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357274 (2002 RA221)
Classification: Main-belt Asteroid          SPK-ID: 2357274
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 .1849038803159026 8.5215e-08  
a 2.669318239789019 2.912e-08 au
q 2.175750939454015 2.3318e-07 au
i 3.653744302757201 6.8594e-06 deg
node 50.38780114652401 0.0001625 deg
peri 315.1967963488919 0.00016435 deg
M 10.39325629592105 2.6215e-05 deg
tp 2458954.511621802591
(2020-Apr-15.01162180)
0.00011562 TDB
period 1592.938313044837
4.36
2.6066e-05
7.136e-08
d
yr
n .2259974520368429 3.6981e-09 deg/d
Q 3.162885540124024 3.4504e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      5679 days (15.55 yr)  
   first obs. used      2002-08-30  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57149  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 01:51:58  

Additional Information
 Earth MOID = 1.1761 au 
 Jupiter MOID = 2.29885 au 
 T_jup = 3.354 
[ 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 17.0   n/a MPO440600  

357274 (2002 RA221)          Discovered 2002-Sep-15 by NEAT at Palomar
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

Alternate Designations
 2002 RA221 = 2011 UV135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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