Ephemeris Generator
Ephemeris Settings
Target Body: *Comet 7P/Pons-Winnecke = (1858 E1) [2004.08]*
Observer Location: *Geocentric [Code=500]*
Coordinates: *0 00'00.0''E, 0 00'00.0''N, -6378140. m*
From: *A.D. 1989-08-06 18:54 UT*
To: *A.D. 1989-09-15 16:38 *
Step: *1 day*
Format: *Calendar Date and Time*
Output Quantities: *2-3,9,19-20,23-24*
Ref. Frame, RA/Dec Format: *J2000, HMS*
Apparent Coordinates Model: *Airless*
------------------------------------------------------------------------
HORIZONS Generated Ephemeris
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Ephemeris / WWW_USER Tue Mar 1 11:15:50 2005 Pasadena, USA / Horizons
*******************************************************************************
Target body name: 7P/Pons-Winnecke {source: JPL#K027/23}
Center body name: Earth (399) {source: DE-0406LE-0406}
Center-site name: GEOCENTRIC
*******************************************************************************
Start time : A.D. 1989-Aug-06 18:54:00.0000 UT
Stop time : A.D. 1989-Sep-15 16:38:00.0000 UT
Step-size : 1440 minutes
*******************************************************************************
Center geodetic : 0.000000, 0.0000, 0.0000{E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 0.000000, 0.0000, 0.0000{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 : 2.6 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
EOP file : eop.050225.p050519
EOP coverage : DATA-BASED 1962-JAN-20 TO 2005-FEB-25. PREDICTS-> 2005-MAY-18
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 )
*******************************************************************************
Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG):
EPOCH= 2453040.5 != 2004-Feb-05.0000000 (CT) Residual RMS= .90051
EC= .6341225884300884 QR= 1.257269946412386 TP= 2452410.209349916
OM= 93.43667592674578 W= 172.2632395441328 IN= 22.2880931679301
Comet physical & dynamic parameters (KM, SEC; A1,A2,A3=AU/d^2; DT=days):
GM= n.a. RAD= 2.6 A1= 2.078736D-10
A2= -3.166585D-11 A3= 1.808236D-10 DT= 68.01438
M1= 11.5 M2= 16. k1= 12.
k2= 5. PHCOF= .030
****************************************************************************************************************************************************
Date__(UT)__HR:MN R.A.__(a-apparent)__DEC dRA*cosD d(DEC)/dt T-mag N-mag r rdot delta deldot S-O-T /r S-T-O
****************************************************************************************************************************************************
1989-Aug-06 18:54 13 46 49.14 -02 31 25.1 97.46 -96.07 13.05 18.30 1.2710403010 -2.64883 1.1504389604 1.38557 71.6050 /T 49.2067
1989-Aug-07 18:54 13 49 25.96 -03 09 52.3 98.32 -96.19 13.05 18.30 1.2695695974 -2.45150 1.1512801785 1.52571 71.4775 /T 49.2240
1989-Aug-08 18:54 13 52 04.26 -03 48 22.0 99.18 -96.27 13.05 18.30 1.2682131638 -2.25315 1.1522034944 1.66984 71.3542 /T 49.2363
1989-Aug-09 18:54 13 54 44.04 -04 26 53.4 100.03 -96.33 13.04 18.30 1.2669715637 -2.05387 1.1532112105 1.81795 71.2351 /T 49.2438
1989-Aug-10 18:54 13 57 25.32 -05 05 25.8 100.87 -96.35 13.04 18.30 1.2658453156 -1.85372 1.1543056341 1.97007 71.1201 /T 49.2462
