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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205063424013306 8.0015e-08  
a 2.653035568502475 2.5004e-08 AU
q 2.333327955881607 2.1684e-07 AU
i 12.98023693717767 8.7108e-06 deg
node 170.8509809065764 2.8413e-05 deg
peri 31.99823636092664 4.0229e-05 deg
M 352.2049203538053 2.7198e-05 deg
tp 2456834.676775983686
(2014-Jun-26.17677598)
0.00011925 JED
period 1578.385329280545
4.32
2.2314e-05
6.109e-08
d
yr
n .2280811873511864 3.2244e-09 deg/d
Q 2.972743181123343 2.8018e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      6184 days (16.93 yr)  
   first obs. used      1997-05-03  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54173  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:16:41  

Additional Information
 Earth MOID = 1.34251 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 14.0 mag n/a MPO257019  

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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