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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621947354954851 2.2302e-08  
a 2.796242246120823 1.07e-08 au
q 2.342706474629955 6.2812e-08 au
i 8.20315699426795 1.7433e-06 deg
node 121.3549491211797 1.2301e-05 deg
peri 42.99688793835112 1.4522e-05 deg
M 233.4762988224632 1.0483e-05 deg
tp 2459800.747006853067
(2022-Aug-09.24700685)
5.1614e-05 TDB
period 1707.892833168786
4.68
9.8029e-06
2.684e-08
d
yr
n .2107860592939336 1.2099e-09 deg/d
Q 3.249778017611691 1.2435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2250  
   data-arc span      16409 days (44.93 yr)  
   first obs. used      1976-04-03  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:38:56  

Additional Information
 Earth MOID = 1.35861 au 
 Jupiter MOID = 1.75842 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 12.99   n/a MPCxxxxx  
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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