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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849474269316042 3.3316e-08  
a 2.253869657499086 7.947e-09 au
q 1.837022263705414 7.7133e-08 au
i 4.240411109911221 4.2599e-06 deg
node 193.5962019513331 5.0218e-05 deg
peri 77.79162564924934 5.2358e-05 deg
M 274.6155707026116 1.8996e-05 deg
tp 2459293.635084833074
(2021-Mar-20.13508483)
6.6236e-05 TDB
period 1235.923591786946
3.38
6.5367e-06
1.79e-08
d
yr
n .2912801425527431 1.5406e-09 deg/d
Q 2.670717051292757 9.4168e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1178  
   data-arc span      10425 days (28.54 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53099  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:21:16  

Additional Information
 Earth MOID = .826734 au 
 Jupiter MOID = 2.43577 au 
 T_jup = 3.599 
[ 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 15.5   n/a MPO459208  
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

[ show close-approach data ]
Alternate Designations
 1991 VH9 = 1991 VU12 = 2000 DH75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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