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229958 (1999 RD43)
Classification: Mars-crossing Asteroid          SPK-ID: 2229958
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3538523025579592 1.1713e-07  
a 2.174568389883706 8.9005e-09 au
q 1.405092358053603 2.5595e-07 au
i 8.149614966691432 8.6352e-06 deg
node 81.21562952010936 6.4935e-05 deg
peri 264.3734778095338 6.8784e-05 deg
M 42.61698039142959 1.2684e-05 deg
tp 2457261.844147010008
(2015-Aug-27.34414701)
4.1401e-05 JED
period 1171.272732556984
3.21
7.191e-06
1.969e-08
d
yr
n .3073579619787533 1.887e-09 deg/d
Q 2.944044421713809 1.205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      5954 days (16.30 yr)  
   first obs. used      1999-09-13  
   last obs. used      2016-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5597  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 21:13:08  

Additional Information
 Earth MOID = .4298 au 
 Jupiter MOID = 2.51536 au 
 T_jup = 3.590 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4 mag n/a MPO360192  

229958 (1999 RD43)          Discovered 1999-Sep-13 by McNaught, R. H. at Siding Spring
Reference: 20100130/Numbers.arcLast Updated: 2010-02-01

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