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6975 Hiroaki (1992 QM)
Classification: Main-belt Asteroid          SPK-ID: 2006975
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2899034248549626 3.6115e-08  
a 2.866370529990345 1.5932e-08 au
q 2.03539989644281 1.0387e-07 au
i 4.86323341166845 4.2914e-06 deg
node 322.1086176473873 4.592e-05 deg
peri 335.9238997693654 4.7091e-05 deg
M 276.1196385040476 1.5784e-05 deg
tp 2459413.504434396116
(2021-Jul-18.00443440)
7.9823e-05 TDB
period 1772.543581488691
4.85
1.4779e-05
4.046e-08
d
yr
n .203097968230293 1.6934e-09 deg/d
Q 3.69734116353788 2.0551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1913  
   data-arc span      25610 days (70.12 yr)  
   first obs. used      1949-12-22  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47939  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:17:04  

Additional Information
 Earth MOID = 1.02086 au 
 Jupiter MOID = 1.5545 au 
 T_jup = 3.231 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.3   n/a MPO337313  
diameter diameter 18.256 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6975 Hiroaki           Discovered 1992 Aug. 25 by S. Otomo at Kiyosato.
Hiroaki Hayashi (b. 1954) is a factory manager in the city of Yashio. Each year he teaches hundreds of children how to make telescopes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1992 QM = 1983 VY3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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