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8574 Makotoirie (1996 VC2)
Classification: Main-belt Asteroid          SPK-ID: 2008574
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1820916033891032 3.252e-08  
a 2.144548768134131 5.428e-09 au
q 1.754044444398461 6.8801e-08 au
i 1.237846177198498 4.2329e-06 deg
node 253.5984212328865 0.00016399 deg
peri 88.86665362550093 0.00016453 deg
M 233.0595306659201 1.5935e-05 deg
tp 2459404.982667089345
(2021-Jul-09.48266709)
5.1679e-05 TDB
period 1147.10273970187
3.14
4.3551e-06
1.192e-08
d
yr
n .313834138425616 1.1915e-09 deg/d
Q 2.535053091869801 6.4164e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      30474 days (83.43 yr)  
   first obs. used      1936-08-28  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56161  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:57:50  

Additional Information
 Earth MOID = .746497 au 
 Jupiter MOID = 2.85855 au 
 T_jup = 3.689 
[ 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 14.9   n/a MPO458915  
diameter diameter 2.546 km 0.616 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.359   0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8574 Makotoirie           Discovered 1996 Nov. 6 by T. Kobayashi at Oizumi.
Makoto Irie (b. 1939) is known for his outstanding coronal observations with the coronagraph at the Norikura Solar Observatory. He also made countless sunspot drawings at the National Astronomical Observatory of Japan during his service there from 1963 to 2001.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

Alternate Designations
 1996 VC2 = 1936 QR1 = 1955 UM = 1977 SK1 = 1980 QC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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