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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08378696444516343 5.0143e-08  
a 2.851022498811111 2.2201e-08 AU
q 2.612143978070863 1.4383e-07 AU
i 2.688072134830139 5.5925e-06 deg
node 48.54757663312833 0.00011716 deg
peri 338.9224438996081 0.00012196 deg
M 205.8390193838927 3.726e-05 deg
tp 2457753.459049268678
(2016-Dec-30.95904927)
0.00018602 JED
period 1758.325982705913
4.81
2.0538e-05
5.623e-08
d
yr
n .2047401923993586 2.3915e-09 deg/d
Q 3.089901019551358 2.4061e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1281  
   data-arc span      16680 days (45.67 yr)  
   first obs. used      1968-10-23  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51945  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:01:03  

Additional Information
 Earth MOID = 1.61662 AU 
 T_jup = 3.299 
[ 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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