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JPL Small-Body Database Browser
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249260 (2008 SQ68)
Classification: Main-belt Asteroid          SPK-ID: 2249260
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1031873801847494 7.2975e-08  
a 2.660004325091371 2.9674e-08 au
q 2.38552544750509 1.8539e-07 au
i 4.611632320830612 5.9725e-06 deg
node 308.7931942115695 8.3594e-05 deg
peri 19.76789775515677 9.0579e-05 deg
M 193.1973645900582 3.9177e-05 deg
tp 2459334.713470709099
(2021-Apr-30.21347071)
0.00017927 TDB
period 1584.608353493208
4.34
2.6516e-05
7.26e-08
d
yr
n .227185474067705 3.8016e-09 deg/d
Q 2.934483202677652 3.2736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      8069 days (22.09 yr)  
   first obs. used      1997-01-31  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:09:57  

Additional Information
 Earth MOID = 1.37371 au 
 Jupiter MOID = 2.3577 au 
 T_jup = 3.374 
[ 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 16.1   n/a MPO245566  
diameter diameter 3.568 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249260 (2008 SQ68)          Discovered 2008-Sep-21 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 SQ68 = 2004 WM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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