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11108 Hachimantai (1995 UJ6)
Classification: Main-belt Asteroid          SPK-ID: 2011108
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1187868763580684 4.1785e-08  
a 3.015085233635059 2.1731e-08 au
q 2.656932676778214 1.2619e-07 au
i 9.471499869948616 5.0533e-06 deg
node 239.1235245370227 2.6749e-05 deg
peri 108.6328019945419 3.419e-05 deg
M 220.1856949053271 2.3606e-05 deg
tp 2459343.171785637576
(2021-May-08.67178564)
0.00012961 TDB
period 1912.263860614889
5.24
2.0673e-05
5.66e-08
d
yr
n .1882585386957226 2.0352e-09 deg/d
Q 3.373237790491905 2.4312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1363  
   data-arc span      10874 days (29.77 yr)  
   first obs. used      1989-08-02  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51009  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:53:15  

Additional Information
 Earth MOID = 1.66946 au 
 Jupiter MOID = 2.10714 au 
 T_jup = 3.217 
[ 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 13.3   n/a MPO344391  
diameter diameter 7.712 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.352 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 0.171   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11108 Hachimantai           Discovered 1995 Oct. 27 by T. Kobayashi at Oizumi.
Hachimantai is a beautiful highland. Some 1600 m high, it forms a part of the Ohu-Mountains located in northern Honshu. It is named as one of the 100 most celebrated mountains of Japan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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