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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .162122551135126 4.0333e-08  
a 2.796221733125964 1.2146e-08 au
q 2.342891132212099 1.107e-07 au
i 8.203122750859228 4.133e-06 deg
node 121.3542575142218 2.9597e-05 deg
peri 43.04461538107371 3.1829e-05 deg
M 191.2520334229301 1.3383e-05 deg
tp 2459801.056309390976
(2022-Aug-09.55630939)
6.5641e-05 TDB
period 1707.874039768803
4.68
1.1128e-05
3.047e-08
d
yr
n .2107883787780589 1.3735e-09 deg/d
Q 3.249552334039829 1.4116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1796  
   data-arc span      16193 days (44.33 yr)  
   first obs. used      1976-04-03  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:12:57  

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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