******************************************************************************* Ephemeris / WWW_USER Mon May 5 22:13:56 2008 Pasadena, USA / Horizons ******************************************************************************* Target body name: Neptune (899) {source: NEP076} Center body name: Earth (399) {source: DE405} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2009-Dec-25 00:00:00.0000 UT Stop time : A.D. 2010-Jan-08 00:00:00.0000 UT Step-size : 1440 minutes ******************************************************************************* Target pole/equ : IAU_NEPTUNE {East-longitude -} Target radii : 24764.0 x 24764.0 x 24341.0 km {Equator, meridian, pole} Center geodetic : .000000000,.000000000,.00000000 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: .000000000,.000000000,.00000000 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : High-precision EOP model {East-longitude +} Center radii : 6378.1 x 6378.1 x 6356.8 km {Equator, meridian, pole} Target primary : Sun {source: DE405+DE406} Interfering body: MOON (Req= 1737.400) km {source: DE405} Deflecting body : Sun, EARTH {source: DE405} Deflecting GMs : 1.3271E+11, 3.9860E+05 km^3/s^2 Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL EOP file : eop.080505.p080727 EOP coverage : DATA-BASED 1962-JAN-20 TO 2008-MAY-05. PREDICTS-> 2008-JUL-26 Units conversion: 1 AU= 149597870.691 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO ) Table cut-offs 2: Solar Elongation ( 0.0,180.0=NO ) ******************************************************************************* Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC R.A.__(a-apparent)__DEC Ang-diam ******************************************************************************* $$SOE 2009-Dec-25 00:00 21 46 46.75 -13 50 00.6 21 47 19.45 -13 47 14.2 2.229 2009-Dec-26 00:00 21 46 52.98 -13 49 28.6 21 47 25.66 -13 46 42.1 2.228 2009-Dec-27 00:00 21 46 59.31 -13 48 56.0 21 47 31.98 -13 46 09.6 2.227 2009-Dec-28 00:00 21 47 05.73 -13 48 23.0 21 47 38.39 -13 45 36.5 2.226 2009-Dec-29 00:00 21 47 12.24 -13 47 49.6 21 47 44.90 -13 45 03.0 2.225 2009-Dec-30 00:00 21 47 18.84 -13 47 15.6 21 47 51.50 -13 44 29.0 2.225 2009-Dec-31 00:00 21 47 25.54 -13 46 41.2 21 47 58.20 -13 43 54.5 2.224 2010-Jan-01 00:00 21 47 32.32 -13 46 06.4 21 48 04.99 -13 43 19.5 2.223 2010-Jan-02 00:00 21 47 39.19 -13 45 31.0 21 48 11.86 -13 42 44.1 2.222 2010-Jan-03 00:00 21 47 46.14 -13 44 55.3 21 48 18.81 -13 42 08.4 2.221 2010-Jan-04 00:00 21 47 53.18 -13 44 19.1 21 48 25.84 -13 41 32.2 2.220 2010-Jan-05 00:00 21 48 00.30 -13 43 42.5 21 48 32.94 -13 40 55.6 2.219 2010-Jan-06 00:00 21 48 07.49 -13 43 05.5 21 48 40.13 -13 40 18.5 2.219 2010-Jan-07 00:00 21 48 14.77 -13 42 28.0 21 48 47.39 -13 39 41.1 2.218 2010-Jan-08 00:00 21 48 22.13 -13 41 50.2 21 48 54.74 -13 39 03.2 2.217 $$EOE ******************************************************************************* Column meaning: TIME Prior to 1962, 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. R.A._(ICRF/J2000.0)_DEC = J2000.0 astrometric right ascension and declination of target center. Corrected for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f) R.A._(a-apparent)__DEC. = Airless apparent right ascension and declination of the target center 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) Ang-diam = The equatorial angular width of the target body full disk, if it were fully visible to the observer. Units: ARCSECONDS 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 *******************************************************************************