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JPL Small-Body Database Browser
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91997 (1999 VQ135)
Classification: Main-belt Asteroid          SPK-ID: 2091997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0790765463976731 4.148e-08  
a 2.921341588119515 2.3875e-08 au
q 2.69033198448313 1.2749e-07 au
i 5.431051129038606 4.7727e-06 deg
node 250.4194369799383 5.3121e-05 deg
peri 192.2443832494515 6.3281e-05 deg
M 4.845020548313956 3.3926e-05 deg
tp 2458975.954885554231
(2020-May-06.45488555)
0.00017183 TDB
period 1823.777858599978
4.99
2.2358e-05
6.121e-08
d
yr
n .1973924610952091 2.4199e-09 deg/d
Q 3.1523511917559 2.5763e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7762 days (21.25 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52881  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:40:51  

Additional Information
 Earth MOID = 1.70649 au 
 Jupiter MOID = 2.04568 au 
 T_jup = 3.268 
[ 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 15.1   n/a MPO453360  
diameter diameter 5.088 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91997 (1999 VQ135)          Discovered 1999-Nov-08 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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