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22745 Rikuzentakata (1998 TN34)
Classification: Main-belt Asteroid          SPK-ID: 2022745
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128878069913441 1.7823e-08  
a 2.71220056942758 9.4694e-09 au
q 2.406026195024226 4.7403e-08 au
i 13.00794561674808 3.9866e-07 deg
node 44.07243136684276 2.631e-06 deg
peri 213.4337612087598 1.0805e-05 deg
M 110.4122802984172 9.7005e-06 deg
tp 2458700.124531671338
(2019-Aug-04.62453167)
4.3243e-05 TDB
period 1631.477659110539
4.47
8.5442e-06
2.339e-08
d
yr
n .2206588597702695 1.1556e-09 deg/d
Q 3.018374943830935 1.0538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2306  
   data-arc span      10517 days (28.79 yr)  
   first obs. used      1992-04-28  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46748  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:11:12  

Additional Information
 Earth MOID = 1.40115 au 
 Jupiter MOID = 2.02945 au 
 T_jup = 3.316 
[ 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 13.57   n/a E2021B10  
diameter diameter 4.899 km 0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.343   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22745 Rikuzentakata           Discovered 1998 Oct. 14 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
A city in Iwate, Japan, Rikuzentakata was heavily damaged by the 2011 tsunami. Its nationally designated place of scenic beauty, Takata-matsubara, was so affected that there remained only one of 70000 palm trees.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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