Ephemeris Generator
Ephemeris Settings
Target Body: Asteroid 4201 Orosz (1984 JA1)
Observer Location: College Park, MD
Coordinates: 76°56'06.0''W, 38°59'12.1''N
From: A.D. 2004-10-01 07:00 UT
To: A.D. 2004-10-31 07:00
Step: 1 day
Format: Calendar Date and Time
Output Quantities: 1,4,8-9,20,29
Ref. Frame, RA/Dec Format: J2000, HMS
Apparent Coordinates Model: Airless
------------------------------------------------------------------------
HORIZONS Generated Ephemeris
*******************************************************************************
Ephemeris / WWW_USER Sat Sep 4 12:22:15 2004 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. 2004-Oct-01 07:00:00.0000 UT
Stop time : A.D. 2004-Oct-31 07:00:00.0000 UT
Step-size : 1440 minutes
*******************************************************************************
Center geodetic : 283.065000, 38.9867, -0.00{E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 283.065000, 4964.2564, 3991.16{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 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 {source: DE-0406LE-0406}
Deflecting GM : 1.3271E+11 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
EOP file : eop.040903.p041125
EOP coverage : DATA-BASED 1962-JAN-20 TO 2004-SEP-03. PREDICTS-> 2004-NOV-24
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 )
*******************************************************************************
Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG):
EPOCH= 2453200.5 ! 2004-Jul-14.00 (CT) RMSW= n.a.
EC= .2303011 QR= 2.4280353 TP= 2452052.3247449
OM= 238.23006 W= 14.6157 IN= 8.87824
Asteroid physical parameters (KM, SEC, rotational period in hours):
GM= n.a. RAD= 14.885 ROTPER= 17.7
H= 11.1 G= .150 B-V= n.a.
ALBEDO= .0794 STYP= n.a.
******************************************************************************************************************
Date__(UT)__HR:MN R.A._(ICRF/J2000.0)_DEC Azi_(a-appr)_Elev a-mass APmag S-brt delta deldot Cnst
******************************************************************************************************************
2004-Oct-01 07:00 m 07 27 25.60 +16 31 20.1 86.9039 22.9804 2.544 17.77 7.61 3.8768206191 -27.37823 Gem
2004-Oct-02 07:00 m 07 28 05.16 +16 27 48.4 87.4587 23.5829 2.484 17.76 7.61 3.8611739640 -27.46120 Gem
2004-Oct-03 07:00 m 07 28 43.97 +16 24 16.4 88.0181 24.1882 2.426 17.75 7.61 3.8454792562 -27.53987 Gem
2004-Oct-04 07:00 m 07 29 22.02 +16 20 44.2 88.5822 24.7961 2.371 17.74 7.61 3.8297391619 -27.61415 Gem
2004-Oct-05 07:00 m 07 29 59.30 +16 17 12.0 89.1514 25.4067 2.318 17.73 7.61 3.8139564416 -27.68391 Gem
2004-Oct-06 07:00 m 07 30 35.80 +16 13 39.7 89.7257 26.0198 2.268 17.73 7.61 3.7981339504 -27.74896 Gem
2004-Oct-07 07:00 m 07 31 11.51 +16 10 07.4 90.3056 26.6355 2.220 17.72 7.61 3.7822746372 -27.80906 Gem
2004-Oct-08 07:00 m 07 31 46.42 +16 06 35.1 90.8912 27.2538 2.174 17.71 7.61 3.7663815460 -27.86398 Gem
2004-Oct-09 07:00 m 07 32 20.50 +16 03 03.1 91.4828 27.8747 2.129 17.70 7.61 3.7504578188 -27.91339 Gem
2004-Oct-10 07:00 07 32 53.76 +15 59 31.2 92.0807 28.4980 2.087 17.69 7.61 3.7345067010 -27.95696 Gem
2004-Oct-11 07:00 07 33 26.17 +15 55 59.5 92.6851 29.1238 2.046 17.68 7.61 3.7185315467 -27.99429 Gem
2004-Oct-12 07:00 07 33 57.73 +15 52 28.2 93.2964 29.7521 2.007 17.67 7.61 3.7025358241 -28.02496 Gem
2004-Oct-13 07:00 07 34 28.43 +15 48 57.3 93.9150 30.3827 1.970 17.66 7.61 3.6865231167 -28.04862 Gem
2004-Oct-14 07:00 07 34 58.25 +15 45 26.8 94.5410 31.0157 1.934 17.65 7.61 3.6704971179 -28.06505 Gem
2004-Oct-15 07:00 07 35 27.17 +15 41 56.9 95.1749 31.6510 1.899 17.64 7.61 3.6544616157 -28.07428 Gem
2004-Oct-16 07:00 07 35 55.20 +15 38 27.5 95.8170 32.2885 1.866 17.63 7.61 3.6384204684 -28.07656 Gem
2004-Oct-17 07:00 07 36 22.32 +15 34 58.8 96.4677 32.9282 1.834 17.62 7.61 3.6223775721 -28.07231 Gem
2004-Oct-18 07:00 07 36 48.52 +15 31 30.9 97.1273 33.5699 1.803 17.61 7.61 3.6063368265 -28.06192 Gem
2004-Oct-19 07:00 07 37 13.79 +15 28 03.7 97.7964 34.2138 1.774 17.60 7.61 3.5903021042 -28.04561 Gem
2004-Oct-20 07:00 07 37 38.11 +15 24 37.4 98.4752 34.8596 1.745 17.59 7.61 3.5742772295 -28.02341 Gem
2004-Oct-21 07:00 07 38 01.49 +15 21 12.0 99.1642 35.5072 1.717 17.58 7.61 3.5582659674 -27.99514 Gem
2004-Oct-22 07:00 07 38 23.91 +15 17 47.5 99.8640 36.1566 1.691 17.57 7.61 3.5422720232 -27.96052 Gem
2004-Oct-23 07:00 07 38 45.36 +15 14 24.1 100.5750 36.8077 1.665 17.56 7.61 3.5262990509 -27.91929 Gem
2004-Oct-24 07:00 m 07 39 05.83 +15 11 01.8 101.2977 37.4603 1.641 17.55 7.60 3.5103506669 -27.87122 Gem
2004-Oct-25 07:00 m 07 39 25.32 +15 07 40.7 102.0327 38.1144 1.617 17.53 7.60 3.4944304689 -27.81623 Gem
2004-Oct-26 07:00 m 07 39 43.80 +15 04 20.8 102.7805 38.7697 1.594 17.52 7.60 3.4785420572 -27.75433 Gem
2004-Oct-27 07:00 m 07 40 01.28 +15 01 02.1 103.5417 39.4262 1.571 17.51 7.60 3.4626890566 -27.68563 Gem
2004-Oct-28 07:00 m 07 40 17.75 +14 57 44.8 104.3171 40.0837 1.550 17.50 7.60 3.4468751384 -27.61025 Gem
2004-Oct-29 07:00 m 07 40 33.18 +14 54 29.0 105.1072 40.7421 1.529 17.49 7.59 3.4311040390 -27.52830 Gem
2004-Oct-30 07:00 m 07 40 47.58 +14 51 14.5 105.9127 41.4011 1.509 17.47 7.59 3.4153795750 -27.43980 Gem
2004-Oct-31 07:00 m 07 41 00.93 +14 48 01.7 106.7345 42.0607 1.490 17.46 7.59 3.3997056530 -27.34469 Gem
******************************************************************************************************************
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.
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)
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
a-mass =
Relative optical airmass. Topocentric EARTH sites, ABOVE HORIZON ONLY.
Unitless.
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
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: 2004 August 21 19:12