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
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 ]  
10009 Hirosetanso (1977 EA6)
Classification: Main-belt Asteroid          SPK-ID: 2010009
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1042334397454051 3.6242e-08  
a 2.39848057456943 9.186e-09 au
q 2.148478694119523 8.8494e-08 au
i 4.113357943826598 4.2801e-06 deg
node 307.2792610916391 5.8124e-05 deg
peri 112.777933027599 6.2272e-05 deg
M 226.9625271554366 2.3741e-05 deg
tp 2459101.888329308065
(2020-Sep-09.38832931)
9.0703e-05 TDB
period 1356.759074654051
3.71
7.7944e-06
2.134e-08
d
yr
n .2653381921118113 1.5243e-09 deg/d
Q 2.648482455019337 1.0143e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1524  
   data-arc span      15565 days (42.61 yr)  
   first obs. used      1977-03-12  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51127  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:21:05  

Additional Information
 Earth MOID = 1.16479 au 
 Jupiter MOID = 2.61474 au 
 T_jup = 3.516 
[ 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 14.1   n/a MPO395098  
diameter diameter 4.300 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.182   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10009 Hirosetanso           Discovered 1977 Mar. 12 by H. Kosai and K. Hurukawa at the Kiso Station of the Tokyo Astronomical Observatory.
Hirose Tanso (1782-1856) was a Confucian scholar in the Edo period, born at Hita, Oita prefecture.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1977 EA6 = 1979 VC2 = 1990 VG8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-05 17:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin