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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1615017672089639 4.051e-08  
a 2.798318818574838 1.2407e-08 au
q 2.346385384160901 1.1138e-07 au
i 8.200311739876939 4.1553e-06 deg
node 121.35250098425 2.9678e-05 deg
peri 43.25775133973868 3.1939e-05 deg
M 106.7421787358487 1.3246e-05 deg
tp 2458093.535231884161
(2017-Dec-06.03523188)
6.1923e-05 TDB
period 1709.795684172297
4.68
1.1372e-05
3.113e-08
d
yr
n .2105514730985381 1.4003e-09 deg/d
Q 3.250252252988775 1.4411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1741  
   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      .48651  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:19:51  

Additional Information
 Earth MOID = 1.36303 au 
 Jupiter MOID = 1.76016 au 
 T_jup = 3.292 
[ 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 12.9   n/a MPO435793  
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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