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212257 (2005 JS109)
Classification: Main-belt Asteroid          SPK-ID: 2212257
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873033238522655 4.167e-08  
a 2.751137263353299 2.7822e-08 au
q 2.235840109553401 1.1303e-07 au
i 31.15541157632524 8.665e-06 deg
node 54.47496524454432 1.0259e-05 deg
peri 260.8149325817344 2.7637e-05 deg
M 327.0762593055085 2.5663e-05 deg
tp 2458752.931066292072
(2019-Sep-26.43106629)
0.00011974 TDB
period 1666.735999847275
4.56
2.5283e-05
6.922e-08
d
yr
n .2159910147935769 3.2764e-09 deg/d
Q 3.266434417153197 3.3033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      7526 days (20.61 yr)  
   first obs. used      1997-11-02  
   last obs. used      2018-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54545  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:30:21  

Additional Information
 Earth MOID = 1.40743 au 
 Jupiter MOID = 2.242 au 
 T_jup = 3.114 
[ 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 15.0   n/a MPO440125  
diameter diameter 6.253 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212257 (2005 JS109)          Discovered 2005-May-12 by NEAT at Palomar
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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