817 54.7385 19.7293 1994-Mar-28 02:36 20 46 42.93 +06 48 07.6 66.77 32.65 19.59 n.a. 2.4117667733 -15.93781 2.8441917619 -29.77052 54.8435 19.7770 1994-Mar-28 08:36 20 47 09.84 +06 51 23.7 66.81 32.73 19.59 n.a. 2.4094654400 -15.93866 2.8398934141 -29.77271 54.9484 19.8247 1994-Mar-28 14:36 20 47 36.78 +06 54 40.4 66.85 32.82 19.58 n.a. 2.4071639858 -15.93949 2.8355947625 -29.77472 55.0531 19.8725 1994-Mar-28 20:36 20 48 03.73 +06 57 57.6 66.89 32.91 19.57 n.a. 2.4048624135 -15.94030 2.8312958315 -29.77657 55.1576 19.9202 1994-Mar-29 02:36 20 48 30.70 +07 01 15.3 66.93 33.00 19.56 n.a. 2.4025607258 -15.94109 2.8269966454 -29.77825 55.2620 19.9679 1994-Mar-29 08:36 20 48 57.70 +07 04 33.6 66.97 33.08 19.56 n.a. 2.4002589255 -15.94186 2.8226972283 -29.77976 55.3662 20.0157 1994-Mar-29 14:36 20 49 24.71 +07 07 52.4 67.02 33.17 19.55 n.a. 2.3979570153 -15.94262 2.8183976043 -29.78111 55.4703 20.0634 1994-Mar-29 20:36 20 49 51.74 +07 11 11.7 67.06 33.26 19.54 n.a. 2.3956549979 -15.94335 2.8140977971 -29.78229 55.5742 20.1112 1994-Mar-30 02:36 20 50 18.79 +07 14 31.5 67.10 33.35 19.53 n.a. 2.3933528763 -15.94407 2.8097978308 -29.78330 55.6779 20.1589 1994-Mar-30 08:36 20 50 45.87 +07 17 51.9 67.14 33.43 19.53 n.a. 2.3910506531 -15.94476 2.8054977294 -29.78415 55.7815 20.2067 1994-Mar-30 14:36 20 51 12.96 +07 21 12.7 67.18 33.52 19.52 n.a. 2.3887483312 -15.94544 2.8011975167 -29.78483 55.8850 20.2544 1994-Mar-30 20:36 20 51 40.07 +07 24 34.2 67.22 33.61 19.51 n.a. 2.3864459135 -15.94609 2.7968972169 -29.78535 55.9882 20.3022 1994-Mar-31 02:36 20 52 07.21 +07 27 56.1 67.26 33.70 19.50 n.a. 2.3841434027 -15.94673 2.7925968543 -29.78569 56.0914 20.3500 1994-Mar-31 08:36 20 52 34.36 +07 31 18.5 67.31 33.78 19.50 n.a. 2.3818408019 -15.94735 2.7882964533 -29.78587 56.1943 20.3978 1994-Mar-31 14:36 20 53 01.53 +07 34 41.5 67.35 33.87 19.49 n.a. 2.3795381138 -15.94794 2.7839960384 -29.78588 56.2971 20.4455 1994-Mar-31 20:36 20 53 28.73 +07 38 05.0 67.39 33.96 19.48 n.a. 2.3772353414 -15.94852 2.7796956345 -29.78571 56.3998 20.4933 1994-Apr-01 02:36 20 53 55.95 +07 41 29.1 67.43 34.05 19.47 n.a. 2.3749324876 -15.94907 2.7753952666 -29.78537 56.5022 20.5411 1994-Apr-01 08:36 20 54 23.18 +07 44 53.6 67.47 34.13 19.47 n.a. 2.3726295554 -15.94961 2.7710949599 -29.78485 56.6046 20.5889 1994-Apr-01 14:36 20 54 50.44 +07 48 18.7 67.52 34.22 19.46 n.a. 2.3703265477 -15.95012 2.7667947400 -29.78416 56.7067 20.6367 1994-Apr-01 20:36 20 55 17.72 +07 51 44.3 67.56 34.31 19.45 n.a. 2.3680234675 -15.95062 2.7624946327 -29.78328 56.8087 20.6845 1994-Apr-02 02:36 20 55 45.02 +07 55 10.5 67.60 34.40 19.44 n.a. 2.3657203178 -15.95109 2.7581946641 -29.78223 56.9105 20.7323 1994-Apr-02 08:36 20 56 12.34 +07 58 37.1 67.64 34.48 19.44 n.a. 2.3634171016 -15.95154 2.7538948605 -29.78099 57.0122 20.7801 1994-Apr-02 14:36 20 56 39.68 +08 02 04.3 67.69 34.57 19.43 n.a. 2.3611138219 -15.95198 2.7495952484 -29.77956 57.1137 20.8280 1994-Apr-02 20:36 20 57 07.04 +08 05 32.0 67.73 34.66 19.42 n.a. 2.3588104819 -15.95239 2.7452958549 -29.77795 57.2150 20.8758 1994-Apr-03 02:36 20 57 34.42 +08 09 00.2 67.77 34.75 19.41 n.a. 2.3565070846 -15.95277 2.7409967070 -29.77615 57.3162 20.9236 1994-Apr-03 08:36 20 58 01.82 +08 12 29.0 67.81 34.83 19.40 n.a. 2.3542036330 -15.95314 2.7366978321 -29.77416 57.4172 20.9714 1994-Apr-03 14:36 20 58 29.25 +08 15 58.3 67.86 34.92 19.40 n.a. 2.3519001303 -15.95349 2.7323992579 -29.77198 57.5180 21.0193 1994-Apr-03 20:36 20 58 56.69 +08 19 28.1 67.90 35.01 19.39 n.a. 2.3495965796 -15.95381 2.7281010124 -29.76960 57.6187 21.0671 1994-Apr-04 02:36 20 59 24.16 +08 22 58.4 67.94 35.10 19.38 n.a. 2.3472929841 -15.95411 2.7238031237 -29.76703 57.7192 21.1149 1994-Apr-04 08:36 20 59 51.65 +08 26 29.2 67.98 35.18 19.37 n.a. 2.3449893469 -15.95439 2.7195056201 -29.76426 57.8195 21.1628 ************************************************************************************************************************************************* 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