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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132349102526961 4.2997e-08  
a 3.177139214153231 1.5594e-08 au
q 2.756647690556837 1.3732e-07 au
i 2.525360756772267 4.0559e-06 deg
node 95.86335927010535 0.00010713 deg
peri 42.05547152795945 0.00010864 deg
M 71.50124466897525 1.6984e-05 deg
tp 2458589.668348450211
(2019-Apr-16.16834845)
9.7063e-05 TDB
period 2068.486992676063
5.66
1.5229e-05
4.169e-08
d
yr
n .1740402532259858 1.2814e-09 deg/d
Q 3.597630737749625 1.7658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1942  
   data-arc span      16790 days (45.97 yr)  
   first obs. used      1974-02-14  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:11:17  

Additional Information
 Earth MOID = 1.7709 au 
 Jupiter MOID = 1.43124 au 
 T_jup = 3.185 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO384767  
diameter diameter 13.612 km 0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 27.633 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.095   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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