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39636 (1995 BQ2)
Classification: Main-belt Asteroid          SPK-ID: 2039636
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962813703249469 6.7525e-08  
a 3.149984209580605 4.3155e-08 AU
q 2.531700992422179 2.1101e-07 AU
i 25.43515683495176 1.2655e-05 deg
node 226.1123209054284 1.7256e-05 deg
peri 242.1499199109807 3.6758e-05 deg
M 210.9695871001582 3.3762e-05 deg
tp 2457845.843847004234
(2017-Apr-02.34384700)
0.00019772 JED
period 2042.024704890604
5.59
4.1964e-05
1.149e-07
d
yr
n .1762956144153438 3.6229e-09 deg/d
Q 3.768267426739031 5.1626e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      7937 days (21.73 yr)  
   first obs. used      1993-12-02  
   last obs. used      2015-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53884  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:35:17  

Additional Information
 Earth MOID = 1.63932 AU 
 T_jup = 3.030 
[ 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 13.3 mag n/a MPO263677  
rotation period rot_per 6.6229 h n/a LCDB (Rev. 2015-July); 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., in press.]

39636 (1995 BQ2)          Discovered 1995-Jan-29 by McNaught, R. H. at Siding Spring
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 BQ2 = 1999 UM9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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