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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961717245151333 6.2158e-08  
a 3.149601292156175 4.0708e-08 au
q 2.531738575138806 1.9851e-07 au
i 25.43786626123422 1.1131e-05 deg
node 226.0942940007411 1.7093e-05 deg
peri 242.2208765517212 3.4865e-05 deg
M 281.414010130763 3.3556e-05 deg
tp 2457846.181312016324
(2017-Apr-02.68131202)
0.00019441 JED
period 2041.652368225548
5.59
3.9582e-05
1.084e-07
d
yr
n .1763277654916763 3.4185e-09 deg/d
Q 3.767464009173544 4.8694e-08 au
  Orbit Determination Parameters
   # obs. used (total)      600  
   data-arc span      8041 days (22.02 yr)  
   first obs. used      1993-12-02  
   last obs. used      2015-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54774  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:38:19  

Additional Information
 Earth MOID = 1.63934 au 
 Jupiter MOID = 1.90604 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 13.5 mag n/a MPO351109  
rotation period rot_per 6.6229 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.]

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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