Ephemeris Generator Ephemeris Settings Target Body: Asteroid 4201 Orosz (1984 JA1) Observer Location: Alexandria, VA Coordinates: 77°03'00.0''W, 38°48'11.9''N From: A.D. 2002-05-01 07:00 UT To: A.D. 2002-06-01 07:00 Step: 1 day Format: Calendar Date and Time Output Quantities: 2,4,9,20,24,29 Ref. Frame, RA/Dec Format: J2000, HMS Apparent Coordinates Model: Airless ------------------------------------------------------------------------ HORIZONS Body Information ******************************************************************************* JPL/HORIZONS 4201 Orosz (1984 JA1) 2002-Apr-08 14:42:19 Rec #: 4201 Soln.date: - # obs: 85 (1950-1998) FK5/J2000.0 helio. ecliptic osc. elements (AU, DAYS, DEG, period=Julian yrs): EPOCH= 2452200.5 ! 2001-Oct-18.00 (CT) RMSW= n.a. EC= .229870945 QR= 2.431441727 TP= 2452052.6240921 OM= 238.2453721 W= 14.7853626 IN= 8.8748117 A= 3.157187371 MA= 25.9807068 ADIST= 3.882933015 PER= 5.60995 N= .175692628 ANGMOM= .029746998 DAN= 2.44658 DDN= 3.84493 L= 252.861344 B= 2.2563785 TP= 2001-May-23.1240921 Physical parameters (KM, SEC, rotational period in hours): GM= n.a. RAD= 14.89 ROTPER= n.a. H= 11.1 G= .150 B-V= n.a. (H RMS)= n.a. ALBEDO= .079 STYP= n.a. ASTEROID comments: 1: soln ref.= MPC33738, 1984 JA1 OCC=1 h M-v 38 2: ******************************************************************************* ------------------------------------------------------------------------ HORIZONS Generated Ephemeris ******************************************************************************* Ephemeris / WWW_USER Mon Apr 8 14:42:19 2002 Pasadena, USA / Horizons ******************************************************************************* Target body name: 4201 Orosz (1984 JA1) {source: MPC33738} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: (User Defined Site) ******************************************************************************* Start time : A.D. 2002-May-01 07:00:00.0000 UT Stop time : A.D. 2002-Jun-01 07:00:00.0000 UT Step-size : 1440 minutes ******************************************************************************* Center geodetic : 282.950000, 38.803300, 0.00000 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 282.95000, 4977.044, 3975.320 {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 : 14.9 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 Small perturbers: Ceres, Pallas, Vesta {source: SB405-CPV-2} Small body GMs : 6.32E+01, 1.43E+01, 1.78E+01 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 1: Elevation ( 0deg=YES), Airmass (>38.0000=NO), Daylight (YES) Table cut-offs 2: Solar Elongation ( 0.0,180.0=NO ) ******************************************************************************* Initial heliocentric osc. elements wrt ecliptic and mean equinox of J2000.0: EPOCH= 2452200.5 ! 2001-Oct-18.00 (CT) RMSW= n.a. EC= .229870945 QR= 2.431441727 TP= 2452052.6240921 OM= 238.2453721 W= 14.7853626 IN= 8.8748117 Asteroid physical parameters: GM= n.a. RAD= 14.89 ROTPER= n.a. H= 11.1 G= .150 B-V= n.a. (H RMS)= n.a. ALBEDO= .079 STYP= n.a. ******************************************************************************************************************** Date__(UT)__HR:MN R.A.__(a-apparent)__DEC Azi_(a-appr)_Elev APmag S-brt delta deldot S-T-O Cnst ******************************************************************************************************************** >..... Elevation Cut-off Requested .....