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6651 (1991 RV9)
Classification: Main-belt Asteroid          SPK-ID: 2006651
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06522319450255094 4.6068e-08  
a 2.377617477779399 1.3252e-08 AU
q 2.222541670573528 1.1347e-07 AU
i 3.812873162789255 7.3281e-06 deg
node 11.76005523077952 6.4179e-05 deg
peri 293.3504756507873 8.709e-05 deg
M 171.7409070021969 5.9023e-05 deg
tp 2456361.673894566239
(2013-Mar-10.17389457)
0.00022014 JED
period 1339.095047129407
3.67
1.1196e-05
3.065e-08
d
yr
n .2688382731096836 2.2477e-09 deg/d
Q 2.532693284985269 1.4117e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      22951 days (62.84 yr)  
   first obs. used      1951-12-01  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47807  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:07:48  

Additional Information
 Earth MOID = 1.212 AU 
 T_jup = 3.535 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO279585  

6651 (1991 RV9)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 RV9 = 1990 HL4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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