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117893 (2781 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117893
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2310295528920701 6.4324e-08  
a 2.321115505714379 7.9577e-09 au
q 1.784869228218334 1.517e-07 au
i 7.088166342717511 6.0345e-06 deg
node 28.60919318439833 3.2802e-05 deg
peri 320.2873934245688 3.3966e-05 deg
M 327.7714503962097 9.4109e-06 deg
tp 2459116.133006205680
(2020-Sep-23.63300621)
3.4101e-05 TDB
period 1291.646156771168
3.54
6.6424e-06
1.819e-08
d
yr
n .2787141030171306 1.4333e-09 deg/d
Q 2.857361783210423 9.7961e-09 au
  Orbit Determination Parameters
   # obs. used (total)      804  
   data-arc span      21816 days (59.73 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:50:52  

Additional Information
 Earth MOID = .786065 au 
 Jupiter MOID = 2.58615 au 
 T_jup = 3.531 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO475035  

117893 (2781 P-L)          Discovered 1960-Sep-26 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2781 P-L = 1999 VY79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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