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243630 (1999 RX202)
Classification: Main-belt Asteroid          SPK-ID: 2243630
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1686510138707534 9.6768e-08  
a 3.083785645418707 3.9971e-08 au
q 2.563702069758766 3.091e-07 au
i 13.84639328371106 8.2522e-06 deg
node 278.2488310915367 3.1931e-05 deg
peri 45.15407194790168 3.7273e-05 deg
M 319.8754297252356 2.012e-05 deg
tp 2459220.961416823441
(2021-Jan-06.46141682)
0.00011295 TDB
period 1977.992773828023
5.42
3.8457e-05
1.053e-07
d
yr
n .1820026871500089 3.5386e-09 deg/d
Q 3.603869221078647 4.6712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      7207 days (19.73 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54734  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:23:18  

Additional Information
 Earth MOID = 1.57108 au 
 Jupiter MOID = 1.7508 au 
 T_jup = 3.161 
[ 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 15.2   n/a MPO348657  
diameter diameter 2.516 km 0.555 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.335   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243630 (1999 RX202)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Alternate Designations
 1999 RX202 = 2004 LQ25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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