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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01681754097801631 5.5518e-08  
a 3.163239476204886 2.1159e-08 au
q 3.110041566690531 1.7733e-07 au
i 16.54271639219528 5.9639e-06 deg
node 36.98370320461711 1.5538e-05 deg
peri 141.6064788813634 0.00014248 deg
M 261.4936221610493 0.00014215 deg
tp 2459162.787441614446
(2020-Nov-09.28744161)
0.00081204 TDB
period 2054.927644503842
5.63
2.0618e-05
5.645e-08
d
yr
n .1751886500543532 1.7577e-09 deg/d
Q 3.21643738571924 2.1515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1799  
   data-arc span      15932 days (43.62 yr)  
   first obs. used      1976-04-01  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48307  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:39:33  

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

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