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11254 Konkohekisui (1977 DL2)
Classification: Main-belt Asteroid          SPK-ID: 2011254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813986582529858 2.9186e-08  
a 2.457973176956943 6.9223e-09 au
q 2.012100140635125 7.132e-08 au
i 5.59825654443077 2.5353e-06 deg
node 140.7762656228571 4.1243e-05 deg
peri 314.0502048979939 4.2331e-05 deg
M 123.981802720341 1.0096e-05 deg
tp 2458515.748031012918
(2019-Feb-01.24803101)
3.9012e-05 TDB
period 1407.550987373396
3.85
5.946e-06
1.628e-08
d
yr
n .2557633813832841 1.0804e-09 deg/d
Q 2.903846213278761 8.1779e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2096  
   data-arc span      15858 days (43.42 yr)  
   first obs. used      1977-02-18  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:00:45  

Additional Information
 Earth MOID = 1.03351 au 
 Jupiter MOID = 2.27973 au 
 T_jup = 3.462 
[ 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 14.2   n/a MPO467792  
rotation period rot_per 8.79414 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

11254 Konkohekisui           Discovered 1977 Feb. 18 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.
Konko Hekisui (1909-1989) was a Japanese poet and sometime director of the library in Konko, Okayama prefecture.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1977 DL2 = 1997 LR17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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