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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415416791111548 5.8433e-08  
a 3.136133868480692 4.1177e-08 au
q 2.692240214818573 1.8399e-07 au
i 1.626593664092026 6.3463e-06 deg
node 44.0448970808246 0.00023844 deg
peri 43.28629995587939 0.00023967 deg
M 208.6273437005365 2.4867e-05 deg
tp 2459453.472927022236
(2021-Aug-26.97292702)
0.00014805 TDB
period 2028.571482028577
5.55
3.9953e-05
1.094e-07
d
yr
n .1774647840558219 3.4952e-09 deg/d
Q 3.580027522142811 4.7006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      7588 days (20.77 yr)  
   first obs. used      1998-10-19  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:50  

Additional Information
 Earth MOID = 1.70888 au 
 Jupiter MOID = 1.6299 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457152.5 (2015-May-10.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1370601546683608 5.732e-08  
q 2.708277955264113 1.7929e-07 au
tp 2457414.522789158051
(2016-Jan-27.02278916)
0.00013995 TDB
node 44.11647281289578 0.00023693 deg
peri 42.07789191360868 0.00023835 deg
i 1.635949040876696 6.3422e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      7588 days (20.77 yr)  
   first obs. used      1998-10-19  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65252  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:50  

Additional Information
 Jupiter MOID = 1.6299 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.285613523673905E-15 -1.007496833023893E-14 5.925646101359836E-13 2.407649414961643E-14 1.228279686815718E-13 -3.021025650761036E-16
q -1.007496833023893E-14 3.214605918699997E-14 -3.728851455159518E-13 -9.391345387228287E-14 -1.339449614897982E-13 1.87665348775846E-15
tp 5.925646101359836E-13 -3.728851455159518E-13 1.958721148635865E-8 -3.513644962945551E-11 3.70274594950495E-9 2.407534366966609E-12
node 2.407649414961643E-14 -9.391345387228287E-14 -3.513644962945551E-11 5.613740009175542E-8 -5.611922253321265E-8 3.948737505172697E-11
peri 1.228279686815718E-13 -1.339449614897982E-13 3.70274594950495E-9 -5.611922253321265E-8 5.68119568759328E-8 -3.904323555404163E-11
i -3.021025650761036E-16 1.87665348775846E-15 2.407534366966609E-12 3.948737505172697E-11 -3.904323555404163E-11 4.022287803814243E-11

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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