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 ]  
13529 Yokaboshi (1991 RE1)
Classification: Main-belt Asteroid          SPK-ID: 2013529
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09620643603989405 3.0276e-08  
a 2.241076872986338 6.3287e-09 au
q 2.025470854144892 6.7941e-08 au
i 4.363574156133239 3.3834e-06 deg
node 312.642313851389 4.5871e-05 deg
peri 173.5638713514735 5.0405e-05 deg
M 61.50252561893991 2.0271e-05 deg
tp 2458791.149497582354
(2019-Nov-03.64949758)
6.8839e-05 TDB
period 1225.41603148641
3.36
5.1908e-06
1.421e-08
d
yr
n .2937777789338415 1.2444e-09 deg/d
Q 2.456682891827783 6.9375e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2097  
   data-arc span      10382 days (28.42 yr)  
   first obs. used      1991-09-01  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:40:23  

Additional Information
 Earth MOID = 1.04074 au 
 Jupiter MOID = 2.58217 au 
 T_jup = 3.624 
[ 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 13.8   n/a MPO350910  

13529 Yokaboshi           Discovered 1991 Sept. 1 by T. Seki at Geisei.
Yokaboshi is a local astronomical group established at Baloon Yoka Astronomical Observatory in 1992 in collaboration with the local government. Equipped with a 0.4-m reflector, the group continues to popularize astronomy and educate the public. The name was suggested by H. Kosai.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

Alternate Designations
 1991 RE1 = 1998 SN61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-05 07:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin