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21354 (1997 FM)
Classification: Main-belt Asteroid          SPK-ID: 2021354
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 .1339323550324588 7.0157e-08  
a 2.685464256151151 2.8683e-08 AU
q 2.325793703969337 1.9258e-07 AU
i 13.70674926170186 8.0271e-06 deg
node 119.8787931176032 2.8922e-05 deg
peri 162.1392542850807 4.1687e-05 deg
M 307.4269435356883 3.4592e-05 deg
tp 2457235.240603612589
(2015-Jul-31.74060361)
0.0001566 JED
period 1607.413054972331
4.40
2.5752e-05
7.051e-08
d
yr
n .2239623467573472 3.5881e-09 deg/d
Q 3.045134808332965 3.2524e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      6294 days (17.23 yr)  
   first obs. used      1997-03-21  
   last obs. used      2014-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58959  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:04:18  

Additional Information
 Earth MOID = 1.31425 AU 
 T_jup = 3.321 
[ 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 13.9 mag n/a MPO259495  

21354 (1997 FM)          Discovered 1997-Mar-21 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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