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91951 (1999 VS68)
Classification: Main-belt Asteroid          SPK-ID: 2091951
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07179122973448628 5.6555e-08  
a 3.180021817262452 3.322e-08 au
q 2.951724140418685 1.7968e-07 au
i 15.67392662238337 6.4106e-06 deg
node 54.96443292487747 1.7998e-05 deg
peri 350.801815956159 4.0194e-05 deg
M 237.0876542066211 3.8115e-05 deg
tp 2459707.690768329455
(2022-May-08.19076833)
0.00022478 TDB
period 2071.302723540716
5.67
3.2456e-05
8.886e-08
d
yr
n .173803662742552 2.7234e-09 deg/d
Q 3.408319494106219 3.5604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      7554 days (20.68 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54437  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:42:16  

Additional Information
 Earth MOID = 1.9629 au 
 Jupiter MOID = 1.97834 au 
 T_jup = 3.138 
[ 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 14.7   n/a MPO474799  
diameter diameter 8.401 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91951 (1999 VS68)          Discovered 1999-Nov-04 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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