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91973 (1999 VL93)
Classification: Main-belt Asteroid          SPK-ID: 2091973
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0325079486530385 4.5222e-08  
a 3.06873364046605 2.0019e-08 au
q 2.968975404851927 1.3973e-07 au
i 10.77678851705708 5.316e-06 deg
node 199.6637860242928 1.9914e-05 deg
peri 307.3706605738721 8.0967e-05 deg
M 247.8748647297815 8.2084e-05 deg
tp 2460008.058064419228
(2023-Mar-04.55806442)
0.00045043 TDB
period 1963.528540325419
5.38
1.9214e-05
5.261e-08
d
yr
n .1833434007230354 1.7941e-09 deg/d
Q 3.168491876080172 2.067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1126  
   data-arc span      10170 days (27.84 yr)  
   first obs. used      1993-09-15  
   last obs. used      2021-07-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50458  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:55  

Additional Information
 Earth MOID = 1.98993 au 
 Jupiter MOID = 1.82473 au 
 T_jup = 3.204 
[ 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 14.20   n/a E2021B10  
diameter diameter 4.740 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.216   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91973 (1999 VL93)          Discovered 1999-Nov-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 VL93 = 1999 TF15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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