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 ]  
9782 Edo (1994 WM)
Classification: Main-belt Asteroid          SPK-ID: 2009782
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583340893020368 3.0998e-08  
a 2.555106498871027 7.5989e-09 au
q 2.150546038302567 8.2143e-08 au
i 8.950451408578347 3.8977e-07 deg
node 60.39211972034588 5.3325e-06 deg
peri 127.6565495675426 7.7444e-06 deg
M 31.06703950784583 4.5164e-06 deg
tp 2459071.761244752407
(2020-Aug-10.26124475)
1.8454e-05 TDB
period 1491.80458206934
4.08
6.655e-06
1.822e-08
d
yr
n .2413184704799806 1.0765e-09 deg/d
Q 2.959666959439486 8.8021e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2676  
   data-arc span      9801 days (26.83 yr)  
   first obs. used      1993-08-17  
   last obs. used      2020-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44811  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:37:18  

Additional Information
 Earth MOID = 1.16275 au 
 Jupiter MOID = 2.02659 au 
 T_jup = 3.403 
[ 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 13.23   n/a E2021B10  
diameter diameter 6.012 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.085 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.213   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9782 Edo           Discovered 1994 Nov. 25 by T. Kobayashi at Oizumi.
Edo is the former name for Tokyo, the capital and largest city of Japan. Edo became the center of Japanese politics in 1603, when Tokugawa Ieyasu opened the "Edo Bakufu" shogunate there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

Alternate Designations
 1994 WM = 1996 HB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-19 01:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin