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172883 (2005 EP256)
Classification: Main-belt Asteroid          SPK-ID: 2172883
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1695460271667701 5.7911e-08  
a 2.359516892012556 1.6885e-08 au
q 1.959470176938942 1.3532e-07 au
i 10.21276188769928 6.3321e-06 deg
node 225.2426182103643 2.5043e-05 deg
peri 327.811227335579 2.8109e-05 deg
M 57.96752330058468 1.2856e-05 deg
tp 2458787.335290017875
(2019-Oct-30.83529002)
4.6557e-05 TDB
period 1323.832574244048
3.62
1.421e-05
3.89e-08
d
yr
n .271937711009696 2.9191e-09 deg/d
Q 2.75956360708617 1.9748e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      8542 days (23.39 yr)  
   first obs. used      1995-07-28  
   last obs. used      2018-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:09:03  

Additional Information
 Earth MOID = .965172 au 
 Jupiter MOID = 2.23085 au 
 T_jup = 3.512 
[ 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 MPO427054  
diameter diameter 3.550 km 0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172883 (2005 EP256)          Discovered 2005-Mar-11 by LONEOS at Anderson Mesa
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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