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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3060456555050281 5.798e-08  
a 2.554218245835446 1.1846e-08 au
q 1.772510848485834 1.4316e-07 au
i 6.70384227824074 3.8495e-06 deg
node 27.6087479138694 3.5547e-05 deg
peri 355.1458113387478 3.6478e-05 deg
M 227.8318678162325 1.5718e-05 deg
tp 2459747.906163489689
(2022-Jun-17.40616349)
6.8013e-05 TDB
period 1491.026736931456
4.08
1.0373e-05
2.84e-08
d
yr
n .2414443625208778 1.6797e-09 deg/d
Q 3.335925643185058 1.5471e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1457  
   data-arc span      11212 days (30.70 yr)  
   first obs. used      1989-09-30  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51108  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:46:14  

Additional Information
 Earth MOID = .774825 au 
 Jupiter MOID = 2.12399 au 
 T_jup = 3.362 
[ show covariance matrix ]

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 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

[ show close-approach data ]
Alternate Designations
 1989 SX = 1993 SF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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