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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01469579677630332 7.1988e-08  
a 3.216198913071729 3.4176e-08 AU
q 3.16893430745306 2.3796e-07 AU
i 9.720298062935443 6.8391e-06 deg
node 78.25115872917083 4.1761e-05 deg
peri 76.83270123929492 0.00027255 deg
M 67.92921434600864 0.00026607 deg
tp 2456402.972782355812
(2013-Apr-20.47278236)
0.0015591 JED
period 2106.748911049589
5.77
3.358e-05
9.194e-08
d
yr
n .1708794048079735 2.7237e-09 deg/d
Q 3.263463518690399 3.4678e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1054  
   data-arc span      27350 days (74.88 yr)  
   first obs. used      1939-04-20  
   last obs. used      2014-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54889  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:42:04  

Additional Information
 Earth MOID = 2.19551 AU 
 T_jup = 3.168 
[ 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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