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295638 (2008 SN254)
Classification: Main-belt Asteroid          SPK-ID: 2295638
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1749025828119821 1.3432e-07  
a 2.127351327830739 2.4081e-08 au
q 1.755272086044643 3.0213e-07 au
i 2.022604108129715 7.8392e-06 deg
node 342.02291327 0.00011157 deg
peri 353.0172304003208 0.00011319 deg
M 305.7121106484239 2.2304e-05 deg
tp 2459171.406158001707
(2020-Nov-17.90615800)
7.2524e-05 TDB
period 1133.332270152595
3.10
1.9243e-05
5.268e-08
d
yr
n .3176473568087216 5.3934e-09 deg/d
Q 2.499430569616834 2.8292e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      4851 days (13.28 yr)  
   first obs. used      2005-10-28  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56693  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:24:14  

Additional Information
 Earth MOID = .745426 au 
 Jupiter MOID = 2.85757 au 
 T_jup = 3.704 
[ 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 18.0   n/a MPO427596  

295638 (2008 SN254)          Discovered 2008-Sep-22 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 SN254 = 2005 XT53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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