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91992 (1999 VD120)
Classification: Main-belt Asteroid          SPK-ID: 2091992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05721393674624132 3.6696e-08  
a 2.880487773480306 2.0775e-08 au
q 2.715683728210082 1.0534e-07 au
i 2.390269152978183 3.8442e-06 deg
node 162.3462356406986 0.00010973 deg
peri 134.5242948165661 0.00011683 deg
M 152.1023828155604 4.1509e-05 deg
tp 2458246.049070303408
(2018-May-07.54907030)
0.00020453 TDB
period 1785.654699572448
4.89
1.9318e-05
5.289e-08
d
yr
n .2016067272615458 2.181e-09 deg/d
Q 3.04529181875053 2.1963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      559  
   data-arc span      10193 days (27.91 yr)  
   first obs. used      1992-03-01  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56808  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:40:50  

Additional Information
 Earth MOID = 1.70051 au 
 Jupiter MOID = 2.06462 au 
 T_jup = 3.291 
[ 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 15.4   n/a MPO453360  

91992 (1999 VD120)          Discovered 1999-Nov-04 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 VD120 = 1992 EF31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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