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21916 (1999 VU37)
Classification: Main-belt Asteroid          SPK-ID: 2021916
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .123298056815142 1.6404e-08  
a 2.345412608948376 6.7919e-09 au
q 2.056227791835309 3.7633e-08 au
i 7.245639545721907 8.0565e-07 deg
node 64.54865776938639 5.2877e-06 deg
peri 244.4145736105748 5.9867e-06 deg
M 61.56777911142 4.6223e-06 deg
tp 2458976.123020496042
(2020-May-06.62302050)
1.6868e-05 TDB
period 1311.980288833288
3.59
5.6989e-06
1.56e-08
d
yr
n .274394366336204 1.1919e-09 deg/d
Q 2.634597426061444 7.6294e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2248  
   data-arc span      10829 days (29.65 yr)  
   first obs. used      1991-07-13  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47906  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:55:24  

Additional Information
 Earth MOID = 1.05173 au 
 Jupiter MOID = 2.58477 au 
 T_jup = 3.540 
[ 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 14.18   n/a E2021B10  

21916 (1999 VU37)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VU37 = 1991 OB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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