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JPL Small-Body Database Browser
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212738 (2007 RJ271)
Classification: Main-belt Asteroid          SPK-ID: 2212738
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08053471244056205 6.4541e-08  
a 2.781028201471458 2.9306e-08 au
q 2.55705889497686 1.8364e-07 au
i 4.084509921153295 6.9801e-06 deg
node 52.32984937665247 7.842e-05 deg
peri 10.19811155849428 8.6986e-05 deg
M 174.6643664469735 3.7876e-05 deg
tp 2457778.620158694799
(2017-Jan-25.12015869)
0.00017527 TDB
period 1693.973126222617
4.64
2.6776e-05
7.331e-08
d
yr
n .2125181293771539 3.3592e-09 deg/d
Q 3.004997507966055 3.1666e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      8793 days (24.07 yr)  
   first obs. used      1995-04-04  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57245  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:58:46  

Additional Information
 Earth MOID = 1.56973 au 
 Jupiter MOID = 2.24074 au 
 T_jup = 3.325 
[ 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 MPO437021  

212738 (2007 RJ271)          Discovered 2007-Sep-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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