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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06522463773349445 4.4677e-08  
a 2.376623211912808 1.1912e-08 au
q 2.221608823886781 1.0873e-07 au
i 3.814628852756979 5.8126e-06 deg
node 11.73354012228883 6.2023e-05 deg
peri 294.1087135477621 7.8114e-05 deg
M 278.5031602151814 4.9724e-05 deg
tp 2457703.454352384564
(2016-Nov-10.95435238)
0.00018531 JED
period 1338.255166045831
3.66
1.0061e-05
2.755e-08
d
yr
n .2690069944311884 2.0224e-09 deg/d
Q 2.531637599938835 1.2689e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1408  
   data-arc span      23203 days (63.53 yr)  
   first obs. used      1951-12-01  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47518  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:54:41  

Additional Information
 Earth MOID = 1.20818 au 
 Jupiter MOID = 2.59869 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
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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