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2039 Payne-Gaposchkin (1974 CA)
Classification: Main-belt Asteroid          SPK-ID: 2002039
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1337949706662084 5.6981e-08  
a 3.176826502803382 2.8329e-08 AU
q 2.751783094049169 1.7397e-07 AU
i 2.525754499520819 5.8408e-06 deg
node 95.87660747518633 0.00015288 deg
peri 41.78725984533476 0.00015551 deg
M 83.89672450202083 2.7248e-05 deg
tp 2456518.517602865287
(2013-Aug-14.01760287)
0.00015441 JED
period 2068.181612552908
5.66
2.7664e-05
7.574e-08
d
yr
n .1740659513724356 2.3283e-09 deg/d
Q 3.601869911557594 3.2119e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1197  
   data-arc span      14742 days (40.36 yr)  
   first obs. used      1974-02-14  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50986  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:53:01  

Additional Information
 Earth MOID = 1.76644 AU 
 T_jup = 3.185 
[ 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
absolute magnitude H 12.6 mag n/a MPO279535  
diameter diameter 23 km n/a DASTCOM value unverified
geometric albedo albedo 0.0253   0.007 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 2: from the PDS IMPS singleton file

2039 Payne-Gaposchkin (1974 CA)          Discovered 1974-Feb-14 by Harvard College at Agassiz Station
Discovered at Oak Ridge Observatory (until 1981 Harvard College's Agassiz Station). The principal observers are R. E. McCrosky, C.-Y. Shao, G. Schwartz, and J. H. Bulger, with some assistance from others.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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