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11930 Osamu (1993 CJ1)
Classification: Main-belt Asteroid          SPK-ID: 2011930
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09772936033890502 1.5098e-08  
a 2.567987386935373 8.8981e-09 au
q 2.317019622251803 4.1909e-08 au
i 13.36204509249386 9.3896e-07 deg
node 161.440150344758 5.4802e-06 deg
peri 345.3447349166108 1.0041e-05 deg
M 287.6729646325 1.1536e-05 deg
tp 2459502.485381114999
(2021-Oct-14.98538112)
4.8538e-05 TDB
period 1503.099589925267
4.12
7.8124e-06
2.139e-08
d
yr
n .2395050882941822 1.2448e-09 deg/d
Q 2.818955151618943 9.7677e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2299  
   data-arc span      11716 days (32.08 yr)  
   first obs. used      1989-02-04  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4701  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 22:52:43  

Additional Information
 Earth MOID = 1.32968 au 
 Jupiter MOID = 2.17609 au 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.70   n/a E2021B10  
diameter diameter 4.347 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.408   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11930 Osamu           Discovered 1993 Feb. 15 by T. Hioki and S. Hayakawa at Okutama.
Oshima Osamu (b. 1959) is a leading amateur astronomer and science teacher in Gunma prefecture and volunteer science instructor in great favor with children. His interests in astronomy are wide, currently CCD imaging of planetary nebulae.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1993 CJ1 = 1989 CM6 = 1991 VB17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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