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 08:00 UT To: A.D. 2002-06-01 08:00 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 14:43:40 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 14:43:40 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 08:00:00.0000 UT Stop time : A.D. 2002-Jun-01 08:00:00.0000 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 ******************************************************************************************************************** 2002-May-01 08:00 m 23 25 58.69 +04 13 32.5 87.0375 3.0614 17.00 7.05 3.5316478197 -13.24462 14.5781 Psc 2002-May-02 08:00 m 23 27 12.36 +04 22 32.8 87.3440 3.6835 17.01 7.06 3.5241548118 -13.42632 14.7181 Psc 2002-May-03 08:00 m 23 28 25.59 +04 31 31.4 87.6517 4.3068 17.01 7.06 3.5165570545 -13.60693 14.8565 Psc 2002-May-04 08:00 m 23 29 38.39 +04 40 28.4 87.9607 4.9313 17.01 7.07 3.5088551892 -13.78631 14.9935 Psc 2002-May-05 08:00 m 23 30 50.75 +04 49 23.6 88.2711 5.5569 17.01 7.08 3.5010499285 -13.96434 15.1289 Psc 2002-May-06 08:00 m 23 32 02.66 +04 58 17.1 88.5830 6.1837 17.01 7.08 3.4931420547 -14.14090 15.2628 Psc 2002-May-07 08:00 23 33 14.11 +05 07 08.7 88.8965 6.8117 17.01 7.09 3.4851324163 -14.31588 15.3951 Psc 2002-May-08 08:00 23 34 25.11 +05 15 58.5 89.2117 7.4408 17.01 7.09 3.4770219273 -14.48917 15.5257 Psc 2002-May-09 08:00 23 35 35.64 +05 24 46.3 89.5285 8.0711 17.01 7.10 3.4688115671 -14.66065 15.6547 Psc 2002-May-10 08:00 23 36 45.70 +05 33 32.1 89.8472 8.7026 17.02 7.10 3.4605023822 -14.83021 15.7820 Psc 2002-May-11 08:00 23 37 55.29 +05 42 15.9 90.1678 9.3352 17.02 7.11 3.4520954881 -14.99771 15.9075 Psc 2002-May-12 08:00 23 39 04.40 +05 50 57.6 90.4904 9.9690 17.02 7.12 3.4435920708 -15.16305 16.0313 Psc 2002-May-13 08:00 23 40 13.02 +05 59 37.1 90.8151 10.6040 17.02 7.12 3.4349933875 -15.32609 16.1533 Psc 2002-May-14 08:00 23 41 21.14 +06 08 14.4 91.1420 11.2401 17.02 7.13 3.4263007632 -15.48673 16.2735 Psc 2002-May-15 08:00 23 42 28.77 +06 16 49.5 91.4713 11.8773 17.02 7.13 3.4175155850 -15.64486 16.3918 Psc 2002-May-16 08:00 23 43 35.89 +06 25 22.2 91.8029 12.5157 17.02 7.14 3.4086392924 -15.80040 16.5082 Psc 2002-May-17 08:00 23 44 42.50 +06 33 52.4 92.1370 13.1553 17.02 7.14 3.3996733639 -15.95330 16.6227 Psc 2002-May-18 08:00 23 45 48.58 +06 42 20.2 92.4738 13.7960 17.02 7.15 3.3906193008 -16.10354 16.7353 Psc 2002-May-19 08:00 23 46 54.14 +06 50 45.5 92.8132 14.4378 17.02 7.15 3.3814786081 -16.25112 16.8459 Psc 2002-May-20 08:00 23 47 59.16 +06 59 08.2 93.1556 15.0807 17.02 7.16 3.3722527735 -16.39609 16.9545 Psc 2002-May-21 08:00 23 49 03.65 +07 07 28.2 93.5008 15.7247 17.02 7.16 3.3629432458 -16.53854 17.0611 Psc 2002-May-22 08:00 23 50 07.59 +07 15 45.6 93.8492 16.3698 17.01 7.17 3.3535514126 -16.67860 17.1656 Psc 2002-May-23 08:00 Am 23 51 10.98 +07 24 00.2 94.2007 17.0160 17.01 7.17 3.3440785832 -16.81640 17.2680 Psc 2002-May-24 08:00 Am 23 52 13.83 +07 32 12.1 94.5555 17.6633 17.01 7.18 3.3345259775 -16.95212 17.3683 Psc 2002-May-25 08:00 Am 23 53 16.12 +07 40 21.2 94.9138 18.3116 17.01 7.18 3.3248947281 -17.08588 17.4666 Psc 2002-May-26 08:00 Am 23 54 17.85 +07 48 27.5 95.2756 18.9610 17.01 7.19 3.3151858961 -17.21779 17.5626 Psc 2002-May-27 08:00 Am 23 55 19.02 +07 56 31.0 95.6411 19.6115 17.01 7.19 3.3054004988 -17.34790 17.6565 Psc 2002-May-28 08:00 Am 23 56 19.61 +08 04 31.5 96.0104 20.2629 17.01 7.19 3.2955395447 -17.47620 17.7481 Psc 2002-May-29 08:00 Am 23 57 19.62 +08 12 29.1 96.3838 20.9155 17.00 7.20 3.2856040674 -17.60260 17.8375 Psc 2002-May-30 08:00 Am 23 58 19.04 +08 20 23.6 96.7613 21.5690 17.00 7.20 3.2755951533 -17.72700 17.9246 Psc 2002-May-31 08:00 Am 23 59 17.85 +08 28 15.0 97.1431 22.2235 17.00 7.21 3.2655139588 -17.84928 18.0094 Psc 2002-Jun-01 08:00 Am 00 00 16.05 +08 36 03.2 97.5294 22.8791 17.00 7.21 3.2553617198 -17.96928 18.0918 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