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22394 Kondouakira (1994 TO)
Classification: Main-belt Asteroid          SPK-ID: 2022394
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1911449654987668 1.0229e-08  
a 2.678117744749462 9.9161e-09 au
q 2.166209020827691 2.6079e-08 au
i 11.11894691168798 7.1011e-07 deg
node 6.072236326916537 4.9783e-06 deg
peri 290.5210415928474 8.3092e-06 deg
M 50.4108503664163 5.607e-06 deg
tp 2458976.336731602444
(2020-May-06.83673160)
2.4704e-05 TDB
period 1600.821569891266
4.38
8.8909e-06
2.434e-08
d
yr
n .2248845260277525 1.249e-09 deg/d
Q 3.190026468671233 1.1812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2032  
   data-arc span      17656 days (48.34 yr)  
   first obs. used      1972-10-05  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:05:21  

Additional Information
 Earth MOID = 1.17895 au 
 Jupiter MOID = 2.16808 au 
 T_jup = 3.325 
[ 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 13.81   n/a E2021B10  
diameter diameter 9.362 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.116   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22394 Kondouakira           Discovered 1994 Oct. 2 by K. Endate and K. Watanabe at Kitami.
Akira Kondou (b. 1943) has been director of the Saga City Hoshizora Astronomy Center since 2016. He is a widely respected astronomy scholar and a keen popularizer of astronomy.
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 2019-12-12Last Updated: 2019-12-13

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1964-Mar-12 05:30 < 00:01 Thisb 0.0457265830463357 0.0457184083939222 0.0457347581873313 4.05475031672337 4.05475027994928 2438466.729041099 0.619436358297744 471.223558252257 40.131438750646 30.2796816766105 86807.1788289019 T 34 CATAB v2.0f-lin.ifort 2021-Apr-13 04:06:03 2021-Apr-13 04:06

Alternate Designations
 1994 TO = 1972 TA3 = 1985 QE1 = 1985 RX1 = 1999 XO208 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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