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215289 (2001 RF85)
Classification: Main-belt Asteroid          SPK-ID: 2215289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1798528204217311 4.7912e-08  
a 2.727571534947939 1.4573e-08 au
q 2.237010101485521 1.3128e-07 au
i 2.257046111351965 5.1275e-06 deg
node 206.9727291631891 0.00013574 deg
peri 178.1083981372614 0.0001368 deg
M 79.49310131149667 1.5559e-05 deg
tp 2458837.179761149659
(2019-Dec-19.67976115)
7.0856e-05 TDB
period 1645.366501347038
4.50
1.3186e-05
3.61e-08
d
yr
n .2187962376195657 1.7534e-09 deg/d
Q 3.218132968410356 1.7193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      8034 days (22.00 yr)  
   first obs. used      1999-03-21  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56475  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:40:52  

Additional Information
 Earth MOID = 1.2397 au 
 Jupiter MOID = 2.23602 au 
 T_jup = 3.331 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.70   n/a MPCxxxxx  
diameter diameter 2.313 km 0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215289 (2001 RF85)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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