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14853 Shimokawa (1989 SX)
Classification: Main-belt Asteroid          SPK-ID: 2014853
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3060898680830385 5.465e-08  
a 2.554547508246631 1.1165e-08 au
q 1.772626398435565 1.3534e-07 au
i 6.703622171755825 3.8045e-06 deg
node 27.60673506603353 3.5294e-05 deg
peri 355.1178072091279 3.6232e-05 deg
M 275.1979164159233 1.5407e-05 deg
tp 2459747.796178088656
(2022-Jun-17.29617809)
6.5545e-05 TDB
period 1491.315056976534
4.08
9.7767e-06
2.677e-08
d
yr
n .2413976834176526 1.5825e-09 deg/d
Q 3.336468618057697 1.4582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1497  
   data-arc span      11580 days (31.70 yr)  
   first obs. used      1989-09-30  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:21:10  

Additional Information
 Earth MOID = .775479 au 
 Jupiter MOID = 2.12443 au 
 T_jup = 3.362 
[ 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 14.02   n/a E2021B10  
diameter diameter 7.667 km 1.807 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.083   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

14853 Shimokawa           Discovered 1989 Sept. 30 by K. Endate and K. Watanabe at Kitami.
Yoji Shimokawa (b. 1956) is a Japanese amateur astronomer. His major astronomical interest is the photography of nebula and star clusters, and he is active in organizing local star parties for amateur astronomers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-06-02Last Updated: 2015-06-04

Alternate Designations
 1989 SX = 1993 SF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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