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295637 (2008 SE254)
Classification: Main-belt Asteroid          SPK-ID: 2295637
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09969001669777547 3.8418e-08  
a 2.306705689721342 1.591e-08 au
q 2.076750160996168 8.8583e-08 au
i 3.111030523424552 5.2476e-06 deg
node 141.2716657662734 0.00011212 deg
peri 330.9544746168186 0.00011776 deg
M 35.75161986560221 3.5834e-05 deg
tp 2458873.419202860238
(2020-Jan-24.91920286)
0.00012708 TDB
period 1279.636758901962
3.50
1.3239e-05
3.625e-08
d
yr
n .2813298363739651 2.9107e-09 deg/d
Q 2.536661218446516 1.7496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      6679 days (18.29 yr)  
   first obs. used      2001-10-20  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57868  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:41:31  

Additional Information
 Earth MOID = 1.09391 au 
 Jupiter MOID = 2.53536 au 
 T_jup = 3.579 
[ 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 17.1   n/a MPO455185  
diameter diameter 2.106 km 0.363 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295637 (2008 SE254)          Discovered 2008-Sep-22 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 SE254 = 2006 AW15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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