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295646 (2008 SG280)
Classification: Main-belt Asteroid          SPK-ID: 2295646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100852402572339 6.1188e-08  
a 2.413040651956558 1.8011e-08 au
q 2.147400492035448 1.4619e-07 au
i 5.921626634163392 6.8007e-06 deg
node 197.1594155756579 4.2082e-05 deg
peri 26.45888656646512 4.9387e-05 deg
M 206.3545665727414 2.4038e-05 deg
tp 2459584.835861864560
(2022-Jan-05.33586186)
9.2782e-05 TDB
period 1369.132199889522
3.75
1.5329e-05
4.197e-08
d
yr
n .2629402770813871 2.9439e-09 deg/d
Q 2.678680811877668 1.9994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      6020 days (16.48 yr)  
   first obs. used      2003-05-05  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59408  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:02:07  

Additional Information
 Earth MOID = 1.14083 au 
 Jupiter MOID = 2.29508 au 
 T_jup = 3.503 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO450205  
rotation period rot_per 5.342 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

295646 (2008 SG280)          Discovered 2008-Sep-29 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 SG280 = 2004 TQ83 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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