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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2313450720721376 6.4837e-08  
a 2.320057516498079 7.9325e-09 au
q 1.783323643132326 1.5276e-07 au
i 7.09140232522922 6.1223e-06 deg
node 28.63423422109301 3.3157e-05 deg
peri 320.4057417125723 3.4338e-05 deg
M 216.12812546411 9.2742e-06 deg
tp 2459116.345867453729
(2020-Sep-23.84586745)
3.4682e-05 TDB
period 1290.763138260336
3.53
6.6199e-06
1.812e-08
d
yr
n .2789047729432378 1.4304e-09 deg/d
Q 2.856791389863832 9.7677e-09 au
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      21404 days (58.60 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:00:21  

Additional Information
 Earth MOID = .78365 au 
 Jupiter MOID = 2.58343 au 
 T_jup = 3.532 
[ 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 15.6   n/a MPO432682  

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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