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JPL Small-Body Database Browser
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172251 (2002 RR237)
Classification: Main-belt Asteroid          SPK-ID: 2172251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08652070422561441 4.7415e-08  
a 2.663077833148606 2.5328e-08 au
q 2.432666463616965 1.3023e-07 au
i .9907922063713772 5.5336e-06 deg
node 112.3290262854466 0.00040253 deg
peri 172.5763395504109 0.00040471 deg
M 75.85213509933213 4.3251e-05 deg
tp 2458666.043588723044
(2019-Jul-01.54358872)
0.00018945 TDB
period 1587.355555674587
4.35
2.2645e-05
6.2e-08
d
yr
n .2267922890451654 3.2354e-09 deg/d
Q 2.893489202680246 2.7519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      5689 days (15.58 yr)  
   first obs. used      2002-08-20  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63612  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:00:44  

Additional Information
 Earth MOID = 1.41623 au 
 Jupiter MOID = 2.21146 au 
 T_jup = 3.379 
[ 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 16.6   n/a MPO436856  

172251 (2002 RR237)          Discovered 2002-Sep-15 by Matson, R. at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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