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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01473921757229915 5.6842e-08  
a 3.216868289694827 3.2564e-08 AU
q 3.169454168071585 1.8212e-07 AU
i 9.719634741841761 6.3464e-06 deg
node 78.25219389229832 3.7071e-05 deg
peri 77.62434087298952 0.00026141 deg
M 101.3038217263396 0.00025572 deg
tp 2456407.476811983914
(2013-Apr-24.97681198)
0.0014998 JED
period 2107.406651078819
5.77
3.2e-05
8.761e-08
d
yr
n .1708260718526771 2.5939e-09 deg/d
Q 3.264282411318069 3.3044e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1133  
   data-arc span      27536 days (75.39 yr)  
   first obs. used      1939-04-20  
   last obs. used      2014-09-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50415  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:57:13  

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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