Ephemeris Generator Ephemeris Settings Target Body: Comet 24P/Schaumasse [1993.03] Observer Location: Geocentric [Code=500] From: A.D. 1993-03-02 00:00 UT To: A.D. 1993-03-12 00:00 Step: 12 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 Wed Apr 5 12:27:56 2000 Pasadena, USA / JPL-Horizons ******************************************************************************* Target body name: 24P/Schaumasse {source: JPL#06-DASTCOM3} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1993-Mar-02 00:00:00.0000 UT Stop time : A.D. 1993-Mar-12 00:00:00.0000 UT Step-size : 720 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= 2449040.5 != 1993-Feb-22.0000000 (TDB) EC= .70485669 QR= 1.202167355 TP= 2449050.4639527 OM= 81.0538018 W= 57.4824698 IN= 11.8460046 Comet physical & dynamic parameters: GM= n.a. RAD= 1.3 A1= 6.85D-10 A2= -5.97D-10 M1= 7. M2= 15.5 k1= 30. 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 ************************************************************************************************************************************************* 1993-Mar-02 00:00 05 08 41.77 +44 32 34.4 120.12 45.66 8.12 16.26 1.2024461743 -0.49551 0.5545457119 1.34576 98.1679 54.6692 1993-Mar-02 12:00 05 10 57.43 +44 41 37.3 121.27 44.80 8.12 16.26 1.2023223186 -0.37067 0.5549401738 1.38691 98.1098 54.6991 1993-Mar-03 00:00 05 13 14.73 +44 50 29.7 122.42 43.92 8.12 16.26 1.2022345210 -0.24578 0.5553466867 1.42922 98.0555 54.7257 1993-Mar-03 12:00 05 15 33.67 +44 59 11.3 123.55 43.01 8.12 16.27 1.2021827932 -0.12086 0.5557655918 1.47273 98.0048 54.7492 1993-Mar-04 00:00 05 17 54.23 +45 07 41.9 124.67 42.07 8.13 16.27 1.2021671419 0.00407 0.5561972395 1.51747 97.9577 54.7696 1993-Mar-04 12:00 05 20 16.41 +45 16 01.1 125.78 41.11 8.13 16.27 1.2021875694 0.12901 0.5566419885 1.56347 97.9142 54.7869 1993-Mar-05 00:00 05 22 40.19 +45 24 08.7 126.88 40.13 8.13 16.27 1.2022440729 0.25393 0.5571002068 1.61075 97.8742 54.8010 1993-Mar-05 12:00 05 25 05.54 +45 32 04.2 127.96 39.12 8.13 16.28 1.2023366449 0.37881 0.5575722724 1.65937 97.8377 54.8121 1993-Mar-06 00:00 05 27 32.46 +45 39 47.5 129.03 38.08 8.14 16.28 1.2024652733 0.50365 0.5580585721 1.70933 97.8047 54.8201 1993-Mar-06 12:00 05 30 00.92 +45 47 18.2 130.08 37.02 8.14 16.28 1.2026299409 0.62842 0.5585595022 1.76069 97.7750 54.8251 1993-Mar-07 00:00 05 32 30.92 +45 54 35.9 131.11 35.93 8.14 16.28 1.2028306261 0.75310 0.5590754675 1.81346 97.7488 54.8270 1993-Mar-07 12:00 05 35 02.41 +46 01 40.5 132.13 34.81 8.15 16.29 1.2030673023 0.87769 0.5596068813 1.86768 97.7258 54.8260 1993-Mar-08 00:00 05 37 35.39 +46 08 31.5 133.14 33.67 8.15 16.29 1.2033399382 1.00216 0.5601541636 1.92336 97.7061 54.8219 1993-Mar-08 12:00 05 40 09.84 +46 15 08.6 134.12 32.51 8.16 16.29 1.2036484978 1.12649 0.5607177402 1.98052 97.6897 54.8149 1993-Mar-09 00:00 05 42 45.72 +46 21 31.6 135.09 31.32 8.16 16.29 1.2039929405 1.25068 0.5612980418 2.03918 97.6764 54.8049 1993-Mar-09 12:00 05 45 23.01 +46 27 40.2 136.04 30.10 8.17 16.30 1.2043732208 1.37470 0.5618955015 2.09935 97.6663 54.7919 1993-Mar-10 00:00 05 48 01.69 +46 33 34.0 136.97 28.86 8.18 16.30 1.2047892889 1.49854 0.5625105540 2.16102 97.6593 54.7761 1993-Mar-10 12:00 05 50 41.72 +46 39 12.8 137.89 27.60 8.19 16.30 1.2052410899 1.62219 0.5631436337 2.22419 97.6553 54.7573 1993-Mar-11 00:00 05 53 23.09 +46 44 36.3 138.78 26.31 8.19 16.30 1.2057285647 1.74562 0.5637951741 2.28886 97.6544 54.7357 1993-Mar-11 12:00 05 56 05.75 +46 49 44.2 139.66 25.00 8.20 16.31 1.2062516496 1.86882 0.5644656061 2.35502 97.6564 54.7112 1993-Mar-12 00:00 05 58 49.68 +46 54 36.2 140.51 23.66 8.21 16.31 1.2068102761 1.99178 0.5651553577 2.42265 97.6613 54.6839 ************************************************************************************************************************************************* 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 ************************************************************************************************************************************************* ------------------------------------------------------------------------ [JPL/SSD Home] Credits/Awards Contact: Webmaster (webmaster@ssd.jpl.nasa.gov) Last modified: 2000 March 13 08:35