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22P/Kopff
Classification: Jupiter-family Comet          SPK-ID: 1000054
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


:
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL K154/5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5473381591556946 1.1455e-07  
a 3.449680130638605 6.7975e-07 AU
q 1.561538558258895 2.6166e-07 AU
i 4.73691231296802 8.6156e-06 deg
node 120.8724870940184 7.1132e-05 deg
peri 162.761199036012 7.5899e-05 deg
M 279.8391470155533 8.6342e-05 deg
tp 2457320.606507777525
(2015-Oct-25.10650778)
0.00071492 JED
period 2340.273784715189
6.41
0.00069171
1.894e-06
d
yr
n .1538281556419742 4.5467e-08 deg/d
Q 5.337821703018315 1.0518e-06 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.427598041114031E-9 2.81E-11
A2 [EST] -9.406785946176775E-11 1.373E-11
A3 [EST] -1.397782669080353E-9 7.896E-11
DT [EST] -251.410318485143 5.013
  Orbit Determination Parameters
   # obs. used (total)      2486  
   data-arc span      4483 days (12.27 yr)  
   first obs. used      2001-12-19  
   last obs. used      2014-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .67426  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-May-12 11:17:28  

Additional Information
 Earth MOID = .545402 AU 
 T_jup = 2.867 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 12.7 mag 1. K154/5 2 parameter fit from 514 observations, autocmod 2.5c
comet total magnitude slope K1 7.   n/a K154/5 autocmod 2.5c
diameter diameter 3.0 km 0.4 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  
geometric albedo albedo 0.05   0.01 n/a  

22P/Kopff          Discovered 1906-Aug-22 by Kopff at Konigstuhl Observatory, Germany
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1996.6           1994s 
 1990.2       1990 I   1988k 
 1983.8       1983 XIII   1982k 
 1977.4       1977 V   1976b 
 1971.0       1970 XI   1970c 
 1964.6       1964 III   1963i 
 1958.1       1958 I   1958d 
 1951.7       1951 VII   1951e 
 1945.3       1945 V   1945b 
 1938.9       1939 II   1939e 
 1932.5       1932 III   1932e 
 1926.1       1926 II   1926c 
 1919.7   22P/1919 O1   1919 I   1919a 
 1906.9   22P/1906 Q1   1906 IV   1906e 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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