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24940 Sankichiyama (1997 JY4)
Classification: Main-belt Asteroid          SPK-ID: 2024940
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1436363344458863 2.8911e-08  
a 2.527372218787657 1.0053e-08 au
q 2.164349737500631 7.2347e-08 au
i 11.95494045003849 4.7515e-06 deg
node 51.47341585956196 1.5638e-05 deg
peri 264.7545715790728 2.4131e-05 deg
M 98.42543964739407 1.8974e-05 deg
tp 2458199.257340321371
(2018-Mar-21.75734032)
7.6882e-05 TDB
period 1467.581531784712
4.02
8.7565e-06
2.397e-08
d
yr
n .2453015333071188 1.4636e-09 deg/d
Q 2.890394700074682 1.1497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1786  
   data-arc span      8246 days (22.58 yr)  
   first obs. used      1997-05-01  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50206  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 00:39:20  

Additional Information
 Earth MOID = 1.18977 au 
 Jupiter MOID = 2.43462 au 
 T_jup = 3.408 
[ 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 14.0   n/a MPO324539  

24940 Sankichiyama           Discovered 1997 May 1 by T. Okuni at Nanyo.
Sankichiyama mountain is located to the east of Kaminoyama, a hot-spring town in Yamagata prefecture. The mountain is loved by citizens as a hiking course.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110715/MPCPages.arcLast Updated: 2011-07-20

Alternate Designations
 1997 JY4 = 1998 VO10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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