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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.

JPL Small-Body Database Browser
Search: [ help ]  
5508 Gomyou (1988 EB)
Classification: Main-belt Asteroid          SPK-ID: 2005508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2232178463078975 2.7986e-08  
a 2.843870393864697 1.2567e-08 au
q 2.209067769367427 7.926e-08 au
i 6.76765155685564 4.2954e-06 deg
node 36.14756574129038 3.2933e-05 deg
peri 70.91539670491362 3.5119e-05 deg
M 214.4684528323418 1.2304e-05 deg
tp 2459308.637792129651
6.2522e-05 TDB
period 1751.71370144911
n .2055130354362068 1.3622e-09 deg/d
Q 3.478673018361967 1.5372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2236  
   data-arc span      18523 days (50.71 yr)  
   first obs. used      1969-03-12  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46154  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 21:18:57  

Additional Information
 Earth MOID = 1.237 au 
 Jupiter MOID = 1.72934 au 
 T_jup = 3.261 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4   n/a MPO416772  
diameter diameter 15.358 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 8.802 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.093   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

5508 Gomyou           Discovered 1988 Mar. 9 at Oohira.
Gomyou is located in the north of Kakegawa City, where comet C/1994 N1 and nova V475 Sct (2003) were discovered by Hideo Nishimura. Recently many people have visited Gomyou to enjoy watching the stars. The name was suggested by S. Kaneko.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

[ show close-approach data ]
Alternate Designations
 1988 EB = 1948 UK = 1969 EV = 1986 SS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2019-Dec-10 19:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin