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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 ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1338258298799659 7.0218e-08  
a 2.68562211539734 2.8952e-08 AU
q 2.326216507060301 1.9259e-07 AU
i 13.70680438367944 8.034e-06 deg
node 119.8795479046865 2.8998e-05 deg
peri 162.1022736900796 4.1746e-05 deg
M 262.6600562719858 3.4196e-05 deg
tp 2457235.164702092900
(2015-Jul-31.66470209)
0.00015666 JED
period 1607.554789539185
4.40
2.5995e-05
7.117e-08
d
yr
n .2239426004902738 3.6213e-09 deg/d
Q 3.045027723734378 3.2827e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      716  
   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      .59366  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:46:28  

Additional Information
 Earth MOID = 1.31277 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 (327)
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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