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11151 Oodaigahara (1997 YZ2)
Classification: Main-belt Asteroid          SPK-ID: 2011151
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191296353797899 3.4873e-08  
a 2.604664393178177 1.0219e-08 au
q 2.294371673732139 8.9553e-08 au
i 12.15685543180386 4.2217e-06 deg
node 270.0574307269783 1.7649e-05 deg
peri 164.8059203273237 2.5425e-05 deg
M 238.7661389793907 1.9653e-05 deg
tp 2459913.567834707317
8.5437e-05 TDB
period 1535.416086954373
n .2344641319436024 1.3799e-09 deg/d
Q 2.914957112624215 1.1437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2357  
   data-arc span      13860 days (37.95 yr)  
   first obs. used      1983-07-14  
   last obs. used      2021-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40078  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:36:42  

Additional Information
 Earth MOID = 1.31184 au 
 Jupiter MOID = 2.33113 au 
 T_jup = 3.371 
[ 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 12.51   n/a E2021B10  
diameter diameter 8.799 km 0.338 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 15.3498 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.274   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

11151 Oodaigahara           Discovered 1997 Dec. 24 by T. Kobayashi at Oizumi.
Oodaigahara is located on the southern end of the mountain-chain boundary between Nara and Mie prefectures. It affords beautiful views and is one of the 100 celebrated mountains in Japan. Oodaigahara is in the National Park of Yoshino-Kumano and was registered as a UNESCO world heritage site in 2004.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060413/MPCPages.arcLast Updated: 2006-04-17

Alternate Designations
 1997 YZ2 = 1983 NC1 = 1983 OP = 1984 WE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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