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11959 Okunokeno (1994 GG1)
Classification: Main-belt Asteroid          SPK-ID: 2011959
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1545833867950704 3.8779e-08  
a 2.64835140627738 1.3256e-08 au
q 2.238960276471535 1.0025e-07 au
i 13.30111220891725 3.1574e-06 deg
node 142.3369724850434 1.8585e-05 deg
peri 70.11030841009148 2.2277e-05 deg
M 109.399598496217 1.0575e-05 deg
tp 2458918.117735760609
(2020-Mar-09.61773576)
4.729e-05 TDB
period 1574.207012579996
4.31
1.1819e-05
3.236e-08
d
yr
n .2286865686171666 1.717e-09 deg/d
Q 3.057742536083224 1.5305e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      13277 days (36.35 yr)  
   first obs. used      1985-02-13  
   last obs. used      2021-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48317  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:50:50  

Additional Information
 Earth MOID = 1.27609 au 
 Jupiter MOID = 2.01897 au 
 T_jup = 3.337 
[ 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 13.91   n/a E2021B10  
diameter diameter 6.663 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.144   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11959 Okunokeno           Discovered 1994 Apr. 13 by K. Endate and K. Watanabe at Kitami.
Keno Okuno (b. 1932), an amateur astronomer and a member of the Kawasaki Astronomical Association, has greatly contributed to the popularization of astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1994 GG1 = 1985 CD1 = 1998 HX6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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