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JPL Small-Body Database Browser
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442280 (2011 RE2)
Classification: Main-belt Asteroid          SPK-ID: 2442280
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2074914613829804 1.5135e-07  
a 2.644405811386202 4.7104e-08 au
q 2.095714185092033 4.2539e-07 au
i 3.9626858344441 1.0311e-05 deg
node 173.4317455662508 0.00010805 deg
peri 182.7742258386576 0.00014349 deg
M 8.810054817820935 6.9033e-05 deg
tp 2458962.061477036830
(2020-Apr-22.56147704)
0.00030075 TDB
period 1570.690370592235
4.30
4.1967e-05
1.149e-07
d
yr
n .2291985783705165 6.1239e-09 deg/d
Q 3.19309743768037 5.6877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      6255 days (17.13 yr)  
   first obs. used      1998-08-23  
   last obs. used      2015-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61634  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:30:11  

Additional Information
 Earth MOID = 1.09137 au 
 Jupiter MOID = 2.25467 au 
 T_jup = 3.359 
[ 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 17.8   n/a MPO353531  

442280 (2011 RE2)          Discovered 2007-Sep-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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