< 2002-May-14 07:00 23 41 18.31 +06 07 52.9 81.7644 -0.4405 17.02 7.13 3.4266734436 -15.48335 16.2685 Psc 2002-May-15 07:00 23 42 25.96 +06 16 28.0 82.0946 0.1927 17.02 7.13 3.4178920867 -15.64273 16.3869 Psc 2002-May-16 07:00 23 43 33.10 +06 25 00.8 82.4256 0.8275 17.02 7.14 3.4090195532 -15.79953 16.5034 Psc 2002-May-17 07:00 23 44 39.73 +06 33 31.2 82.7576 1.4638 17.02 7.14 3.4000573203 -15.95369 16.6180 Psc 2002-May-18 07:00 23 45 45.84 +06 41 59.1 83.0907 2.1016 17.02 7.15 3.3910068887 -16.10519 16.7306 Psc 2002-May-19 07:00 23 46 51.42 +06 50 24.4 83.4248 2.7409 17.02 7.15 3.3818697635 -16.25403 16.8413 Psc 2002-May-20 07:00 23 47 56.46 +06 58 47.2 83.7602 3.3817 17.02 7.16 3.3726474337 -16.40026 16.9500 Psc 2002-May-21 07:00 m 23 49 00.97 +07 07 07.4 84.0969 4.0240 17.02 7.16 3.3633413500 -16.54398 17.0567 Psc 2002-May-22 07:00 m 23 50 04.93 +07 15 24.8 84.4350 4.6678 17.01 7.17 3.3539529032 -16.68529 17.1613 Psc 2002-May-23 07:00 m 23 51 08.35 +07 23 39.6 84.7745 5.3131 17.01 7.17 3.3444834059 -16.82434 17.2638 Psc 2002-May-24 07:00 m 23 52 11.22 +07 31 51.6 85.1156 5.9599 17.01 7.18 3.3349340817 -16.96130 17.3642 Psc 2002-May-25 07:00 m 23 53 13.54 +07 40 00.8 85.4583 6.6082 17.01 7.18 3.3253060670 -17.09630 17.4625 Psc 2002-May-26 07:00 m 23 54 15.30 +07 48 07.3 85.8027 7.2580 17.01 7.19 3.3156004250 -17.22944 17.5586 Psc 2002-May-27 07:00 m 23 55 16.49 +07 56 10.8 86.1489 7.9093 17.01 7.19 3.3058181743 -17.36079 17.6526 Psc 2002-May-28 07:00 m 23 56 17.10 +08 04 11.5 86.4971 8.5621 17.01 7.19 3.2959603231 -17.49032 17.7443 Psc 2002-May-29 07:00 m 23 57 17.14 +08 12 09.2 86.8473 9.2164 17.00 7.20 3.2860279032 -17.61796 17.8338 Psc 2002-May-30 07:00 m 23 58 16.58 +08 20 03.8 87.1996 9.8722 17.00 7.20 3.2760219984 -17.74361 17.9210 Psc 2002-May-31 07:00 m 23 59 15.42 +08 27 55.3 87.5542 10.5295 17.00 7.21 3.2659437621 -17.86713 18.0059 Psc 2002-Jun-01 07:00 m 00 00 13.64 +08 35 43.6 87.9111 11.1883 17.00 7.21 3.2557944266 -17.98839 18.0884 Psc ******************************************************************************************************************** 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 uniform Coordinate Time scale is used internally. Conversion between CT 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. SOLAR PRESENCE Time tag is followed by a blank, then a solar-presence symbol: '*' Daylight (refracted solar upper-limb on or above apparent horizon)'C' Civil twilight/dawn'N' Nautical twilight/dawn'A' Astronomical twilight/dawn' ' Night OR geocentric ephemeris LUNAR PRESENCE The solar-presence symbol is immediately followed by a lunar-presence symbol: 'm' Refracted upper-limb of Moon on or above apparent horizon' ' Refracted upper-limb of Moon below apparent horizon OR geocentric ephemeris 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) Azi_(a-appr)_Elev = Airless apparent azimuth and elevation of target. Corrected for light-time, the gravitational deflection of light, stellar aberration, precession and nutation. Azimuth measured North(0) -> East(90) -> South(180) -> West(270), elevation with respect to plane perpendicular to local zenith direction. TOPOCENTRIC ONLY. Units: DEGREES APmag S-brt = Asteroid's approximate apparent visual magnitude & surface brightness. APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi1 + G*phi2) Units: none & VISUAL MAGNITUDES PER SQUARE ARCSECOND delta deldot = Target apparent range ("delta") and range-rate ("delta-dot") relative to observer. Units: AU and KM/S S-T-O = Sun-Target-Observer angle; target's apparent PHASE ANGLE as seen at observer's location at print time. Units: DEGREES Cnst = Constellation ID; the 3-letter abbreviation for the constellation name of target's astrometric position, as defined by IAU (1930) boundary delineation. See documentation for list of abbreviations. 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 (via browser) telnet ssd.jpl.nasa.gov 6775 (via command-line) E-mail : horizons@ssd.jpl.nasa.gov ******************************************************************************************************************** ------------------------------------------------------------------------ [JPL/SSD Home] Credits/Awards Contact: Webmaster (webmaster@ssd.jpl.nasa.gov) Last modified: 2001 November 6 16:20