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91903 (1999 VA19)
Classification: Main-belt Asteroid          SPK-ID: 2091903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09356438357272652 4.8397e-08  
a 3.152486506800185 2.6182e-08 au
q 2.857526050070088 1.5687e-07 au
i 25.93796894993058 5.6834e-06 deg
node 236.8478821679589 1.1527e-05 deg
peri 133.5826805028531 3.1229e-05 deg
M 352.7658939711579 2.9581e-05 deg
tp 2459437.582858199381
(2021-Aug-11.08285820)
0.00016816 TDB
period 2044.458415844468
5.60
2.547e-05
6.973e-08
d
yr
n .1760857531804095 2.1936e-09 deg/d
Q 3.447446963530282 2.8632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      8828 days (24.17 yr)  
   first obs. used      1997-06-08  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:58  

Additional Information
 Earth MOID = 1.9066 au 
 Jupiter MOID = 2.04602 au 
 T_jup = 3.044 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.34   n/a E2021B10  
diameter diameter 8.642 km 1.767 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.049   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91903 (1999 VA19)          Discovered 1999-Nov-10 by Bell, G., Hug, G. at Farpoint
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 VA19 = 1997 LZ16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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