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109862 (2001 RR142)
Classification: Main-belt Asteroid          SPK-ID: 2109862
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2164709376029887 4.2978e-08  
a 2.717141940201287 1.3053e-08 au
q 2.12895967680551 1.1341e-07 au
i 14.33551973673476 4.9449e-06 deg
node 64.51952139927317 1.6465e-05 deg
peri 296.18077731361 2.0802e-05 deg
M 78.81433100482357 1.1021e-05 deg
tp 2458642.346162654137
(2019-Jun-07.84616265)		 4.9644e-05 TDB
period 1635.938284328261
4.48		 1.1789e-05
3.228e-08		 d
yr
n .2200572010867885 1.5858e-09 deg/d
Q 3.305324203597063 1.5879e-08 au
   Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      7185 days (19.67 yr)  
   first obs. used      2000-05-28  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:34:23  

Additional Information
 Earth MOID = 1.17144 au 
 Jupiter MOID = 2.29586 au 
 T_jup = 3.282 
[ 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 MPO453560  
diameter diameter 2.659 km 0.335 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.250   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

109862 (2001 RR142)          Discovered 2001-Sep-11 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RR142 = 2001 QX147 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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