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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01473921837509225 5.6983e-08  
a 3.216868289338163 3.2606e-08 AU
q 3.169454165137699 1.827e-07 AU
i 9.719634723008982 6.3475e-06 deg
node 78.25219133409017 3.7147e-05 deg
peri 77.62434627174879 0.00026156 deg
M 101.3038189673564 0.00025583 deg
tp 2456407.476828233371
(2013-Apr-24.97682823)
0.0015005 JED
period 2107.406650728338
5.77
3.2041e-05
8.772e-08
d
yr
n .1708260718810871 2.5972e-09 deg/d
Q 3.264282413538628 3.3087e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1125  
   data-arc span      27493 days (75.27 yr)  
   first obs. used      1939-04-20  
   last obs. used      2014-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50458  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:00:40  

Additional Information
 Earth MOID = 2.19659 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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