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277064 (2005 ET85)
Classification: Main-belt Asteroid          SPK-ID: 2277064
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2213491020370094 1.2495e-07  
a 3.124845313162654 4.7822e-08 au
q 2.433163609089543 3.9294e-07 au
i 6.417225826276622 1.3075e-05 deg
node 23.98007096423878 9.0107e-05 deg
peri 107.2536309668678 9.7218e-05 deg
M 294.1545891945838 3.0862e-05 deg
tp 2459369.532166737925
(2021-Jun-04.03216674)
0.00017605 TDB
period 2017.628539341201
5.52
4.6316e-05
1.268e-07
d
yr
n .1784272937165866 4.0959e-09 deg/d
Q 3.816527017235765 5.8407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      5850 days (16.02 yr)  
   first obs. used      2003-10-21  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5825  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:20:58  

Additional Information
 Earth MOID = 1.45708 au 
 Jupiter MOID = 1.29205 au 
 T_jup = 3.167 
[ 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 16.2   n/a MPO455056  
diameter diameter 2.789 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

277064 (2005 ET85)          Discovered 2005-Mar-04 by LINEAR at Socorro
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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