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21328 Otashi (1997 AM13)
Classification: Main-belt Asteroid          SPK-ID: 2021328
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04329003318510641 3.4919e-08  
a 2.361062480871078 7.3847e-09 au
q 2.258852007722059 8.1841e-08 au
i 7.175435483982932 3.3415e-06 deg
node 54.35620540211599 2.874e-05 deg
peri 107.6379353722043 4.6617e-05 deg
M 230.8891788327531 3.7584e-05 deg
tp 2459871.747443556421
(2022-Oct-19.24744356)
0.00013886 TDB
period 1325.133541352719
3.63
6.2169e-06
1.702e-08
d
yr
n .2716707326210353 1.2746e-09 deg/d
Q 2.463272954020097 7.7044e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1830  
   data-arc span      9682 days (26.51 yr)  
   first obs. used      1994-04-15  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47596  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:43:30  

Additional Information
 Earth MOID = 1.27705 au 
 Jupiter MOID = 2.51255 au 
 T_jup = 3.539 
[ 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 14.51   n/a E2021B10  

21328 Otashi           Discovered 1997 Jan. 11 by T. Kobayashi at Oizumi.
In Mar. 2005 Ota city and three neighboring towns in the eastern part of Gunma prefecture were combined to form a new Ota city. Astronomical outreach is energetically carried out there by the Ota Uchuno Kai (Ota Astronomical Club).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

Alternate Designations
 1997 AM13 = 1999 VX60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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