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524203 (2001 RA42)
Classification: Mars-crossing Asteroid          SPK-ID: 2524203
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5191340703080136 1.8365e-07  
a 3.119432406861539 3.408e-08 au
q 1.500028764436785 5.7808e-07 au
i 21.37280848898484 5.8404e-05 deg
node 351.101018339419 3.0985e-05 deg
peri 73.57340020202766 0.0001561 deg
M 153.3425380167422 7.941e-05 deg
tp 2458343.320171273577
(2018-Aug-12.82017127)
0.00043506 TDB
period 2012.388358328988
5.51
3.2978e-05
9.029e-08
d
yr
n .1788919114494036 2.9316e-09 deg/d
Q 4.738836049286293 5.1772e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      6417 days (17.57 yr)  
   first obs. used      2001-09-11  
   last obs. used      2019-04-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .63924  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 19:25:31  

Additional Information
 Earth MOID = .651825 au 
 Jupiter MOID = 1.82569 au 
 T_jup = 2.901 
[ 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 17.8   n/a MPO461230  

524203 (2001 RA42)          Discovered 2001-Sep-11 by LINEAR at Socorro
Reference: Last Updated: 2019-05-29

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