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243538 (2010 FG21)
Classification: Outer Main-belt Asteroid          SPK-ID: 2243538
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08500907919617399 5.6558e-08  
a 3.201636268677272 4.9518e-08 au
q 2.929468117555943 1.9309e-07 au
i 6.981742459438257 9.1258e-06 deg
node 35.36467224021 5.6109e-05 deg
peri 260.3759853785402 8.077e-05 deg
M 176.1031909400228 5.5522e-05 deg
tp 2457976.921540095067
(2017-Aug-11.42154010)
0.00032787 TDB
period 2092.456380823194
5.73
4.8545e-05
1.329e-07
d
yr
n .1720465971474026 3.9914e-09 deg/d
Q 3.473804419798601 5.3728e-08 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      8424 days (23.06 yr)  
   first obs. used      1995-09-25  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58035  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:10:40  

Additional Information
 Earth MOID = 1.92456 au 
 Jupiter MOID = 1.71062 au 
 T_jup = 3.177 
[ 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 15.9   n/a MPO460068  
diameter diameter 5.494 km 0.372 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.023   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243538 (2010 FG21)          Discovered 2010-Mar-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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