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134402 Ieshimatoshiaki (1997 RG)
Classification: Main-belt Asteroid          SPK-ID: 2134402
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899561822042724 3.5398e-08  
a 2.650894381771475 1.2412e-08 au
q 2.14734060558341 9.214e-08 au
i 3.249893050697939 4.17e-06 deg
node 15.92162753721783 7.7428e-05 deg
peri 2.883427756684166 7.8275e-05 deg
M 120.8208176529498 1.2419e-05 deg
tp 2458671.413922386913
(2019-Jul-06.91392239)
5.3052e-05 TDB
period 1576.474912525647
4.32
1.1072e-05
3.031e-08
d
yr
n .2283575825658078 1.6038e-09 deg/d
Q 3.154448157959539 1.477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      9482 days (25.96 yr)  
   first obs. used      1995-03-28  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57141  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:13  

Additional Information
 Earth MOID = 1.14812 au 
 Jupiter MOID = 2.31011 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 15.7   n/a MPO532637  
diameter diameter 2.154 km 0.450 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.263   0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134402 Ieshimatoshiaki           Discovered 1997 Sept. 1 by H. Abe at Yatsuka.
Toshiaki Ieshima (b.1955) is a member of Matsue Astronomy Club. He popularizes astronomy in Shimane prefecture and is an observing partner of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

Alternate Designations
 1997 RG = 2001 NA14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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