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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2056889299741699 4.0251e-08  
a 2.446874990474103 9.2142e-09 au
q 1.943579891902928 9.8131e-08 au
i 6.694659077792273 3.1311e-06 deg
node 71.15919085637215 3.7214e-05 deg
peri 276.6177684203296 3.7885e-05 deg
M 172.563953690634 7.1333e-06 deg
tp 2458330.362869492898
(2018-Jul-30.86286949)
2.7234e-05 TDB
period 1398.028741361938
3.83
7.8968e-06
2.162e-08
d
yr
n .2575054355815986 1.4545e-09 deg/d
Q 2.950170089045279 1.1109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1491  
   data-arc span      25200 days (68.99 yr)  
   first obs. used      1951-02-04  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50449  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:49:54  

Additional Information
 Earth MOID = .95099 au 
 Jupiter MOID = 2.50153 au 
 T_jup = 3.460 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456884.5 (2014-Aug-15.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2064693673957371 4.044e-08  
q 1.941565443102676 9.868e-08 au
tp 2456929.358165266206
(2014-Sep-28.85816527)
2.7472e-05 TDB
node 71.29793999843442 3.7271e-05 deg
peri 275.9655806681524 3.7921e-05 deg
i 6.690769398992552 3.1277e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1491  
   data-arc span      25200 days (68.99 yr)  
   first obs. used      1951-02-04  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50449  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:49:54  

Additional Information
 Jupiter MOID = 2.50153 au 
 T_jup = 3.460 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.635392169172182E-15 -3.979973513668541E-15 7.330761478332895E-14 7.234045406889444E-15 2.178477903682206E-15 -4.788401970499197E-15
q -3.979973513668541E-15 9.737746678248195E-15 -2.206361153209752E-13 -1.720775830586394E-14 -1.742485227229674E-14 1.169062450960597E-14
tp 7.330761478332895E-14 -2.206361153209752E-13 7.547274533834745E-10 2.027620645785854E-12 2.147767087292789E-10 -2.383315309343891E-13
node 7.234045406889444E-15 -1.720775830586394E-14 2.027620645785854E-12 1.389114429459025E-9 -1.378967586293527E-9 -1.777720623197715E-11
peri 2.178477903682206E-15 -1.742485227229674E-14 2.147767087292789E-10 -1.378967586293527E-9 1.437978375300612E-9 1.762287126858025E-11
i -4.788401970499197E-15 1.169062450960597E-14 -2.383315309343891E-13 -1.777720623197715E-11 1.762287126858025E-11 9.782517368096371E-12

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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