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21365 (1997 JS7)
Classification: Main-belt Asteroid          SPK-ID: 2021365
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .120807495280805 5.9626e-08  
a 2.653924954231936 1.9575e-08 au
q 2.333310927847951 1.5659e-07 au
i 12.98075290743399 6.6871e-06 deg
node 170.8432044581217 2.2569e-05 deg
peri 32.18820581974143 3.3546e-05 deg
M 174.4016995430139 2.3495e-05 deg
tp 2456835.468009457458
(2014-Jun-26.96800946)
0.00010334 JED
period 1579.17908665442
4.32
1.7472e-05
4.784e-08
d
yr
n .2279665447968161 2.5222e-09 deg/d
Q 2.974538980615921 2.194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      6734 days (18.44 yr)  
   first obs. used      1997-05-03  
   last obs. used      2015-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52065  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 16:47:01  

Additional Information
 Earth MOID = 1.34163 au 
 Jupiter MOID = 2.00245 au 
 T_jup = 3.342 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO309321  

21365 (1997 JS7)          Discovered 1997-May-03 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 JS7 = 1999 VV179 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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