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243628 (1999 RG131)
Classification: Main-belt Asteroid          SPK-ID: 2243628
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2609766888769576 6.084e-08  
a 3.088688946304403 3.2047e-08 au
q 2.282613132127021 2.0058e-07 au
i 18.13506126945616 5.117e-06 deg
node 181.512450279148 1.9737e-05 deg
peri 189.7097970964169 2.3109e-05 deg
M 277.9235196789054 1.786e-05 deg
tp 2459452.539005965465
(2021-Aug-26.03900597)
0.00010392 TDB
period 1982.712239985552
5.43
3.0857e-05
8.448e-08
d
yr
n .1815694646655449 2.8258e-09 deg/d
Q 3.894764760481785 4.041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      7651 days (20.95 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:55:19  

Additional Information
 Earth MOID = 1.28372 au 
 Jupiter MOID = 1.57036 au 
 T_jup = 3.098 
[ 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 MPO437137  
diameter diameter 5.141 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243628 (1999 RG131)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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