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146470 (2001 RM78)
Classification: Main-belt Asteroid          SPK-ID: 2146470
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1954573643169799 8.4109e-08  
a 2.809985925916662 1.9295e-08 au
q 2.260753483069183 2.4103e-07 au
i 9.747247439118416 7.6943e-06 deg
node 12.65398096729056 2.2656e-05 deg
peri 334.1030335734748 2.5622e-05 deg
M 11.75809207311142 1.1777e-05 deg
tp 2458944.306122574308
(2020-Apr-04.80612257)
5.6128e-05 TDB
period 1720.49986915062
4.71
1.7721e-05
4.852e-08
d
yr
n .2092415154775487 2.1551e-09 deg/d
Q 3.359218368764141 2.3066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      6092 days (16.68 yr)  
   first obs. used      2001-08-16  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55843  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 05:46:56  

Additional Information
 Earth MOID = 1.25917 au 
 Jupiter MOID = 2.08638 au 
 T_jup = 3.272 
[ 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 MPO436735  
diameter diameter 2.468 km 0.505 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146470 (2001 RM78)          Discovered 2001-Sep-10 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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