1989-Aug-11 18:54 14 00 08.11 -05 43 58.4 101.70 -96.35 13.04 18.30 1.2648348917 -1.65280 1.1554890780 2.12619 71.0091 /T 49.2437
1989-Aug-12 18:54 14 02 52.41 -06 22 30.5 102.52 -96.31 13.04 18.30 1.2639407174 -1.45119 1.1567638622 2.28634 70.9020 /T 49.2362
1989-Aug-13 18:54 14 05 38.24 -07 01 01.3 103.34 -96.23 13.04 18.30 1.2631631703 -1.24896 1.1581323169 2.45054 70.7987 /T 49.2237
1989-Aug-14 18:54 14 08 25.60 -07 39 29.9 104.14 -96.13 13.04 18.30 1.2625025799 -1.04620 1.1595967834 2.61879 70.6990 /T 49.2061
1989-Aug-15 18:54 14 11 14.51 -08 17 55.5 104.94 -95.99 13.04 18.31 1.2619592268 -0.84299 1.1611596119 2.79112 70.6030 /T 49.1834
1989-Aug-16 18:54 14 14 04.97 -08 56 17.3 105.73 -95.81 13.04 18.31 1.2615333423 -0.63943 1.1628231499 2.96751 70.5105 /T 49.1557
1989-Aug-17 18:54 14 16 57.01 -09 34 34.5 106.51 -95.60 13.04 18.31 1.2612251079 -0.43560 1.1645897238 3.14788 70.4213 /T 49.1229
1989-Aug-18 18:54 14 19 50.62 -10 12 46.2 107.29 -95.36 13.04 18.31 1.2610346550 -0.23158 1.1664616077 3.33213 70.3353 /T 49.0849
1989-Aug-19 18:54 14 22 45.85 -10 50 51.5 108.06 -95.08 13.05 18.31 1.2609620649 -0.02746 1.1684409881 3.52007 70.2526 /T 49.0419
1989-Aug-20 18:54 14 25 42.69 -11 28 49.7 108.82 -94.76 13.05 18.32 1.2610073684 0.17667 1.1705299327 3.71147 70.1728 /T 48.9937
1989-Aug-21 18:54 14 28 41.18 -12 06 39.9 109.58 -94.41 13.06 18.32 1.2611705459 0.38072 1.1727303642 3.90606 70.0960 /T 48.9404
1989-Aug-22 18:54 14 31 41.33 -12 44 21.2 110.33 -94.02 13.06 18.32 1.2614515272 0.58461 1.1750440485 4.10358 70.0221 /T 48.8819
1989-Aug-23 18:54 14 34 43.15 -13 21 52.8 111.07 -93.60 13.07 18.32 1.2618501920 0.78824 1.1774725979 4.30376 69.9509 /T 48.8182
1989-Aug-24 18:54 14 37 46.67 -13 59 13.8 111.81 -93.13 13.07 18.33 1.2623663697 0.99154 1.1800174791 4.50636 69.8823 /T 48.7495
1989-Aug-25 18:54 14 40 51.90 -14 36 23.2 112.54 -92.63 13.08 18.33 1.2629998402 1.19442 1.1826800286 4.71117 69.8163 /T 48.6755
1989-Aug-26 18:54 14 43 58.86 -15 13 20.1 113.26 -92.09 13.09 18.34 1.2637503335 1.39679 1.1854614710 4.91802 69.7528 /T 48.5965
1989-Aug-27 18:54 14 47 07.54 -15 50 03.7 113.98 -91.52 13.10 18.34 1.2646175311 1.59856 1.1883629327 5.12674 69.6917 /T 48.5123
1989-Aug-28 18:54 14 50 17.98 -16 26 32.9 114.68 -90.90 13.11 18.34 1.2656010659 1.79966 1.1913854586 5.33720 69.6328 /T 48.4231
1989-Aug-29 18:54 14 53 30.17 -17 02 46.8 115.37 -90.25 13.12 18.35 1.2667005231 2.00000 1.1945300238 5.54930 69.5761 /T 48.3289
1989-Aug-30 18:54 14 56 44.12 -17 38 44.6 116.05 -89.55 13.13 18.35 1.2679154406 2.19950 1.1977975466 5.76295 69.5214 /T 48.2297
1989-Aug-31 18:54 14 59 59.86 -18 14 25.2 116.72 -88.82 13.14 18.36 1.2692453102 2.39808 1.2011888967 5.97807 69.4687 /T 48.1257
1989-Sep-01 18:54 15 03 17.37 -18 49 47.8 117.38 -88.05 13.15 18.37 1.2706895783 2.59566 1.2047049043 6.19459 69.4179 /T 48.0167
1989-Sep-02 18:54 15 06 36.68 -19 24 51.5 118.02 -87.24 13.17 18.37 1.2722476467 2.79218 1.2083463640 6.41247 69.3687 /T 47.9031
1989-Sep-03 18:54 15 09 57.79 -19 59 35.2 118.65 -86.39 13.18 18.38 1.2739188736 2.98754 1.2121140396 6.63163 69.3212 /T 47.7847
