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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01681753502658332 5.7637e-08  
a 3.16323947381928 2.2043e-08 au
q 3.110041583170853 1.8244e-07 au
i 16.54271638534741 6.4375e-06 deg
node 36.98370320530287 1.5645e-05 deg
peri 141.606462914174 0.00014843 deg
M 261.4936387369512 0.00014854 deg
tp 2459162.787346360917
(2020-Nov-09.28734636)
0.00084897 TDB
period 2054.927642179209
5.63
2.148e-05
5.881e-08
d
yr
n .1751886502525351 1.8312e-09 deg/d
Q 3.216437364467707 2.2414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1740  
   data-arc span      15914 days (43.57 yr)  
   first obs. used      1976-04-01  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48625  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:19:19  

Additional Information
 Earth MOID = 2.11369 au 
 Jupiter MOID = 1.75643 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 11.7   n/a MPO337271  
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-January); 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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