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214247 (2005 EA257)
Classification: Main-belt Asteroid          SPK-ID: 2214247
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 .2362884091510238 4.7014e-08  
a 2.400844897182858 1.7373e-08 au
q 1.833553075809167 1.1266e-07 au
i 1.446234824970376 4.7445e-06 deg
node 274.5828087745031 0.00021667 deg
peri 67.42076437425921 0.00021724 deg
M 246.742298669747 2.2387e-05 deg
tp 2459427.974118233508
(2021-Aug-01.47411823)
8.8605e-05 TDB
period 1358.765724154392
3.72
1.4749e-05
4.038e-08
d
yr
n .2649463359285433 2.8759e-09 deg/d
Q 2.968136718556548 2.1479e-08 au
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      10486 days (28.71 yr)  
   first obs. used      1991-08-05  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:05:00  

Additional Information
 Earth MOID = .826009 au 
 Jupiter MOID = 2.44304 au 
 T_jup = 3.487 
[ 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 16.8   n/a MPO433401  
diameter diameter 1.309 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.731 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.196   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

214247 (2005 EA257)          Discovered 2005-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 2005 EA257 = 1991 PC26 = 2006 PH16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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