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52312 (1991 VG9)
Classification: Main-belt Asteroid          SPK-ID: 2052312
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09524173749232348 3.5031e-08  
a 2.907210152667463 1.7634e-08 au
q 2.630322406472091 1.0916e-07 au
i 3.357203667535949 4.3907e-06 deg
node 91.27568183956595 7.7428e-05 deg
peri 213.9477050644131 8.1949e-05 deg
M 281.7588423745682 2.7437e-05 deg
tp 2458994.000993797625
(2020-May-24.50099380)
0.00013871 TDB
period 1810.56060603453
4.96
1.6473e-05
4.51e-08
d
yr
n .1988334435202741 1.8091e-09 deg/d
Q 3.184097898862835 1.9313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      989  
   data-arc span      10178 days (27.87 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52858  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:20:49  

Additional Information
 Earth MOID = 1.61522 au 
 Jupiter MOID = 2.00787 au 
 T_jup = 3.275 
[ 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 14.8   n/a MPO280040  
diameter diameter 2.956 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.266   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52312 (1991 VG9)          Discovered 1991-Nov-04 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 VG9 = 2000 PG15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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