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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01473921812793293 5.6755e-08  
a 3.216868289551309 3.2485e-08 AU
q 3.169454166142782 1.817e-07 AU
i 9.719634953969372 6.3423e-06 deg
node 78.252191087201 3.6991e-05 deg
peri 77.6243428065864 0.00026047 deg
M 101.303822619644 0.00025482 deg
tp 2456407.476806794278
(2013-Apr-24.97680679)
0.0014945 JED
period 2107.406650937789
5.77
3.1922e-05
8.74e-08
d
yr
n .170826071864109 2.5876e-09 deg/d
Q 3.264282412959837 3.2963e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1153  
   data-arc span      27759 days (76.00 yr)  
   first obs. used      1939-04-20  
   last obs. used      2015-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50109  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:43:04  

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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