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249020 (2007 RC171)
Classification: Main-belt Asteroid          SPK-ID: 2249020
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1027792902313976 5.9874e-08  
a 3.115230820266091 3.6226e-08 au
q 2.795049607652167 1.8991e-07 au
i 9.414679120575652 8.6733e-06 deg
node 152.064357084158 3.7753e-05 deg
peri 80.7006317311633 5.6691e-05 deg
M 220.6919151605488 4.5107e-05 deg
tp 2459777.654908074208
(2022-Jul-17.15490807)		 0.00025751 TDB
period 2008.32397652404
5.50		 3.5031e-05
9.591e-08		 d
yr
n .179253947175933 3.1267e-09 deg/d
Q 3.435412032880014 3.9949e-08 au
   Orbit Determination Parameters
   # obs. used (total)      159  
   data-arc span      7126 days (19.51 yr)  
   first obs. used      2000-05-05  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6035  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:20:54  

Additional Information
 Earth MOID = 1.80494 au 
 Jupiter MOID = 1.63094 au 
 T_jup = 3.189 
[ 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 15.9   n/a MPO460089  
diameter diameter 4.177 km 0.417 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249020 (2007 RC171)          Discovered 2007-Sep-10 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2007 RC171 = 2002 UG54 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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