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312042 (2007 RQ212)
Classification: Main-belt Asteroid          SPK-ID: 2312042
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1726156182621851 4.3583e-08  
a 2.20672677500913 1.2658e-08 au
q 1.825811268405211 9.7407e-08 au
i 2.105113944271726 3.1396e-06 deg
node 69.15022885460718 0.00013367 deg
peri 256.10903616 0.00013488 deg
M 339.4917913545713 1.4287e-05 deg
tp 2459068.709756637997
(2020-Aug-07.20975664)
4.719e-05 TDB
period 1197.350427539768
3.28
1.0302e-05
2.821e-08
d
yr
n .3006638589002743 2.587e-09 deg/d
Q 2.587642281613049 1.4843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      6377 days (17.46 yr)  
   first obs. used      2003-05-05  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50874  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:48:51  

Additional Information
 Earth MOID = .815251 au 
 Jupiter MOID = 2.72892 au 
 T_jup = 3.640 
[ 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 17.3   n/a MPO434002  

312042 (2007 RQ212)          Discovered 2007-Sep-11 by LUSS at Lulin
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2007 RQ212 = 2004 WL4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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