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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05449455817827311 3.9053e-08  
a 2.153590509472347 6.1372e-09 au
q 2.03623154616173 8.3739e-08 au
i 3.073325710568715 3.8113e-06 deg
node 359.001467880036 8.1072e-05 deg
peri 233.6613000444185 8.9611e-05 deg
M 122.9746087265534 3.6896e-05 deg
tp 2458606.173405102221
(2019-May-02.67340510)		 0.00011859 TDB
period 1154.364918361787
3.16		 4.9345e-06
1.351e-08		 d
yr
n .3118597891132147 1.3331e-09 deg/d
Q 2.270949472782965 6.4716e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1963  
   data-arc span      25151 days (68.86 yr)  
   first obs. used      1950-10-10  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48111  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:32:57  

Additional Information
 Earth MOID = 1.02702 au 
 Jupiter MOID = 2.70779 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 13.9   n/a MPO492794  
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. 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 0.194   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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