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295554 (2008 SS42)
Classification: Main-belt Asteroid          SPK-ID: 2295554
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1084755727006691 5.9038e-08  
a 2.756732091431191 2.6185e-08 au
q 2.45769399903088 1.665e-07 au
i .9587473006316088 6.9555e-06 deg
node 316.9721249916462 0.00036728 deg
peri 167.4382702740863 0.00036923 deg
M 19.11374700529945 3.4178e-05 deg
tp 2458511.736666799742
(2019-Jan-28.23666680)
0.00015881 TDB
period 1671.82290020022
4.58
2.382e-05
6.522e-08
d
yr
n .2153338131430583 3.0681e-09 deg/d
Q 3.055770183831503 2.9026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      7100 days (19.44 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48932  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:42:06  

Additional Information
 Earth MOID = 1.47357 au 
 Jupiter MOID = 1.99869 au 
 T_jup = 3.334 
[ 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 16.6   n/a MPO423131  
diameter diameter 3.105 km 0.331 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295554 (2008 SS42)          Discovered 2008-Sep-20 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2008 SS42 = 2003 SJ431 = 2008 UO346 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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