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13529 Yokaboshi (1991 RE1)
Classification: Main-belt Asteroid          SPK-ID: 2013529
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09608630531050322 1.4156e-08  
a 2.241199290544405 5.5026e-09 au
q 2.025850731251472 3.2101e-08 au
i 4.363577837999285 7.3994e-07 deg
node 312.6414555482572 5.5872e-06 deg
peri 173.5952897807379 9.1244e-06 deg
M 120.2372284031403 7.376e-06 deg
tp 2458791.186944362920
(2019-Nov-03.68694436)
2.5003e-05 TDB
period 1225.516439345173
3.36
4.5134e-06
1.236e-08
d
yr
n .293753709409527 1.0818e-09 deg/d
Q 2.456547849837338 6.0314e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2425  
   data-arc span      10542 days (28.86 yr)  
   first obs. used      1991-09-01  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:00:01  

Additional Information
 Earth MOID = 1.04104 au 
 Jupiter MOID = 2.58148 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 13.88   n/a E2021B10  

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 ]
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