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8559 (1995 QM2)
Classification: Main-belt Asteroid          SPK-ID: 2008559
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09871490081731848 5.4491e-08  
a 2.771024031246088 2.1264e-08 au
q 2.497482668839224 1.465e-07 au
i 4.569627297036074 5.4512e-06 deg
node 109.1555168932179 7.1262e-05 deg
peri 215.7204183775782 7.8048e-05 deg
M 162.6034763153807 3.2071e-05 deg
tp 2456639.497312488670
(2013-Dec-12.99731249)
0.00015047 JED
period 1684.840777774716
4.61
1.9393e-05
5.31e-08
d
yr
n .213670042148123 2.4594e-09 deg/d
Q 3.044565393652951 2.3363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1361  
   data-arc span      9780 days (26.78 yr)  
   first obs. used      1989-03-07  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52564  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:07:42  

Additional Information
 Earth MOID = 1.48492 au 
 Jupiter MOID = 2.2186 au 
 T_jup = 3.326 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO332900  
rotation period rot_per 4.0717 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

8559 (1995 QM2)          Discovered 1995-Aug-25 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 QM2 = 1989 GB8 = 1993 BK6 = 1993 DF3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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