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154263 (2002 RM39)
Classification: Outer Main-belt Asteroid          SPK-ID: 2154263
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2597838761705081 5.1436e-08  
a 3.979604260582627 3.7947e-08 au
q 2.945767240143803 2.0608e-07 au
i 1.438773639296616 5.8853e-06 deg
node 59.38583935276067 0.00021703 deg
peri 290.4466346839514 0.00021732 deg
M 75.46907934640497 1.0552e-05 deg
tp 2458392.610266352876
(2018-Oct-01.11026635)
8.1113e-05 TDB
period 2899.734646403756
7.94
4.1475e-05
1.136e-07
d
yr
n .1241492908485509 1.7757e-09 deg/d
Q 5.013441281021451 4.7805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      7595 days (20.79 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54952  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 20:02:55  

Additional Information
 Earth MOID = 1.94023 au 
 Jupiter MOID = .423858 au 
 T_jup = 2.996 
[ 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 14.8   n/a MPO454001  
diameter diameter 5.032 km 0.360 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.076   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

154263 (2002 RM39)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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