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249284 (2008 SF300)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249284
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2255534011867664 6.4171e-08  
a 3.945044010028286 6.3032e-08 au
q 3.055225915734926 2.634e-07 au
i 1.720216927721786 6.6098e-06 deg
node 262.3546078064233 0.00028304 deg
peri 144.8256022931434 0.00028361 deg
M 165.4372820744741 1.7346e-05 deg
tp 2457685.253692029837
(2016-Oct-23.75369203)
0.00012722 TDB
period 2862.043337100465
7.84
6.8592e-05
1.878e-07
d
yr
n .1257842588661554 3.0146e-09 deg/d
Q 4.834862104321645 7.7249e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      7092 days (19.42 yr)  
   first obs. used      2000-11-26  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:42:45  

Additional Information
 Earth MOID = 2.06537 au 
 Jupiter MOID = .588181 au 
 T_jup = 3.015 
[ 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 15.2   n/a MPO433633  
diameter diameter 6.505 km 1.542 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.035   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

249284 (2008 SF300)          Discovered 2008-Sep-22 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 SF300 = 2010 AD7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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