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187747 (1993 FS21)
Classification: Main-belt Asteroid          SPK-ID: 2187747
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2041009219025127 4.3206e-08  
a 2.392286317032846 9.857e-09 au
q 1.904018474271675 1.0364e-07 au
i 5.583214966308287 5.2498e-06 deg
node 191.4959513215938 4.2883e-05 deg
peri 26.6041327959448 4.437e-05 deg
M 158.0508836223289 1.1104e-05 deg
tp 2458607.147756584175
(2019-May-03.64775658)
4.062e-05 TDB
period 1351.506570125366
3.70
8.353e-06
2.287e-08
d
yr
n .2663694043060452 1.6463e-09 deg/d
Q 2.880554159794017 1.1869e-08 au
  Orbit Determination Parameters
   # obs. used (total)      422  
   data-arc span      10070 days (27.57 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53979  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:47:45  

Additional Information
 Earth MOID = .897856 au 
 Jupiter MOID = 2.09007 au 
 T_jup = 3.496 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO475582  

187747 (1993 FS21)          Discovered 1993-Mar-21 by UESAC at La Silla
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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