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JPL Small-Body Database Browser
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91916 (1999 VL31)
Classification: Main-belt Asteroid          SPK-ID: 2091916
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580235014840377 4.2421e-08  
a 3.050207521662014 2.2044e-08 au
q 2.568203048836034 1.2919e-07 au
i 1.462711503540131 4.9305e-06 deg
node 188.0696532448245 0.00019734 deg
peri 231.0839980757115 0.00019804 deg
M 307.4061800345732 1.6662e-05 deg
tp 2459284.765872093352
(2021-Mar-11.26587209)
9.0935e-05 TDB
period 1945.774503941304
5.33
2.1093e-05
5.775e-08
d
yr
n .1850163003322299 2.0057e-09 deg/d
Q 3.532211994487994 2.5527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      600  
   data-arc span      7184 days (19.67 yr)  
   first obs. used      1998-09-16  
   last obs. used      2018-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5902  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:39:24  

Additional Information
 Earth MOID = 1.58095 au 
 Jupiter MOID = 1.80577 au 
 T_jup = 3.217 
[ 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 MPO449565  

91916 (1999 VL31)          Discovered 1999-Nov-03 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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