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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 ]

[ show orbit diagram ]
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
(2022-Oct-09.24220434)
7.8121e-05 TDB
period 2051.633674973081
5.62
2.1566e-05
5.904e-08
d
yr
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456458.5 (2013-Jun-15.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .263713932756296 4.8425e-08  
q 2.327762117415817 1.5589e-07 au
tp 2455758.787946774483
(2011-Jul-16.28794677)
5.3804e-05 TDB
node 311.775190789626 1.8587e-05 deg
peri 47.36884390972973 2.1104e-05 deg
i 15.17868223316934 6.0492e-06 deg
  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
 Jupiter MOID = 1.62058 au 
 T_jup = 3.097 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.345005475572783E-15 -7.509079421361826E-15 -5.369980356480595E-13 1.812349661809993E-15 -1.352128308552114E-13 -3.144105605712438E-15
q -7.509079421361826E-15 2.430223637005588E-14 1.948050852713953E-12 -4.005207347236709E-15 4.856450462327518E-13 1.095259278922061E-14
tp -5.369980356480595E-13 1.948050852713953E-12 2.894852704207813E-9 -1.513583822842008E-11 5.647655274088914E-10 -2.160477291932098E-12
node 1.812349661809993E-15 -4.005207347236709E-15 -1.513583822842008E-11 3.454744909829749E-10 -3.350940106757249E-10 2.120596441450486E-11
peri -1.352128308552114E-13 4.856450462327518E-13 5.647655274088914E-10 -3.350940106757249E-10 4.453960334129181E-10 -2.067954914819517E-11
i -3.144105605712438E-15 1.095259278922061E-14 -2.160477291932098E-12 2.120596441450486E-11 -2.067954914819517E-11 3.659244711841418E-11

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] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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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