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212275 (2005 JY157)
Classification: Main-belt Asteroid          SPK-ID: 2212275
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1867562225053976 4.5617e-08  
a 2.673322714109087 1.8145e-08 au
q 2.174063062484197 1.2004e-07 au
i 12.32181867261054 5.7751e-06 deg
node 166.2011985747345 2.4541e-05 deg
peri 95.45694452261483 2.9098e-05 deg
M 145.2589988128517 1.8397e-05 deg
tp 2458356.306920053619
(2018-Aug-25.80692005)
7.9143e-05 TDB
period 1596.52421313659
4.37
1.6254e-05
4.45e-08
d
yr
n .2254898466542707 2.2957e-09 deg/d
Q 3.172582365733977 2.1533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      6652 days (18.21 yr)  
   first obs. used      2001-08-16  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59098  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 16:52:37  

Additional Information
 Earth MOID = 1.20094 au 
 Jupiter MOID = 2.04707 au 
 T_jup = 3.322 
[ 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 16.3   n/a MPO450007  
diameter diameter 2.938 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212275 (2005 JY157)          Discovered 2005-May-04 by Spacewatch at Kitt Peak
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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