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2734 Hasek (1976 GJ3)
Classification: Main-belt Asteroid          SPK-ID: 2002734
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01650736923951754 5.3254e-08  
a 3.16251117697326 2.0109e-08 au
q 3.110306437250861 1.7205e-07 au
i 16.54179655593227 5.2089e-06 deg
node 36.96974296713366 1.5466e-05 deg
peri 141.9778030497238 0.00013662 deg
M 331.1962984902678 0.00013567 deg
tp 2459164.858561446108
(2020-Nov-11.35856145)
0.00077417 TDB
period 2054.218000440221
5.62
1.9593e-05
5.364e-08
d
yr
n .1752491702063032 1.6715e-09 deg/d
Q 3.214715916695659 2.0441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1889  
   data-arc span      15986 days (43.77 yr)  
   first obs. used      1976-04-01  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4724  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:42:39  

Additional Information
 Earth MOID = 2.11339 au 
 Jupiter MOID = 1.75696 au 
 T_jup = 3.140 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.8   n/a MPO502179  
diameter diameter 25.409 km 0.183 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.208 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.066   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2734 Hasek (1976 GJ3)          Discovered 1976-Apr-01 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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