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 ]  
10355 Kojiroharada (1993 EQ)
Classification: Main-belt Asteroid          SPK-ID: 2010355
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04695454482634651 4.0149e-08  
a 2.284872399103827 7.6469e-09 au
q 2.177587255617625 9.1626e-08 au
i 7.174478109918661 4.6055e-06 deg
node 14.39470241544814 2.7275e-05 deg
peri 156.7489195479666 4.6876e-05 deg
M 210.2640909054129 3.8119e-05 deg
tp 2459125.204534049636
(2020-Oct-02.70453405)
0.00013385 TDB
period 1261.511907197533
3.45
6.3329e-06
1.734e-08
d
yr
n .2853718605001084 1.4326e-09 deg/d
Q 2.39215754259003 8.0059e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1928  
   data-arc span      10288 days (28.17 yr)  
   first obs. used      1991-10-07  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44582  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:02:12  

Additional Information
 Earth MOID = 1.18348 au 
 Jupiter MOID = 2.56934 au 
 T_jup = 3.591 
[ 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 14.4   n/a MPO452316  
diameter diameter 4.404 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.209   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10355 Kojiroharada           Discovered 1993 Mar. 15 by K. Endate and K. Watanabe at Kitami.
Kojiro Harada (b. 1926), mechanical engineer, is a member of Kawasaki Astronomical Association. A long-time observer of double stars, he has also written many fairy tales on stars, dramatizing and performing in them himself.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-27 09:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin