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9845 Okamuraosamu (1990 FM1)
Classification: Main-belt Asteroid          SPK-ID: 2009845
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621225513134925 4.0441e-08  
a 2.796221733207271 1.2197e-08 au
q 2.342891131781472 1.1094e-07 au
i 8.203122916264045 4.1554e-06 deg
node 121.354257484779 2.964e-05 deg
peri 43.04461524272462 3.1888e-05 deg
M 191.2520335452096 1.3394e-05 deg
tp 2459801.056308845787
(2022-Aug-09.55630885)
6.5675e-05 TDB
period 1707.874039843294
4.68
1.1175e-05
3.06e-08
d
yr
n .2107883787688651 1.3792e-09 deg/d
Q 3.249552334633069 1.4175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1749  
   data-arc span      15912 days (43.56 yr)  
   first obs. used      1976-04-03  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48911  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:29:15  

Additional Information
 Earth MOID = 1.35906 au 
 Jupiter MOID = 1.75947 au 
 T_jup = 3.293 
[ 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 13.0   n/a MPO492864  
diameter diameter 10.663 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9845 Okamuraosamu           Discovered 1990 Mar. 27 by K. Endate and K. Watanabe at Kitami.
Osamu Okamura (b. 1954) is a Japanese certified public accountant and an amateur astronomer. His main activities are video photography of solar eclipses and meteors. He is also well known for his first-rate astronomical library.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1990 FM1 = 1976 GM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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