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20908 (2819 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2020908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .00628970085693356 4.0694e-08  
a 2.882913533015049 1.4628e-08 au
q 2.864780869295979 1.2004e-07 au
i 1.965936490416039 4.2861e-06 deg
node 177.1767634498369 0.00010897 deg
peri 13.55227304621332 0.00032524 deg
M 286.7289972669752 0.00030781 deg
tp 2459564.394495612454
(2021-Dec-15.89449561)
0.0015294 TDB
period 1787.910817841694
4.90
1.3608e-05
3.726e-08
d
yr
n .2013523249636019 1.5325e-09 deg/d
Q 2.90104619673412 1.472e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1044  
   data-arc span      22064 days (60.41 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-02-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52294  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:34:18  

Additional Information
 Earth MOID = 1.85804 au 
 Jupiter MOID = 2.05322 au 
 T_jup = 3.293 
[ 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 14.9   n/a MPO333011  

20908 (2819 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2819 P-L = 1992 EH36 = 1994 PW22 = 1999 RB182 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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