Ephemeris Generator Ephemeris Settings Target Body: Asteroid (2002 NY40) Observer Location: Zurich, Switzerland Coordinates: 8¡31'59.9''E, 47¡22'00.1''N From: A.D. 2002-08-17 22:00 UT To: A.D. 2002-08-18 10:00 Step: 1 hour Format: Calendar Date and Time Output Quantities: 1,9,19-20,24,29 Ref. Frame, RA/Dec Format: J2000, HMS Apparent Coordinates Model: Airless ------------------------------------------------------------------------ HORIZONS Generated Ephemeris ******************************************************************************* Ephemeris / WWW_USER Tue Aug 13 23:20:58 2002 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2002 NY40) {source: JPL#22-DASTCOM3} Center body name: Earth (399) {source: DE-0406LE-0406} Center-site name: (User Defined Site) ******************************************************************************* Start time : A.D. 2002-Aug-17 22:00:00.0000 UT Stop time : A.D. 2002-Aug-18 10:00:00.0000 UT Step-size : 60 minutes ******************************************************************************* Center geodetic : 8.533300, 47.366700, 0.00000 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 8.53330, 4327.787, 4669.469 {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 : (unavailable) 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 ( 0.0deg=YES),Airmass (>38.000=NO), Daylight (YES) Table cut-offs 2: Solar Elongation ( 0.0,180.0=NO ) Table format : Comma Separated Values (spreadsheet) ******************************************************************************* Initial heliocentric osc. elements wrt ecliptic and mean equinox of J2000.0: EPOCH= 2452489.5 ! 2002-Aug-03.00 (CT) Residual RMS= .4378 EC= .7100952678587501 QR= .5912472168186723 TP= 2452552.487195341 OM= 146.8564171475297 W= 268.2810979422253 IN= 5.771367786028916 Asteroid physical parameters: GM= n.a. RAD= n.a. ROTPER= n.a. H= 19.3 G= .150 B-V= n.a. (H RMS)= .63002 ALBEDO= n.a. STYP= n.a. ************************************************************************************************************************************************* Date__(UT)__HR:MN, , ,R.A._(ICRF/J2000.0), DEC_(ICRF/J2000.0), APmag, , r, rdot, delta, deldot, S-T-O, Cnst, ************************************************************************************************************************************************* 2002-Aug-17 22:00, ,m, 19 53 48.85,+19 26 03.4, 9.89, , 1.0166907211,-21.05554, 0.0060085744,-16.95462, 42.9268, Sge, 2002-Aug-17 23:00, ,m, 19 43 51.90,+21 23 05.0, 9.83, , 1.0161840541,-21.05700, 0.0056093509,-16.20330, 45.9654, Vul, 2002-Aug-18 00:00, , , 19 32 08.47,+23 34 19.1, 9.77, , 1.0156773520,-21.05857, 0.0052298705,-15.31080, 49.4458, Vul, 2002-Aug-18 01:00, , , 19 18 13.65,+26 00 44.6, 9.73, , 1.0151706129,-21.06023, 0.0048738575,-14.24854, 53.4364, Lyr, 2002-Aug-18 02:00, , , 19 01 35.65,+28 42 28.3, 9.71, , 1.0146638351,-21.06193, 0.0045458074,-12.98093, 58.0090, Lyr, 2002-Aug-18 03:00,A, , 18 41 34.89,+31 37 55.0, 9.72, , 1.0141570188,-21.06363, 0.0042511398,-11.46727, 63.2312, Lyr, 2002-Aug-18 04:00,C, , 18 17 24.93,+34 42 32.8, 9.77, , 1.0136501657,-21.06520, 0.0039962605, -9.66770, 69.1527, Lyr, >..... Daylight Cut-off Requested .....< >..... Elevation Cut-off Requested .....< ************************************************************************************************************************************************* 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._(ICRF/J2000.0)_DEC = J2000.0 astrometric right ascension and declination of target. Corrected for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f) APmag = Asteroid's approximate apparent visual magnitude by following definition: APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi1 + G*phi2). 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-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) Author : Jon.Giorgini@jpl.nasa.gov ************************************************************************************************************************************************* ------------------------------------------------------------------------ Credits/Awards Contact: Webmaster (webmaster@ssd.jpl.nasa.gov) Last modified: 2001 November 6 16:20