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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849474265169728 3.3303e-08  
a 2.253869657460019 7.9442e-09 au
q 1.837022264608098 7.7107e-08 au
i 4.240411118395197 4.259e-06 deg
node 193.5962021847047 5.0171e-05 deg
peri 77.79162556470665 5.2314e-05 deg
M 274.6155706087621 1.8995e-05 deg
tp 2459293.635085147650
(2021-Mar-20.13508515)
6.6232e-05 TDB
period 1235.923591754813
3.38
6.5344e-06
1.789e-08
d
yr
n .2912801425603163 1.54e-09 deg/d
Q 2.670717050311941 9.4135e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1184  
   data-arc span      10476 days (28.68 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:18:17  

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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