1989-Sep-04 18:54 15 13 20.69 -20 33 58.1 119.26 -85.51 13.19 18.38 1.2757025747 3.18169 1.2160086639 6.85205 69.2751 /T 47.6617
1989-Sep-05 18:54 15 16 45.40 -21 07 59.4 119.86 -84.59 13.21 18.39 1.2775980244 3.37454 1.2200309415 7.07365 69.2304 /T 47.5342
1989-Sep-06 18:54 15 20 11.90 -21 41 38.1 120.45 -83.63 13.22 18.40 1.2796044569 3.56604 1.2241815475 7.29641 69.1869 /T 47.4023
1989-Sep-07 18:54 15 23 40.21 -22 14 53.3 121.01 -82.63 13.24 18.40 1.2817210672 3.75611 1.2284611312 7.52026 69.1444 /T 47.2660
1989-Sep-08 18:54 15 27 10.30 -22 47 44.2 121.57 -81.60 13.26 18.41 1.2839470128 3.94468 1.2328703177 7.74518 69.1030 /T 47.1255
1989-Sep-09 18:54 15 30 42.19 -23 20 10.0 122.10 -80.53 13.27 18.42 1.2862814143 4.13171 1.2374097155 7.97115 69.0623 /T 46.9809
1989-Sep-10 18:54 15 34 15.85 -23 52 09.7 122.62 -79.43 13.29 18.43 1.2887233577 4.31713 1.2420799220 8.19814 69.0223 /T 46.8322
1989-Sep-11 18:54 15 37 51.27 -24 23 42.6 123.12 -78.29 13.31 18.43 1.2912718948 4.50087 1.2468815345 8.42617 68.9828 /T 46.6795
1989-Sep-12 18:54 15 41 28.45 -24 54 47.8 123.60 -77.13 13.33 18.44 1.2939260452 4.68289 1.2518151556 8.65526 68.9437 /T 46.5230
1989-Sep-13 18:54 15 45 07.38 -25 25 24.6 124.07 -75.92 13.35 18.45 1.2966847976 4.86314 1.2568813959 8.88540 68.9048 /T 46.3628
1989-Sep-14 18:54 15 48 48.03 -25 55 32.0 124.52 -74.69 13.37 18.46 1.2995471110 5.04156 1.2620808666 9.11660 68.8660 /T 46.1990
****************************************************************************************************************************************************
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._(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)
dRA*cosD d(DEC)/dt =
The rate of change of target apparent RA and DEC (airless). d(RA)/dt is
multiplied by the cosine of the declination. Units: ARCSECONDS PER HOUR
T-mag N-mag =
Comet's approximate apparent visual total magnitude ("T-mag") and nuclear
magnitude ("N-mag") by following definitions:
T-mag = M1 + 5*log10(delta) + k1*log10(r)
N-mag = M2 + 5*log10(delta) + k2*log10(r) + phcof*beta
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-O-T /r =
Sun-Observer-Target angle; target's apparent solar elongation seen from
observer location at print-time. If negative, the target center is behind
the Sun. Angular units: DEGREES.
The '/r' column is a Sun-relative code, output for observing sites
with defined rotation models only.
/T indicates target trails Sun (evening sky)
/L indicates target leads Sun (morning sky)
NOTE: The S-O-T solar elongation angle is the total separation in any
direction. It does not indicate the angle of Sun leading or trailing.
S-T-O =
Sun-Target-Observer angle; target's apparent PHASE ANGLE as seen at
observer's location at print time. Units: DEGREES
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
****************************************************************************************************************************************************
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