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266733 (2009 RO68)
Classification: Main-belt Asteroid          SPK-ID: 2266733
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1424052390478779 5.1353e-08  
a 3.133159041985977 3.1274e-08 au
q 2.686980779636944 1.7215e-07 au
i 1.626463775927345 5.9452e-06 deg
node 44.00094849675414 0.00019333 deg
peri 43.59569994888616 0.00019477 deg
M 279.4362585756826 2.332e-05 deg
tp 2459453.824523705836
(2021-Aug-27.32452371)
0.00013374 TDB
period 2025.685819065518
5.55
3.0329e-05
8.304e-08
d
yr
n .177717589081052 2.6608e-09 deg/d
Q 3.57933730433501 3.5727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      8041 days (22.02 yr)  
   first obs. used      1998-10-19  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60036  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:45  

Additional Information
 Earth MOID = 1.70366 au 
 Jupiter MOID = 1.629 au 
 T_jup = 3.196 
[ 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 16.3   n/a MPO440311  
diameter diameter 3.447 km 0.444 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266733 (2009 RO68)          Discovered 2009-Sep-15 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 RO68 = 2009 VW55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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