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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07018241072377729 5.4914e-08  
a 3.177718217740473 3.2701e-08 au
q 2.954698292618582 1.7466e-07 au
i 15.65371935096053 6.1874e-06 deg
node 54.74085129825297 1.7868e-05 deg
peri 351.6441754422194 3.9881e-05 deg
M 305.136376906553 3.7797e-05 deg
tp 2459711.821428948145
(2022-May-12.32142895)
0.00021931 TDB
period 2069.052461737451
5.66
3.1938e-05
8.744e-08
d
yr
n .1739926882751422 2.6858e-09 deg/d
Q 3.400738142862364 3.4996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      7972 days (21.83 yr)  
   first obs. used      1999-10-10  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54711  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:03:02  

Additional Information
 Earth MOID = 1.96528 au 
 Jupiter MOID = 1.98711 au 
 T_jup = 3.139 
[ 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 14.69   n/a E2021B10  
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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