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8182 Akita (1992 TX)
Classification: Main-belt Asteroid          SPK-ID: 2008182
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08915888619048754 2.1826e-08  
a 2.880178474674403 1.1633e-08 au
q 2.623384969842616 6.7815e-08 au
i 1.857438119022363 7.8936e-07 deg
node 16.82078412063754 2.6958e-05 deg
peri 355.7061955760099 2.9123e-05 deg
M 276.1627671289311 8.392e-06 deg
tp 2459616.278436846131
(2022-Feb-05.77843685)
4.2476e-05 TDB
period 1785.367099302965
4.89
1.0816e-05
2.961e-08
d
yr
n .2016392035792245 1.2216e-09 deg/d
Q 3.13697197950619 1.267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2715  
   data-arc span      12072 days (33.05 yr)  
   first obs. used      1987-08-28  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:23:46  

Additional Information
 Earth MOID = 1.62198 au 
 Jupiter MOID = 2.32765 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456710.5 (2014-Feb-22.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08914006788900365 2.1844e-08  
q 2.622019591834975 6.809e-08 au
tp 2456056.748260800730
(2012-May-09.24826080)
4.0806e-05 TDB
node 16.87615210144778 2.695e-05 deg
peri 357.276346552262 2.9104e-05 deg
i 1.858157515918339 7.8973e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2715  
   data-arc span      12072 days (33.05 yr)  
   first obs. used      1987-08-28  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 20:23:46  

Additional Information
 Jupiter MOID = 2.32765 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.771539547828624E-16 -1.471640839147265E-15 -2.942138398272904E-13 -5.544746621224382E-14 2.111097494268279E-14 -3.972280538914664E-16
q -1.471640839147265E-15 4.636244450714688E-15 7.822116643961855E-13 1.617666048614463E-13 -6.715491424519137E-14 7.201086368533527E-16
tp -2.942138398272904E-13 7.822116643961855E-13 1.665160148702448E-9 -1.690478729599954E-10 4.548880646244639E-10 -9.291341866438943E-12
node -5.544746621224382E-14 1.617666048614463E-13 -1.690478729599954E-10 7.263121484718662E-10 -7.608830869940076E-10 7.743233616935346E-12
peri 2.111097494268279E-14 -6.715491424519137E-14 4.548880646244639E-10 -7.608830869940076E-10 8.47043858632193E-10 -9.520315191259662E-12
i -3.972280538914664E-16 7.201086368533527E-16 -9.291341866438943E-12 7.743233616935346E-12 -9.520315191259662E-12 6.236774857059462E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.97   n/a E2021B10  
diameter diameter 7.073 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.294   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8182 Akita           Discovered 1992 Oct. 1 by M. Yanai and K. Watanabe at Kitami.
Named in honor of Isao Akita (b. 1948), president of the comet observers network in Japan, "Hoshi no Hiroba", since 1988. He is a well-known amateur astronomer and keen observer and photographer of comets and galaxies. He is especially at home assisting in the efforts of other comet enthusiasts, both within his group and throughout the country. Name proposed by the discoverers following a suggestion by Y. Yamada.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1992 TX = 1987 QR12 = 1990 FX4 = 1992 SR26 = 1994 BJ5 = 1995 GT8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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