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266754 (2009 SA77)
Classification: Outer Main-belt Asteroid          SPK-ID: 2266754
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 .09463432452358361 5.1036e-08  
a 3.251464330951406 3.7192e-08 au
q 2.943764200279294 1.7786e-07 au
i 5.93516736157443 5.294e-06 deg
node 89.07131641165986 7.0484e-05 deg
peri 347.9470355247041 8.3039e-05 deg
M 251.176787030119 4.366e-05 deg
tp 2459647.845243684929
(2022-Mar-09.34524368)
0.00026306 TDB
period 2141.494276511337
5.86
3.6744e-05
1.006e-07
d
yr
n .1681069167210049 2.8844e-09 deg/d
Q 3.559164461623519 4.0712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6204 days (16.99 yr)  
   first obs. used      2003-10-22  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:40  

Additional Information
 Earth MOID = 1.95952 au 
 Jupiter MOID = 1.66728 au 
 T_jup = 3.166 
[ 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 16.0   n/a MPO440311  
diameter diameter 3.236 km 0.376 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

266754 (2009 SA77)          Discovered 2009-Sep-17 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SA77 = 2003 UC387 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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