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. 2001-12-01 00:00 UT To: A.D. 2002-01-01 00:00 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) 2001-Oct-26 15:43:25 Rec #: 4201 soln data arc: 1950-1998 # obs: 85 FK5/J2000.0 helio. ecliptic osc. elements (AU, DAYS, DEG, period=Julian yrs): EPOCH= 2452000.5 != 2001-Apr-01.0000000 (TDB) EC= .229876426 QR= 2.431511213 TP= 2452052.7245251 OM= 238.2466131 W= 14.8131907 IN= 8.8751093 A= 3.157300068 MA= 350.8250272 ADIST= 3.883088923 PER= 5.61025 N= .175683221 ANGMOM= .029747489 DAN= 2.44671 DDN= 3.84494 L= 252.8901113 B= 2.2606077 TP= 2001-May-23.2245251 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. 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 Fri Oct 26 15:43:25 2001 Pasadena, USA / JPL-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. 2001-Dec-01 00:00:00.0000 UT Stop time : A.D. 2002-Jan-01 00:00:00.0000 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= 2452000.5 != 2001-Apr-01.0000000 (TDB) EC= .229876426 QR= 2.431511213 TP= 2452052.7245251 OM= 238.2466131 W= 14.8131907 IN= 8.8751093 Asteroid physical parameters: GM= n.a. RAD= 14.89 ROTPER= n.a. H= 11.1 G= .150 B-V= n.a. ******************************************************************************************************************** Date__(UT)__HR:MN R.A.__(a-apparent)__DEC Azi_(a-appr)_Elev APmag S-brt delta deldot S-T-O Cnst ******************************************************************************************************************** 2001-Dec-01 00:00 m 19 25 09.57 -15 22 10.8 239.7691 11.0450 16.59 6.80 3.2686926502 18.16190 14.6264 Sgr 2001-Dec-02 00:00 m 19 26 55.48 -15 18 38.9 240.1930 10.7198 16.59 6.80 3.2789673128 18.02038 14.4483 Sgr 2001-Dec-03 00:00 m 19 28 41.46 -15 15 01.9 240.6161 10.3940 16.59 6.79 3.2891589466 17.87752 14.2693 Sgr 2001-Dec-04 00:00 19 30 27.52 -15 11 19.8 241.0383 10.0677 16.59 6.79 3.2992667532 17.73318 14.0896 Sgr 2001-Dec-05 00:00 19 32 13.64 -15 07 32.8 241.4598 9.7409 16.59 6.78 3.3092898540 17.58722 13.9090 Sgr 2001-Dec-06 00:00 19 33 59.82 -15 03 40.7 241.8806 9.4136 16.60 6.78 3.3192272809 17.43948 13.7276 Sgr 2001-Dec-07 00:00 19 35 46.05 -14 59 43.5 242.3007 9.0858 16.60 6.77 3.3290779764 17.28981 13.5454 Sgr 2001-Dec-08 00:00 19 37 32.33 -14 55 41.3 242.7203 8.7576 16.60 6.77 3.3388408020 17.13808 13.3625 Sgr 2001-Dec-09 00:00 19 39 18.65 -14 51 34.1 243.1393 8.4288 16.60 6.77 3.3485145535 16.98419 13.1788 Sgr 2001-Dec-10 00:00 19 41 05.01 -14 47 21.8 243.5578 8.0996 16.60 6.76 3.3580979812 16.82808 12.9943 Sgr 2001-Dec-11 00:00 19 42 51.40 -14 43 04.5 243.9758 7.7699 16.60 6.76 3.3675898137 16.66975 12.8092 Sgr 2001-Dec-12 00:00 19 44 37.83 -14 38 42.2 244.3935 7.4397 16.60 6.75 3.3769887831 16.50921 12.6234 Sgr 2001-Dec-13 00:00 19 46 24.28 -14 34 14.9 244.8108 7.1090 16.60 6.75 3.3862936501 16.34654 12.4369 Sgr 2001-Dec-14 00:00 19 48 10.74 -14 29 42.6 245.2278 6.7778 16.60 6.74 3.3955032264 16.18184 12.2498 Sgr 2001-Dec-15 00:00 19 49 57.22 -14 25 05.3 245.6446 6.4461 16.60 6.74 3.4046163924 16.01524 12.0621 Sgr 2001-Dec-16 00:00 19 51 43.70 -14 20 23.1 246.0611 6.1138 16.60 6.73 3.4136321078 15.84689 11.8738 Sgr 2001-Dec-17 00:00 19 53 30.16 -14 15 36.1 246.4776 5.7811 16.60 6.73 3.4225494145 15.67692 11.6850 Sgr 2001-Dec-18 00:00 m 19 55 16.62 -14 10 44.1 246.8939 5.4478 16.60 6.72 3.4313674338 15.50546 11.4956 Sgr 2001-Dec-19 00:00 m 19 57 03.05 -14 05 47.3 247.3102 5.1140 16.60 6.71 3.4400853591 15.33265 11.3057 Sgr 2001-Dec-20 00:00 m 19 58 49.44 -14 00 45.7 247.7264 4.7796 16.60 6.71 3.4487024459 15.15856 11.1154 Sgr 2001-Dec-21 00:00 m 20 00 35.81 -13 55 39.3 248.1427 4.4447 16.60 6.70 3.4572180033 14.98329 10.9247 Sgr 2001-Dec-22 00:00 m 20 02 22.13 -13 50 28.1 248.5591 4.1092 16.60 6.70 3.4656313871 14.80692 10.7335 Sgr 2001-Dec-23 00:00 m 20 04 08.40 -13 45 12.1 248.9757 3.7731 16.60 6.69 3.4739419941 14.62951 10.5420 Sgr 2001-Dec-24 00:00 m 20 05 54.61 -13 39 51.4 249.3924 3.4365 16.60 6.69 3.4821492599 14.45113 10.3501 Sgr 2001-Dec-25 00:00 m 20 07 40.77 -13 34 26.0 249.8093 3.0993 16.60 6.68 3.4902526576 14.27184 10.1579 Cap 2001-Dec-26 00:00 m 20 09 26.87 -13 28 55.9 250.2265 2.7615 16.60 6.68 3.4982516961 14.09170 9.9655 Cap 2001-Dec-27 00:00 m 20 11 12.91 -13 23 21.2 250.6440 2.4231 16.60 6.67 3.5061459174 13.91077 9.7727 Cap 2001-Dec-28 00:00 m 20 12 58.87 -13 17 41.8 251.0618 2.0841 16.59 6.66 3.5139348889 13.72908 9.5798 Cap 2001-Dec-29 00:00 m 20 14 44.76 -13 11 58.0 251.4800 1.7446 16.59 6.66 3.5216181911 13.54663 9.3866 Cap 2001-Dec-30 00:00 m 20 16 30.57 -13 06 09.6 251.8987 1.4044 16.59 6.65 3.5291953968 13.36339 9.1933 Cap 2001-Dec-31 00:00 m 20 18 16.30 -13 00 16.7 252.3177 1.0637 16.59 6.64 3.5366660451 13.17928 8.9999 Cap 2002-Jan-01 00:00 m 20 20 01.94 -12 54 19.4 252.7373 0.7223 16.59 6.64 3.5440296131 12.99417 8.8063 Cap ******************************************************************************************************************** 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. 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 : Jon.Giorgini@jpl.nasa.gov ******************************************************************************************************************** ------------------------------------------------------------------------ [JPL/SSD Home] Credits/Awards Contact: Webmaster (webmaster@ssd.jpl.nasa.gov) Last modified: 2001 October 18 15:37