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90953 Hideosaitou (1997 VA9)
Classification: Main-belt Asteroid          SPK-ID: 2090953
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871529373063174 3.1626e-08  
a 2.358306339745473 7.4834e-09 au
q 1.916942381193998 7.5045e-08 au
i 4.092190502563267 4.3048e-06 deg
node 203.2102896275086 5.2715e-05 deg
peri 263.8508910030806 5.4128e-05 deg
M 40.16249316608445 1.1722e-05 deg
tp 2458852.923597753973
(2020-Jan-04.42359775)
4.2881e-05 TDB
period 1322.813914685797
3.62
6.2963e-06
1.724e-08
d
yr
n .2721471221335841 1.2954e-09 deg/d
Q 2.799670298296948 8.8839e-09 au
  Orbit Determination Parameters
   # obs. used (total)      954  
   data-arc span      9723 days (26.62 yr)  
   first obs. used      1993-09-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53772  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:36:35  

Additional Information
 Earth MOID = .938819 au 
 Jupiter MOID = 2.34814 au 
 T_jup = 3.526 
[ 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 15.6   n/a MPO453348  
diameter diameter 4.479 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90953 Hideosaitou           Discovered 1997 Nov. 7 by T. Okuni at Nanyo.
Hideo Saitou (b. 1946) is the leader of activities of the Fukushima branch of the Japanese Young Astronauts Club, formed by the Japan Aerospace Exploration Agency.
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 2015-01-05Last Updated: 2015-01-07

Alternate Designations
 1997 VA9 = 1993 RS8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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