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74768 (1999 RJ222)
Classification: Main-belt Asteroid          SPK-ID: 2074768
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .260759072068516 3.941e-08  
a 2.313201711757527 7.8815e-09 au
q 1.710013379892331 9.1756e-08 au
i 2.976853716063307 4.2335e-06 deg
node 36.37141078196974 8.4327e-05 deg
peri 285.6914844027854 8.463e-05 deg
M 330.5568096518107 8.9215e-06 deg
tp 2459105.599596884248
(2020-Sep-13.09959688)
3.2169e-05 TDB
period 1285.046030368651
3.52
6.5675e-06
1.798e-08
d
yr
n .280145606843923 1.4318e-09 deg/d
Q 2.916390043622722 9.9366e-09 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      8120 days (22.23 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5479  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:46  

Additional Information
 Earth MOID = .700639 au 
 Jupiter MOID = 2.42189 au 
 T_jup = 3.535 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO436306  

74768 (1999 RJ222)          Discovered 1999-Sep-07 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RJ222 = 2002 GS13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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