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17445 Avatcha (1989 YC5)
Classification: Main-belt Asteroid          SPK-ID: 2017445
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2647739926381519 4.8543e-08  
a 3.159858205442537 2.2144e-08 au
q 2.323209932217091 1.5634e-07 au
i 15.18547892214276 6.0522e-06 deg
node 311.7682591034231 1.8581e-05 deg
peri 46.96902348166806 2.1071e-05 deg
M 208.8778979673151 1.2537e-05 deg
tp 2459861.742204341595
7.8121e-05 TDB
period 2051.633674973081
n .1754699215515282 1.8445e-09 deg/d
Q 3.996506478667982 2.8007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1399  
   data-arc span      15533 days (42.53 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47951  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:36:35  

Additional Information
 Earth MOID = 1.3461 au 
 Jupiter MOID = 1.62058 au 
 T_jup = 3.097 
[ 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 12.6   n/a MPO395170  
diameter diameter 20.495 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.038   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

17445 Avatcha           Discovered 1989 Dec. 28 by E. W. Elst at Haute Provence.
Avatcha Bay, on the southeastern coast of the Kamchatka peninsula, was used by Vitus Bering as a base during the expeditions that resulted in the discovery of Alaska. The French astronomer Louis Delisle de la Croyère (1690-1741) died from scurvy during the second expedition and was buried at the edge of the bay.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

[ show close-approach data ]
Alternate Designations
 1989 YC5 = 1977 US2 = 1996 CH9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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