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26169 Ishikawakiyoshi (1995 YY)
Classification: Main-belt Asteroid          SPK-ID: 2026169
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0652339454725431 3.7014e-08  
a 2.271210868643635 7.8902e-09 au
q 2.123050822681888 8.4141e-08 au
i 5.708265527133571 4.1848e-06 deg
node 108.989118699135 4.2282e-05 deg
peri 172.8087617122794 5.4635e-05 deg
M 214.4782879740311 3.5414e-05 deg
tp 2459505.870524434383
(2021-Oct-18.37052443)
0.0001233 TDB
period 1250.214736093202
3.42
6.5149e-06
1.784e-08
d
yr
n .2879505333019546 1.5005e-09 deg/d
Q 2.419370914605381 8.405e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1534  
   data-arc span      8913 days (24.40 yr)  
   first obs. used      1995-12-17  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:30:29  

Additional Information
 Earth MOID = 1.10671 au 
 Jupiter MOID = 2.65365 au 
 T_jup = 3.603 
[ 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 14.7   n/a MPO358874  
diameter diameter 2.695 km 0.541 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.423   0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26169 Ishikawakiyoshi           Discovered 1995 Dec. 21 by T. Kobayashi at Oizumi.
Akiyoshi Ishikawa (b. 1955), a Japanese amateur astronomer, is a key member of the group Ota Uchuno Kai. A devoted comet observer, he has had more than 1100 visual magnitude estimates published in the International Comet Quarterly since 1980. The name was suggested by A. Nakamura.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020921/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1995 YY = 1998 VD10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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