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3278 Behounek (1984 BT)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003278
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01459150721129522 5.5918e-08  
a 3.217976098940725 3.212e-08 au
q 3.171020977487256 1.7818e-07 au
i 9.717681010968343 6.2721e-06 deg
node 78.23678365444533 3.6261e-05 deg
peri 79.3236513224293 0.00025656 deg
M 202.0504419990971 0.00025084 deg
tp 2458525.599747049411
(2019-Feb-11.09974705)
0.0014652 JED
period 2108.495352268629
5.77
3.1569e-05
8.643e-08
d
yr
n .1707378674620549 2.5563e-09 deg/d
Q 3.264931220394194 3.2589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1195  
   data-arc span      27959 days (76.55 yr)  
   first obs. used      1939-04-20  
   last obs. used      2015-11-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51232  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 15:42:00  

Additional Information
 Earth MOID = 2.19512 au 
 Jupiter MOID = 1.76948 au 
 T_jup = 3.167 
[ 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 11.3 mag n/a MPO263375  
diameter diameter 32.43 km 2.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
geometric albedo albedo 0.0610   0.009 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4

3278 Behounek (1984 BT)          Discovered 1984-Jan-27 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1984 BT = 1939 HE = 1953 VV1 = 1965 WN = 1982 XA2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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