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Ephemeris / WWW_USER Thu Jul  9 00:52:27 2009  Pasadena, USA     / Horizons    
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Target body name: 22P/Kopff                       {source: JPL#K083/9}
Center body name: Earth (399)                     {source: DE405}
Center-site name: (user defined site below)
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Start time      : A.D. 2009-Jul-09 00:00:00.0000 UT      
Stop  time      : A.D. 2009-Aug-08 00:00:00.0000 UT      
Step-size       : 1440 minutes
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Target pole/equ : No model available
Target radii    : 1.7 km                                                       
Center geodetic : 21.0833000,52.5834461,.00034815 {E-lon(deg),Lat(deg),Alt(km)}
Center cylindric: 21.0833000,3883.60289,5042.5089 {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}
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                              
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.090708.p090929                                           
EOP coverage    : DATA-BASED 1962-JAN-20 TO 2009-JUL-08. PREDICTS-> 2009-SEP-28
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 )                           
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Initial FK5/J2000.0 heliocentric ecliptic osculating elements (AU, DAYS, DEG):
  EPOCH=  2454841.5 != 2009-Jan-10.0000000 (CT)   Residual RMS= 1.122          
    EC= .5442395727198547  QR= 1.577601106228556  TP= 2454976.927115339        
    OM= 120.897134725929   W= 162.8182427538526   IN= 4.724409000211078        
Comet physical & dynamic parameters (KM, SEC; A1,A2,A3=AU/d^2; DT=days):
    GM= n.a.               RAD= 1.67              A1= 4.329596D-10             
    A2= -8.206833D-10      A3= -2.393084E-9       DT= n.a.                     
    M1= 10.9               M2= 14.2               k1= 10.                      
    k2= 5.                 PHCOF= .030                                         
**************************************************************************************************************
 Date__(UT)__HR:MN     R.A._(ICRF/J2000.0)_DEC  T-mag  N-mag            delta      deldot    S-O-T /r    S-T-O
**************************************************************************************************************
$$SOE
 2009-Jul-09 00:00 Am  22 50 27.27 -09 06 04.7  12.61  15.74 .818780597429271  -5.5169140 126.2776 /L  29.9899
 2009-Jul-10 00:00 Am  22 51 18.98 -09 07 26.7  12.61  15.72 .815728675476613  -5.3653046 127.0399 /L  29.6097
 2009-Jul-11 00:00 Am  22 52 08.29 -09 09 04.7  12.61  15.71 .812763447616657  -5.2103518 127.8128 /L  29.2208
 2009-Jul-12 00:00 Am  22 52 55.20 -09 10 58.8  12.61  15.69 .809886866534141  -5.0518377 128.5963 /L  28.8230
 2009-Jul-13 00:00 Am  22 53 39.69 -09 13 09.0  12.61  15.68 .807101012662158  -4.8895365 129.3906 /L  28.4164
 2009-Jul-14 00:00 Am  22 54 21.74 -09 15 35.2  12.61  15.66 .804408098918830  -4.7232138 130.1958 /L  28.0009
 2009-Jul-15 00:00 Am  22 55 01.34 -09 18 17.4  12.61  15.64 .801810475831778  -4.5526263 131.0118 /L  27.5765
 2009-Jul-16 00:00 Am  22 55 38.47 -09 21 15.7  12.62  15.63 .799310636942982  -4.3775213 131.8386 /L  27.1433
 2009-Jul-17 00:00 Am  22 56 13.13 -09 24 29.8  12.62  15.61 .796911223501945  -4.1976399 132.6763 /L  26.7012
 2009-Jul-18 00:00 Am  22 56 45.30 -09 27 59.7  12.62  15.60 .794615026098150  -4.0127253 133.5249 /L  26.2503
 2009-Jul-19 00:00 Am  22 57 14.99 -09 31 45.1  12.62  15.58 .792424979324604  -3.8225387 134.3843 /L  25.7907
 2009-Jul-20 00:00 Am  22 57 42.19 -09 35 46.1  12.62  15.57 .790344144641231  -3.6268839 135.2545 /L  25.3223
 2009-Jul-21 00:00 A   22 58 06.91 -09 40 02.1  12.63  15.55 .788375677741203  -3.4256356 136.1354 /L  24.8453
