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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0652894825428833 4.4568e-08  
a 2.376540800649342 1.175e-08 au
q 2.221377681532897 1.085e-07 au
i 3.814596500368267 5.7303e-06 deg
node 11.7326224797233 6.1904e-05 deg
peri 294.1804433635842 7.7666e-05 deg
M 332.2457292624602 4.9294e-05 deg
tp 2457703.667678622116
(2016-Nov-11.16767862)
0.0001834 JED
period 1338.185559086822
3.66
9.9241e-06
2.717e-08
d
yr
n .2690209870787008 1.9951e-09 deg/d
Q 2.531703919765787 1.2517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1412  
   data-arc span      23502 days (64.34 yr)  
   first obs. used      1951-12-01  
   last obs. used      2016-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47781  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:56:31  

Additional Information
 Earth MOID = 1.20942 au 
 Jupiter MOID = 2.59992 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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