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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1869258640129845 4.1053e-08  
a 2.750019576316982 2.6123e-08 au
q 2.235969790961309 1.123e-07 au
i 31.15302738110944 8.4153e-06 deg
node 54.46893781091683 1.012e-05 deg
peri 260.8735654647473 2.6567e-05 deg
M 53.46777160100092 2.4349e-05 deg
tp 2458753.104561146130
(2019-Sep-26.60456115)
0.00011149 TDB
period 1665.720401665778
4.56
2.3735e-05
6.498e-08
d
yr
n .2161227056113304 3.0795e-09 deg/d
Q 3.264069361672655 3.1006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      603  
   data-arc span      7984 days (21.86 yr)  
   first obs. used      1997-11-02  
   last obs. used      2019-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5313  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 00:55:37  

Additional Information
 Earth MOID = 1.408 au 
 Jupiter MOID = 2.24396 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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