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295641 (2008 SE261)
Classification: Main-belt Asteroid          SPK-ID: 2295641
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03020982574836511 4.1241e-08  
a 2.282875349536954 1.5994e-08 au
q 2.213910083022205 9.0993e-08 au
i 6.2001384942934 6.2772e-06 deg
node 185.4670750507094 4.129e-05 deg
peri 272.9728011786531 0.0001232 deg
M 69.99317441194408 0.00011374 deg
tp 2458755.551426495436
(2019-Sep-29.05142650)
0.00039822 TDB
period 1259.858367655278
3.45
1.324e-05
3.625e-08
d
yr
n .2857464055027042 3.003e-09 deg/d
Q 2.351840616051704 1.6477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      9333 days (25.55 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57612  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:43:34  

Additional Information
 Earth MOID = 1.24104 au 
 Jupiter MOID = 2.67139 au 
 T_jup = 3.596 
[ 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 17.5   n/a MPO455185  

295641 (2008 SE261)          Discovered 2008-Sep-23 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 SE261 = 1994 SJ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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