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91980 (1999 VD98)
Classification: Main-belt Asteroid          SPK-ID: 2091980
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01595012151996588 5.3241e-08  
a 3.047239717037299 2.7956e-08 au
q 2.998635873250088 1.6615e-07 au
i 10.30449756778358 6.2756e-06 deg
node 49.68558612266624 2.5989e-05 deg
peri 204.7011591513283 0.00016982 deg
M 97.66429025563772 0.0001685 deg
tp 2458473.401652460008
(2018-Dec-20.90165246)
0.00090973 TDB
period 1942.935382192505
5.32
2.6738e-05
7.32e-08
d
yr
n .1852866561078105 2.5498e-09 deg/d
Q 3.09584356082451 2.8402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      732  
   data-arc span      8532 days (23.36 yr)  
   first obs. used      1996-03-21  
   last obs. used      2019-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:40:50  

Additional Information
 Earth MOID = 1.98774 au 
 Jupiter MOID = 1.88923 au 
 T_jup = 3.213 
[ 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 14.4   n/a MPO436415  

91980 (1999 VD98)          Discovered 1999-Nov-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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