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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2899654894583263 2.2507e-08  
a 2.865995932712983 1.2722e-08 au
q 2.03495601929829 6.7297e-08 au
i 4.86329950433678 6.2817e-07 deg
node 322.1094740017792 1.0403e-05 deg
peri 335.9540757155823 1.1228e-05 deg
M 316.7206968989252 2.5913e-06 deg
tp 2459413.553925127275
(2021-Jul-18.05392513)
1.3874e-05 TDB
period 1772.196120318633
4.85
1.18e-05
3.231e-08
d
yr
n .2031377881220469 1.3525e-09 deg/d
Q 3.697035846127675 1.641e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2205  
   data-arc span      25985 days (71.14 yr)  
   first obs. used      1949-12-22  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46003  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:17:05  

Additional Information
 Earth MOID = 1.01844 au 
 Jupiter MOID = 1.55458 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 12.41   n/a E2021B10  
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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