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5881 Akashi (1992 SR12)
Classification: Main-belt Asteroid          SPK-ID: 2005881
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0835816298493168 5.0035e-08  
a 2.851929405152257 2.2156e-08 au
q 2.613560497254439 1.4362e-07 au
i 2.687665664759934 5.5787e-06 deg
node 48.54185781468733 0.00011651 deg
peri 338.7434792418694 0.00012134 deg
M 287.8940507954077 3.7728e-05 deg
tp 2457752.850734363420
(2016-Dec-30.35073436)
0.0001863 JED
period 1759.165031042302
4.82
2.05e-05
5.613e-08
d
yr
n .2046425398683037 2.3847e-09 deg/d
Q 3.090298313050075 2.4007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1293  
   data-arc span      17035 days (46.64 yr)  
   first obs. used      1968-10-23  
   last obs. used      2015-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52414  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:28:47  

Additional Information
 Earth MOID = 1.6166 au 
 Jupiter MOID = 2.3093 au 
 T_jup = 3.298 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.5 mag n/a MPO263401  

5881 Akashi           Discovered 1992 Sept. 27 by M. Sugano and T. Nomura at Minami-Oda.
Named for a city facing the Setouchi Inland Sea. Akashi Municipal Planetarium was established in 1960 precisely on the meridian for Japan Standard Time ( 135\rm o east of Greenwich), and about 6.6 million people have visited it.
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 SR12 = 1968 UN2 = 1978 WQ6 = 1982 PK = 1987 RE3 = 1987 SR22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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