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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2605999567942157 4.0212e-08  
a 2.312408030708927 9.5182e-09 au
q 1.709794597815584 9.2813e-08 au
i 2.977347805984251 4.4292e-06 deg
node 36.37763439295713 8.6275e-05 deg
peri 285.7615801219578 8.6614e-05 deg
M 218.3687638180057 1.0296e-05 deg
tp 2459105.802765713779
(2020-Sep-13.30276571)
3.8932e-05 TDB
period 1284.384720212494
3.52
7.9301e-06
2.171e-08
d
yr
n .2802898495557001 1.7306e-09 deg/d
Q 2.915021463602271 1.1999e-08 au
  Orbit Determination Parameters
   # obs. used (total)      570  
   data-arc span      7676 days (21.02 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57331  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:39:07  

Additional Information
 Earth MOID = .699565 au 
 Jupiter MOID = 2.42058 au 
 T_jup = 3.536 
[ 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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