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249612 (1999 RD207)
Classification: Main-belt Asteroid          SPK-ID: 2249612
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2416837227501268 6.5575e-08  
a 3.099411603174417 3.2489e-08 au
q 2.350334268584285 2.1226e-07 au
i 14.97156819396781 8.2913e-06 deg
node 328.9946079363347 2.1063e-05 deg
peri 38.39681716093639 2.6546e-05 deg
M 291.4844305989758 1.5945e-05 deg
tp 2459379.818547819664
(2021-Jun-14.31854782)
9.2096e-05 TDB
period 1993.04593698725
5.46
3.1338e-05
8.58e-08
d
yr
n .1806280494187641 2.8401e-09 deg/d
Q 3.848488937764549 4.0341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      308  
   data-arc span      7208 days (19.73 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57437  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:53  

Additional Information
 Earth MOID = 1.36638 au 
 Jupiter MOID = 1.72117 au 
 T_jup = 3.126 
[ 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 15.6   n/a MPO437159  
diameter diameter 3.082 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249612 (1999 RD207)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1999 RD207 = 2004 OM10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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