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78509 (2002 RM85)
Classification: Main-belt Asteroid          SPK-ID: 2078509
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102402912584901 5.1879e-08  
a 2.62264981589055 1.667e-08 au
q 2.333528136317751 1.4105e-07 au
i 9.548652255048703 5.7491e-06 deg
node 359.3067926673988 2.2639e-05 deg
peri 196.5621223960514 3.1521e-05 deg
M 225.3800116859318 2.6061e-05 deg
tp 2459580.617456092135
(2022-Jan-01.11745609)
0.00011549 TDB
period 1551.346771074886
4.25
1.4791e-05
4.05e-08
d
yr
n .2320564342623189 2.2125e-09 deg/d
Q 2.91177149546335 1.8508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      8035 days (22.00 yr)  
   first obs. used      1998-10-29  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:35  

Additional Information
 Earth MOID = 1.33465 au 
 Jupiter MOID = 2.05508 au 
 T_jup = 3.376 
[ 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 15.0   n/a MPO502630  
diameter diameter 3.141 km 0.511 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78509 (2002 RM85)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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