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22106 Tomokoarai (2000 NC12)
Classification: Main-belt Asteroid          SPK-ID: 2022106
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2564616730070086 1.8177e-08  
a 2.603419421830598 1.1969e-08 au
q 1.935742121368984 4.6382e-08 au
i 24.34865687556856 5.8791e-07 deg
node 239.0836190997156 1.4745e-06 deg
peri 251.2804252520894 2.7723e-06 deg
M 156.3648153350602 4.1398e-06 deg
tp 2458534.075165171972
(2019-Feb-19.57516517)
1.3379e-05 TDB
period 1534.315376665794
4.20
1.0581e-05
2.897e-08
d
yr
n .2346323353561851 1.6181e-09 deg/d
Q 3.271096722292212 1.5039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1752  
   data-arc span      24570 days (67.27 yr)  
   first obs. used      1953-07-12  
   last obs. used      2020-10-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37047  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:00:22  

Additional Information
 Earth MOID = 1.07547 au 
 Jupiter MOID = 2.36357 au 
 T_jup = 3.244 
[ 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 12.88   n/a E2021B10  
diameter diameter 12.038 km 0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.101   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22106 Tomokoarai           Discovered 2000 July 5 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Tomoko Arai (b. 1971) is a scientist at the Chiba Institute of Technology who studies the compositional properties of meteors to determine the wide range of properties for their asteroid and comet source bodies. She also develops new techniques for studying meteors from space platforms.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

Alternate Designations
 2000 NC12 = 1980 WD1 = 1987 NC = 1999 NA3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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