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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3539011371220559 2.0167e-07  
a 2.174541853152165 4.5342e-08 AU
q 1.404969018602111 4.203e-07 AU
i 8.149853636193027 1.6729e-05 deg
node 81.21971552640399 9.0548e-05 deg
peri 264.3897657166188 0.00011027 deg
M 279.6633124623529 9.1799e-05 deg
tp 2457261.873469799854
(2015-Aug-27.37346980)
0.00030652 JED
period 1171.25129267812
3.21
3.6633e-05
1.003e-07
d
yr
n .3073635881987745 9.6133e-09 deg/d
Q 2.944114687702219 6.1388e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      86  
   data-arc span      5313 days (14.55 yr)  
   first obs. used      1999-09-13  
   last obs. used      2014-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61442  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 23:53:41  

Additional Information
 Earth MOID = .431835 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 17.2 mag n/a MPO291621  

229958 (1999 RD43)          Discovered 1999-Sep-13 by McNaught, R. H. at Siding Spring (413)
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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