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91901 (1999 VB15)
Classification: Main-belt Asteroid          SPK-ID: 2091901
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1541832725328104 3.6605e-08  
a 3.023267756611819 2.1299e-08 au
q 2.55713044015448 1.147e-07 au
i 3.086522735122904 5.0542e-06 deg
node 336.4939090686325 8.4347e-05 deg
peri 300.7118397242995 8.617e-05 deg
M 40.46627285151565 1.7041e-05 deg
tp 2458784.673856757838
(2019-Oct-28.17385676)
9.0748e-05 TDB
period 1920.053567875557
5.26
2.0291e-05
5.555e-08
d
yr
n .1874947689080998 1.9814e-09 deg/d
Q 3.489405073069157 2.4583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      9409 days (25.76 yr)  
   first obs. used      1994-10-27  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:20:41  

Additional Information
 Earth MOID = 1.5425 au 
 Jupiter MOID = 1.65613 au 
 T_jup = 3.225 
[ 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 15.6   n/a MPO436414  
diameter diameter 3.629 km 0.484 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.064   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91901 (1999 VB15)          Discovered 1999-Nov-02 by Spacewatch at Kitt Peak
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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