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212231 (2005 JM27)
Classification: Main-belt Asteroid          SPK-ID: 2212231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904409517017769 5.7883e-08  
a 2.600885235497635 2.1711e-08 au
q 2.105570175982365 1.5827e-07 au
i 4.167691104821903 5.1376e-06 deg
node 90.56587378392186 8.1348e-05 deg
peri 82.15699122300155 8.2478e-05 deg
M 156.8797400538274 1.7752e-05 deg
tp 2457932.856583144698
(2017-Jun-28.35658314)
6.9898e-05 TDB
period 1532.075652250833
4.19
1.9183e-05
5.252e-08
d
yr
n .2349753417666482 2.9422e-09 deg/d
Q 3.096200295012904 2.5845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      7233 days (19.80 yr)  
   first obs. used      2000-01-09  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54361  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:45:07  

Additional Information
 Earth MOID = 1.11635 au 
 Jupiter MOID = 1.88087 au 
 T_jup = 3.385 
[ 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 16.1   n/a MPO454523  
diameter diameter 4.252 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212231 (2005 JM27)          Discovered 2005-May-03 by LINEAR at Socorro
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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