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JPL Small-Body Database Browser
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233685 (2008 RG121)
Classification: Main-belt Asteroid          SPK-ID: 2233685
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1276233342471774 8.008e-08  
a 2.42169723415989 2.439e-08 au
q 2.112632158599237 1.8352e-07 au
i .5318092321349085 6.7948e-06 deg
node 205.5009646402207 0.00067123 deg
peri 327.2086259849851 0.00067151 deg
M 131.4175832134259 2.2016e-05 deg
tp 2458098.007977963197
(2017-Dec-10.50797796)
8.1253e-05 TDB
period 1376.506274959165
3.77
2.0795e-05
5.693e-08
d
yr
n .2615316810020933 3.951e-09 deg/d
Q 2.730762309720542 2.7503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   data-arc span      6523 days (17.86 yr)  
   first obs. used      2001-11-15  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62362  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 01:36:53  

Additional Information
 Earth MOID = 1.11834 au 
 Jupiter MOID = 2.23623 au 
 T_jup = 3.502 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO450070  

233685 (2008 RG121)          Discovered 2008-Sep-02 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2008 RG121 = 2004 RY354 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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