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46580 Ryouichiirie (1992 GC)
Classification: Main-belt Asteroid          SPK-ID: 2046580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1340188680289548 3.446e-08  
a 2.658560221220487 1.295e-08 au
q 2.30226298978571 8.9135e-08 au
i 13.64512020023693 5.5798e-06 deg
node 27.02001407360269 1.5419e-05 deg
peri 230.6868554140804 2.7055e-05 deg
M 37.66184295634277 2.1716e-05 deg
tp 2458434.859227336491
(2018-Nov-12.35922734)
9.5587e-05 TDB
period 1583.318113985726
4.33
1.1568e-05
3.167e-08
d
yr
n .2273706065888194 1.6613e-09 deg/d
Q 3.014857452655265 1.4685e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1383  
   data-arc span      16217 days (44.40 yr)  
   first obs. used      1975-06-08  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48888  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:27:44  

Additional Information
 Earth MOID = 1.31404 au 
 Jupiter MOID = 2.07595 au 
 T_jup = 3.334 
[ 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 13.9   n/a MPO436107  
diameter diameter 4.282 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46580 Ryouichiirie           Discovered 1992 Apr. 2 by T. Seki at Geisei.
Ryouichi Irie (b. 1949) is a Japanese amateur astronomer in Toyooka city, Hyogo prefecture, and an independent discoverer of C/1988 P1 (Machholz). He is also an award-winning astro-photographer and exhibits his works widely. The name was suggested by M. Sugano.
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 2013-07-22Last Updated: 2014-08-13

Alternate Designations
 1992 GC = 1975 LZ = 1989 SL6 = 1998 VT21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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