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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01469581854221808 5.6817e-08  
a 3.216198876943741 3.2586e-08 AU
q 3.16893420185249 1.8197e-07 AU
i 9.720297679747366 6.3487e-06 deg
node 78.25120312760357 3.7165e-05 deg
peri 76.83294934388817 0.00026306 deg
M 67.92892821564656 0.0002575 deg
tp 2456402.974463511855
(2013-Apr-20.47446351)
0.0015088 JED
period 2106.748875551505
5.77
3.2018e-05
8.766e-08
d
yr
n .17087940768724 2.597e-09 deg/d
Q 3.263463552034992 3.3065e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1105  
   data-arc span      27455 days (75.17 yr)  
   first obs. used      1939-04-20  
   last obs. used      2014-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50884  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:05:45  

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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