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226131 (2002 RA44)
Classification: Mars-crossing Asteroid          SPK-ID: 2226131
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2562250478821366 3.6398e-08  
a 2.236721803355516 7.8719e-09 au
q 1.66361765219173 8.0624e-08 au
i 4.823158364040639 4.899e-06 deg
node 5.243872646271704 6.3303e-05 deg
peri 327.8622595238933 6.4594e-05 deg
M 115.0297177111611 1.3635e-05 deg
tp 2458610.087299752100
(2019-May-06.58729975)
4.4935e-05 TDB
period 1221.845753304904
3.35
6.4502e-06
1.766e-08
d
yr
n .2946362083972184 1.5554e-09 deg/d
Q 2.809825954519302 9.8889e-09 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      6912 days (18.92 yr)  
   first obs. used      2001-02-20  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57831  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 05:50:56  

Additional Information
 Earth MOID = .656173 au 
 Jupiter MOID = 2.5719 au 
 T_jup = 3.589 
[ 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 16.8   n/a MPO450048  

226131 (2002 RA44)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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