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. 2001-11-01 00:00 UT To: A.D. 2001-12-01 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 15:44:46 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 15:44:46 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-Nov-01 00:00:00.0000 UT Stop time : A.D. 2001-Dec-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-Nov-01 00:00 m 18 33 25.18 -16 28 59.7 226.3377 20.5569 16.46 6.91 2.9260838071 21.63488 19.4567 Sgr 2001-Nov-02 00:00 m 18 35 05.19 -16 27 57.1 226.8186 20.2489 16.47 6.90 2.9384144252 21.54818 19.3154 Sgr 2001-Nov-03 00:00 m 18 36 45.52 -16 26 49.8 227.2964 19.9401 16.48 6.90 2.9506931576 21.45993 19.1725 Sgr 2001-Nov-04 00:00 m 18 38 26.15 -16 25 37.8 227.7712 19.6305 16.48 6.90 2.9629191050 21.37006 19.0281 Sgr 2001-Nov-05 00:00 18 40 07.08 -16 24 21.2 228.2432 19.3202 16.49 6.90 2.9750913261 21.27848 18.8821 Sgr 2001-Nov-06 00:00 18 41 48.31 -16 22 59.7 228.7124 19.0091 16.49 6.89 2.9872088216 21.18509 18.7347 Sgr 2001-Nov-07 00:00 18 43 29.81 -16 21 33.5 229.1789 18.6974 16.50 6.89 2.9992705216 21.08975 18.5857 Sgr 2001-Nov-08 00:00 18 45 11.59 -16 20 02.6 229.6427 18.3849 16.50 6.89 3.0112752765 20.99232 18.4353 Sgr 2001-Nov-09 00:00 18 46 53.63 -16 18 26.8 230.1040 18.0718 16.51 6.88 3.0232218517 20.89266 18.2834 Sgr 2001-Nov-10 00:00 18 48 35.93 -16 16 46.1 230.5629 17.7581 16.51 6.88 3.0351089295 20.79061 18.1301 Sgr 2001-Nov-11 00:00 18 50 18.48 -16 15 00.5 231.0194 17.4437 16.52 6.88 3.0469351171 20.68608 17.9754 Sgr 2001-Nov-12 00:00 18 52 01.28 -16 13 10.0 231.4736 17.1288 16.52 6.87 3.0586989624 20.57896 17.8192 Sgr 2001-Nov-13 00:00 18 53 44.31 -16 11 14.5 231.9256 16.8133 16.53 6.87 3.0703989784 20.46923 17.6618 Sgr 2001-Nov-14 00:00 18 55 27.58 -16 09 14.0 232.3754 16.4972 16.53 6.87 3.0820336744 20.35690 17.5030 Sgr 2001-Nov-15 00:00 18 57 11.07 -16 07 08.5 232.8232 16.1807 16.54 6.86 3.0936015893 20.24207 17.3428 Sgr 2001-Nov-16 00:00 18 58 54.78 -16 04 57.9 233.2690 15.8636 16.54 6.86 3.1051013217 20.12485 17.1814 Sgr 2001-Nov-17 00:00 19 00 38.69 -16 02 42.3 233.7129 15.5459 16.54 6.86 3.1165315519 20.00539 17.0188 Sgr 2001-Nov-18 00:00 19 02 22.79 -16 00 21.7 234.1550 15.2277 16.55 6.85 3.1278910513 19.88387 16.8549 Sgr 2001-Nov-19 00:00 m 19 04 07.08 -15 57 56.0 234.5954 14.9091 16.55 6.85 3.1391786821 19.76042 16.6898 Sgr 2001-Nov-20 00:00 m 19 05 51.55 -15 55 25.3 235.0340 14.5899 16.56 6.85 3.1503933885 19.63518 16.5236 Sgr 2001-Nov-21 00:00 m 19 07 36.17 -15 52 49.5 235.4711 14.2701 16.56 6.84 3.1615341845 19.50826 16.3563 Sgr 2001-Nov-22 00:00 m 19 09 20.95 -15 50 08.6 235.9066 13.9499 16.56 6.84 3.1726001423 19.37975 16.1878 Sgr 2001-Nov-23 00:00 m 19 11 05.87 -15 47 22.7 236.3407 13.6292 16.57 6.83 3.1835903816 19.24973 16.0183 Sgr 2001-Nov-24 00:00 m 19 12 50.93 -15 44 31.6 236.7735 13.3079 16.57 6.83 3.1945040630 19.11827 15.8477 Sgr 2001-Nov-25 00:00 m 19 14 36.11 -15 41 35.4 237.2049 12.9862 16.57 6.83 3.2053403835 18.98542 15.6761 Sgr 2001-Nov-26 00:00 m 19 16 21.42 -15 38 34.1 237.6350 12.6639 16.57 6.82 3.2160985739 18.85124 15.5035 Sgr 2001-Nov-27 00:00 m 19 18 06.85 -15 35 27.6 238.0640 12.3411 16.58 6.82 3.2267778973 18.71578 15.3299 Sgr 2001-Nov-28 00:00 m 19 19 52.38 -15 32 16.1 238.4918 12.0179 16.58 6.81 3.2373776457 18.57910 15.1554 Sgr 2001-Nov-29 00:00 m 19 21 38.01 -15 28 59.4 238.9186 11.6941 16.58 6.81 3.2478971347 18.44122 14.9800 Sgr 2001-Nov-30 00:00 m 19 23 23.75 -15 25 37.6 239.3443 11.3698 16.58 6.81 3.2583356934 18.30216 14.8036 Sgr 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 ******************************************************************************************************************** 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