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277300 (2005 SK139)
Classification: Main-belt Asteroid          SPK-ID: 2277300
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201664408022347 6.0147e-08  
a 2.439866724973538 1.795e-08 au
q 2.146676624601663 1.3856e-07 au
i 2.411241169669847 6.0956e-06 deg
node 48.13192866085727 0.00011416 deg
peri 21.0748288327914 0.00011617 deg
M 258.4341755403915 2.4171e-05 deg
tp 2459393.228736672381
(2021-Jun-27.72873667)
9.5694e-05 TDB
period 1392.02675658172
3.81
1.5362e-05
4.206e-08
d
yr
n .2586157186259989 2.854e-09 deg/d
Q 2.733056825345412 2.0107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      4995 days (13.68 yr)  
   first obs. used      2005-09-25  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62529  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:46:46  

Additional Information
 Earth MOID = 1.16104 au 
 Jupiter MOID = 2.51624 au 
 T_jup = 3.491 
[ 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 17.4   n/a MPO476188  
diameter diameter 1.471 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

277300 (2005 SK139)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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