 2009-Jul-22 00:00 A   22 58 29.15 -09 44 33.1  12.63  15.54 .786522781103843  -3.2187598 137.0268 /L  24.3598
 2009-Jul-23 00:00 A   22 58 48.93 -09 49 18.7  12.63  15.52 .784788649237174  -3.0063171 137.9286 /L  23.8659
 2009-Jul-24 00:00 A   22 59 06.27 -09 54 18.4  12.64  15.50 .783176419559311  -2.7884404 138.8407 /L  23.3638
 2009-Jul-25 00:00 A   22 59 21.19 -09 59 32.0  12.64  15.49 .781689141378387  -2.5652963 139.7628 /L  22.8537
 2009-Jul-26 00:00 A   22 59 33.71 -10 04 59.0  12.65  15.47 .780329768319354  -2.3370455 140.6948 /L  22.3357
 2009-Jul-27 00:00 A   22 59 43.86 -10 10 38.9  12.65  15.46 .779101170445671  -2.1038157 141.6364 /L  21.8101
 2009-Jul-28 00:00 A   22 59 51.68 -10 16 31.2  12.66  15.45 .778006156898676  -1.8656921 142.5873 /L  21.2771
 2009-Jul-29 00:00 A   22 59 57.19 -10 22 35.6  12.67  15.43 .777047499942415  -1.6227211 143.5473 /L  20.7370
 2009-Jul-30 00:00 A   23 00 00.42 -10 28 51.4  12.67  15.42 .776227954711465  -1.3749204 144.5163 /L  20.1899
 2009-Jul-31 00:00 A   23 00 01.43 -10 35 18.3  12.68  15.40 .775550272726982  -1.1222896 145.4937 /L  19.6361
 2009-Aug-01 00:00 A   23 00 00.23 -10 41 55.5  12.69  15.39 .775017209752235  -0.8648189 146.4795 /L  19.0760
 2009-Aug-02 00:00 A   22 59 56.88 -10 48 42.6  12.70  15.38 .774631529631078  -0.6024944 147.4732 /L  18.5099
 2009-Aug-03 00:00 A   22 59 51.42 -10 55 39.1  12.71  15.36 .774396005857479  -0.3353007 148.4745 /L  17.9379
 2009-Aug-04 00:00  m  22 59 43.89 -11 02 44.2  12.72  15.35 .774313422251631  -0.0632217 149.4831 /L  17.3606
 2009-Aug-05 00:00  m  22 59 34.34 -11 09 57.5  12.73  15.34 .774386573588217   0.2137600 150.4985 /L  16.7782
 2009-Aug-06 00:00  m  22 59 22.83 -11 17 18.3  12.74  15.33 .774618266502036   0.4956634 151.5202 /L  16.1911
 2009-Aug-07 00:00  m  22 59 09.41 -11 24 45.8  12.75  15.32 .775011320577863   0.7825093 152.5479 /L  15.5998
 2009-Aug-08 00:00  m  22 58 54.13 -11 32 19.6  12.76  15.30 .775568569270489   1.0743195 153.5809 /L  15.0047
$$EOE
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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 (OBSERVING SITE)
  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 (OBSERVING SITE)
  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 center.
Corrected for light-time. Units: HMS (HH MM SS.ff) and DMS (DD MM SS.f)
 
 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
 
 delta  deldot =
   Range ("delta") and range-rate ("delta-dot") of target center with respect
to the observer at the instant light seen by the observer at print-time would
have left the target center (print-time minus down-leg light-time); the
distance traveled by a light ray emanating from the center of the target and
recorded by the observer at print-time. "deldot" is a projection of the
velocity vector along this ray, the light-time-corrected line-of-sight from the
coordinate center, and indicates relative motion. A positive "deldot" means the
target center is moving away from the observer (coordinate center). A negative
"deldot" means the target center is moving toward the 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 (~ PHASE ANGLE) angle: the vertex angle at target center
formed by a vector to the apparent center of the Sun and a vector intersecting
the observer at print-time. This measurable angle is within 20 arcseconds
(0.006 deg) of the reduced PHASE ANGLE at observer's location at print time.
The difference is due to down-leg stellar aberration affecting measured target
position but not apparent solar illumination direction.  When computing phase,
Horizons uses the true phase angle, not S-T-O, but the resulting difference
in illuminated fraction is less than 0.001%.
   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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