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295540 (2008 RR142)
Classification: Main-belt Asteroid          SPK-ID: 2295540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .100209633392808 5.0638e-08  
a 2.73883354392281 2.9538e-08 au
q 2.464376038562381 1.3712e-07 au
i 10.27027733481398 6.3163e-06 deg
node 290.8931217659629 3.3234e-05 deg
peri 159.9132802799838 5.5115e-05 deg
M 131.3678462280052 3.8842e-05 deg
tp 2458396.365742400782
(2018-Oct-04.86574240)
0.00018074 TDB
period 1655.567469365681
4.53
2.6782e-05
7.333e-08
d
yr
n .2174480996162188 3.5177e-09 deg/d
Q 3.01329104928324 3.2498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      7083 days (19.39 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60075  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:40:45  

Additional Information
 Earth MOID = 1.48368 au 
 Jupiter MOID = 2.15239 au 
 T_jup = 3.320 
[ 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 16.0   n/a MPO427596  
diameter diameter 4.232 km 0.802 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295540 (2008 RR142)          Discovered 2008-Sep-07 by LINEAR at Socorro
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 RR142 = 2001 DR99 = 2009 WV43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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