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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2164709388664784 4.2963e-08  
a 2.717141940018738 1.3052e-08 au
q 2.128959673229397 1.1336e-07 au
i 14.33551970146335 4.9422e-06 deg
node 64.51952145854287 1.6449e-05 deg
peri 296.1807770676328 2.0788e-05 deg
M 78.81433121209326 1.102e-05 deg
tp 2458642.346161748340
(2019-Jun-07.84616175)
4.9642e-05 TDB
period 1635.938284163398
4.48
1.1787e-05
3.227e-08
d
yr
n .2200572011089651 1.5855e-09 deg/d
Q 3.305324206808079 1.5877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      7264 days (19.89 yr)  
   first obs. used      2000-05-28  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:09:20  

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

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