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22975 (1999 VR23)
Classification: Main-belt Asteroid          SPK-ID: 2022975
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2056889282085492 4.0556e-08  
a 2.4468749913087 9.4051e-09 au
q 1.94357989688611 9.9075e-08 au
i 6.694658684093975 3.2275e-06 deg
node 71.15919380099102 3.7675e-05 deg
peri 276.6177643189807 3.8427e-05 deg
M 172.5639542968585 7.2771e-06 deg
tp 2458330.362866795815
(2018-Jul-30.86286680)
2.7968e-05 TDB
period 1398.028742077212
3.83
8.0605e-06
2.207e-08
d
yr
n .257505435449851 1.4847e-09 deg/d
Q 2.95017008573129 1.134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      25172 days (68.92 yr)  
   first obs. used      1951-02-04  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51297  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 01:51:52  

Additional Information
 Earth MOID = .95099 au 
 Jupiter MOID = 2.50153 au 
 T_jup = 3.460 
[ 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 14.4   n/a MPO416947  
diameter diameter 2.894 km 0.646 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.483   0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22975 (1999 VR23)          Discovered 1999-Nov-14 by Juels, C. W. at Fountain Hills
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VR23 = 1998 KU56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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