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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205923973728309 7.3075e-08  
a 2.653345478926247 2.3054e-08 AU
q 2.333372186564169 1.9892e-07 AU
i 12.97991704032282 7.8589e-06 deg
node 170.848580930465 2.5359e-05 deg
peri 32.0401926082876 3.583e-05 deg
M 37.78300026362243 2.3642e-05 deg
tp 2456834.815047007093
(2014-Jun-26.31504701)
0.00010384 JED
period 1578.661902476663
4.32
2.0575e-05
5.633e-08
d
yr
n .2280412287363233 2.9721e-09 deg/d
Q 2.973318771288325 2.5835e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      735  
   data-arc span      6265 days (17.15 yr)  
   first obs. used      1997-05-03  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54214  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:43:52  

Additional Information
 Earth MOID = 1.34344 AU 
 T_jup = 3.343 
[ 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 (327)
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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