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7240 Hasebe (1989 YG)
Classification: Main-belt Asteroid          SPK-ID: 2007240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598669162100256 3.883e-08  
a 2.35424917118243 7.6891e-09 au
q 1.977882616195487 8.9595e-08 au
i 5.495804444284306 4.2464e-06 deg
node 11.47804834943808 3.4474e-05 deg
peri 36.16815182407718 3.6835e-05 deg
M 186.6093379669137 1.2197e-05 deg
tp 2459635.977634427463
(2022-Feb-25.47763443)
4.5619e-05 TDB
period 1319.401781569025
3.61
6.4639e-06
1.77e-08
d
yr
n .2728509276165219 1.3367e-09 deg/d
Q 2.730615726169374 8.9184e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1948  
   data-arc span      12551 days (34.36 yr)  
   first obs. used      1985-09-22  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50074  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:24:29  

Additional Information
 Earth MOID = .990328 au 
 Jupiter MOID = 2.66295 au 
 T_jup = 3.532 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO473866  
diameter diameter 3.264 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.501   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7240 Hasebe           Discovered 1989 Dec. 19 by Y. Mizuno and T. Furuta at Kani.
Takao Hasebe (b. 1947) is a Japanese amateur astronomer who taught astronomy to the first discoverer during his youth. Hasebe is also an observer of the lunar surface.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

Alternate Designations
 1989 YG = 1985 SM6 = 1992 PU5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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