Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
5881 Akashi (1992 SR12)
Classification: Main-belt Asteroid          SPK-ID: 2005881
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08193046372058151 3.9152e-08  
a 2.854962777236219 1.2273e-08 au
q 2.621054352992257 1.1113e-07 au
i 2.684590886421016 4.206e-06 deg
node 48.5117889470453 8.5339e-05 deg
peri 337.7335754368557 8.8521e-05 deg
M 256.3436382211068 2.4944e-05 deg
tp 2459507.832358372049
(2021-Oct-20.33235837)
0.00012332 TDB
period 1761.972404583539
4.82
1.1361e-05
3.11e-08
d
yr
n .2043164802487867 1.3174e-09 deg/d
Q 3.088871201480182 1.3278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2219  
   data-arc span      18864 days (51.65 yr)  
   first obs. used      1968-10-23  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:24:45  

Additional Information
 Earth MOID = 1.62541 au 
 Jupiter MOID = 2.30138 au 
 T_jup = 3.297 
[ 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 12.6   n/a MPO439120  
diameter diameter 8.796 km 0.407 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.250   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-26 02:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin