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52313 (1991 VH9)
Classification: Main-belt Asteroid          SPK-ID: 2052313
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1852367914306328 3.0677e-08  
a 2.254336613587744 6.524e-09 au
q 1.836750532482152 6.9846e-08 au
i 4.240779533978036 4.0661e-06 deg
node 193.5825415331699 4.9948e-05 deg
peri 77.84014346149485 5.1547e-05 deg
M 29.93070150695509 1.5457e-05 deg
tp 2459293.712342462005
(2021-Mar-20.21234246)
5.2863e-05 TDB
period 1236.307699138948
3.38
5.3668e-06
1.469e-08
d
yr
n .2911896449813663 1.2641e-09 deg/d
Q 2.671922694693336 7.7325e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1258  
   data-arc span      10857 days (29.72 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:08:15  

Additional Information
 Earth MOID = .826366 au 
 Jupiter MOID = 2.43267 au 
 T_jup = 3.598 
[ 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 15.48   n/a E2021B10  
diameter diameter 1.740 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.255   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52313 (1991 VH9)          Discovered 1991-Nov-04 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 VH9 = 1991 VU12 = 2000 DH75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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