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JPL Small-Body Database Browser
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10148 Shirase (1994 GR9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2010148
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1414951012171386 3.6673e-08  
a 3.21069340721467 1.82e-08 au
q 2.756396018583631 1.1708e-07 au
i .4546975007233898 4.3172e-06 deg
node 9.083766274111321 0.00043532 deg
peri 221.0209710503473 0.00043554 deg
M 109.0507986529798 1.4652e-05 deg
tp 2457963.963911508336
(2017-Jul-29.46391151)
8.4257e-05 TDB
period 2101.341711271709
5.75
1.7868e-05
4.892e-08
d
yr
n .1713191139113362 1.4567e-09 deg/d
Q 3.66499079584571 2.0776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2224  
   data-arc span      13789 days (37.75 yr)  
   first obs. used      1982-02-25  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48225  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:18:34  

Additional Information
 Earth MOID = 1.74609 au 
 Jupiter MOID = 1.3287 au 
 T_jup = 3.176 
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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 12.6   n/a MPO332915  
diameter diameter 15.513 km 0.335 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10148 Shirase           Discovered 1994 Apr. 14 by S. Otomo at Kiyosato.
The adventurer Nobu Shirase (1861-1946) was the first Japanese to explore Antarctica, reaching latitude -80\rm o05' on 1912 Jan. 28.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

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Alternate Designations
 1994 GR9 = 1982 DP5 = 1988 FO2 = 1988 FQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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