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11515 Oshijyo (1991 CR1)
Classification: Main-belt Asteroid          SPK-ID: 2011515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08656153595432405 1.7198e-08  
a 3.149676419424986 1.5645e-08 au
q 2.877035590800443 5.8682e-08 au
i 7.881303017962249 1.0184e-06 deg
node 110.8693991927891 3.1067e-06 deg
peri 306.0004787672899 1.0794e-05 deg
M 200.3967213185625 1.1939e-05 deg
tp 2460105.683530131850
(2023-Jun-10.18353013)
6.9842e-05 TDB
period 2041.725417795978
5.59
1.5213e-05
4.165e-08
d
yr
n .1763214567748372 1.3138e-09 deg/d
Q 3.422317248049529 1.7e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2261  
   data-arc span      13036 days (35.69 yr)  
   first obs. used      1984-12-20  
   last obs. used      2020-08-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45982  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:49:00  

Additional Information
 Earth MOID = 1.89782 au 
 Jupiter MOID = 1.86421 au 
 T_jup = 3.188 
[ 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 12.56   n/a E2021B10  
diameter diameter 9.672 km 0.256 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.34 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.249   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11515 Oshijyo           Discovered 1991 Feb. 12 by M. Arai and H. Mori at Yorii.
Oshijyo, the symbol of Gyoda Ichi, is located in the central part of that city and dates from the Muromachi period.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1991 CR1 = 1984 YV6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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