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3676 Hahn (1984 GA)
Classification: Main-belt Asteroid          SPK-ID: 2003676
[ 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05437270925811091 1.9283e-08  
a 2.15377918940564 4.7905e-09 au
q 2.036672379733917 4.0935e-08 au
i 3.073243818594511 8.4947e-07 deg
node 359.0002285773074 1.2198e-05 deg
peri 233.6237064997835 1.6437e-05 deg
M 185.3914611687589 1.5557e-05 deg
tp 2459760.467947397261
(2022-Jun-29.96794740)		 5.0154e-05 TDB
period 1154.516625660839
3.16		 3.8519e-06
1.055e-08		 d
yr
n .3118188097065626 1.0403e-09 deg/d
Q 2.270885999077363 5.051e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2558  
   data-arc span      25722 days (70.42 yr)  
   first obs. used      1950-10-10  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45353  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:24:49  

Additional Information
 Earth MOID = 1.02611 au 
 Jupiter MOID = 2.70665 au 
 T_jup = 3.699 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.88   n/a E2021B10  
diameter diameter 5.010 km 0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.685 h n/a LCDB (Rev. 2020-October); 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 0.194   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3676 Hahn (1984 GA)          Discovered 1984-Apr-03 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 GA = 1950 TN4 = 1981 JQ2 = 1982 UW9 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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