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11154 Kobushi (1997 YD10)
Classification: Main-belt Asteroid          SPK-ID: 2011154
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1093132753617662 8.1094e-09  
a 2.317202466293426 6.8645e-09 au
q 2.063901475026528 2.1964e-08 au
i 5.146453101173905 2.7671e-07 deg
node 329.4831891780458 6.0483e-06 deg
peri 319.1906018580049 1.034e-05 deg
M 8.191427610768894 1.0789e-05 deg
tp 2459171.184217098151
3.8601e-05 TDB
period 1288.381262234585
n .2794203940653494 1.2416e-09 deg/d
Q 2.570503457560323 7.6149e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2548  
   data-arc span      13383 days (36.64 yr)  
   first obs. used      1984-01-25  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45393  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:33:34  

Additional Information
 Earth MOID = 1.049 au 
 Jupiter MOID = 2.57956 au 
 T_jup = 3.567 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.63   n/a E2021B10  
diameter diameter 5.214 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.163   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

11154 Kobushi           Discovered 1997 Dec. 28 by T. Kobayashi at Oizumi.
Kobushi mountain (height 2475 meters) is located in the Oku-Chichibu area. The name means that the mountain stretches over three states, Koshu, Bushu and Shinshu. Kobushi, one of the 100 most celebrated mountains in Japan, has three riverheads, which flow into the Fuefuki, Chikuma and Arakawa rivers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060413/MPCPages.arcLast Updated: 2006-04-17

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1930-Feb-27 19:13 00:04 Amphi 0.036260865153798 0.0362567137618687 0.0362650188698038 2.73918529382997 2.73918523595198 2426035.300369771 3.57875822321081 508.984937297043 37.9529098636404 66.3968315170304 130896.458703889 T 36 CATAB v2.0f-lin.ifort 2021-Apr-12 22:35:02 2021-Apr-12 22:35

Alternate Designations
 1997 YD10 = 1984 BX5 = 1995 EC1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2021-Jun-23 19:01 UT
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