Library

Index

Interface

SAASGP4.DTGToUTC — Method.

DTGToUTC(dtg)

Converts a time in one of the DTG formats to a time in ds50UTC. DTG15, DTG17, DTG19, and DTG20 formats are accepted

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SAASGP4.astroFuncGetInfo — Method.

astroFuncGetInfo()

Returns information about the AstroFunc DLL

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SAASGP4.astroFuncInit — Method.

astroFuncInit(mainHandle)

Initializes AstroFunc DLL for use in the program

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SAASGP4.closeLogFile — Method.

closeLogFile()

Closes the currently open log file

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SAASGP4.envGetFkConst — Method.

envGetFkConst(id)

Retrieves the value of one of the constants from the current fundamental catalogue (FK) model

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SAASGP4.envGetFkIdx — Method.

Returns the current fundamental catalogue (FK) setting

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SAASGP4.envGetFkPtr — Method.

envGetFkPtr()

Returns a handle that can be used to access the fundamental catalogue (FK) data structure

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SAASGP4.envGetGeoConst — Method.

envGetGeoConst(id)

Retrieves the value of one of the constants from the current Earth constants (GEO) model

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SAASGP4.envGetGeoIdx — Method.

Returns the current Earth constants (GEO) setting

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SAASGP4.envGetGeoStr — Method.

envGetGeoStr()

Returns the name of the current Earth constants (GEO) model

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SAASGP4.envGetInfo — Method.

envGetInfo()

Returns information about the EnvConst DLL

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SAASGP4.envInit — Method.

envInit(mainHandle::Clonglong)

Initializes the EnvInit DLL for use in the program

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SAASGP4.envLoadFile — Method.

envLoadFile(path)

Reads Earth constants (GEO) model and fundamental catalogue (FK) model settings from a file

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SAASGP4.envSaveFile — Function.

envSaveFile(path, append = 0, format = 0)

Saves the current Earth constants (GEO) model and fundamental catalogue (FK) model settings to a file

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SAASGP4.envSetFkIdx — Method.

envSetFkIdx(id)

Changes the fundamental catalogue (FK) setting to the specified value

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SAASGP4.envSetGeoIdx — Method.

envSetGeoIdx(id)

Changes the Earth constants (GEO) setting to the specified value

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SAASGP4.envSetGeoStr — Method.

envSetGeoStr(geoStr)

Changes the Earth constants (GEO) setting to the model specified by a string literal

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SAASGP4.getInitDllNames — Method.

getInitDllNames()

Returns a list of names of the Standardized Astrodynamic Algorithms DLLs that were initialized successfully

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SAASGP4.getLastErrMsg — Method.

getLastErrMsg()

Returns a character string describing the last error that occurred

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SAASGP4.getLastInfoMsg — Method.

getLastInfoMsg()

Returns a character string describing the last informational message that was recorded

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SAASGP4.mainGetInfo — Method.

mainGetInfo()

Returns information about the DllMain DLL

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SAASGP4.mainInit — Method.

mainInit()

Returns a handle which can be used to access the static global data set needed by the Standardized Astrodynamic Algorithms DLLs to communicate among themselves

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SAASGP4.openLogFile — Method.

openLogFile(path)

Opens a log file and enables the writing of diagnostic information into it

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SAASGP4.sgp4GetInfo — Method.

sgp4GetInfo()

Returns information about the Sgp4 DLL

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SAASGP4.sgp4GetPropOut — Method.

sgp4GetPropOut(satkey, index)

Retrieves propagator's precomputed results. This function can be used to obtain results from a propagation which are not made available through calls to the propagation functions themselves.

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SAASGP4.sgp4Init — Method.

sgp4Init(mainHandle)

Initializes the Sgp4 DLL for use in the program

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SAASGP4.sgp4InitSat — Method.

sgp4InitSat(satkey)

Initializes an SGP4 satellite from an SGP or SGP4 TLE

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SAASGP4.sgp4PropDs50UTC! — Method.

sgp4PropDs50UTC!(pos, vel, llh, mse, satkey, ds50UTC)

Propagates a satellite, represented by the satKey, to the time expressed in days since 1950, UTC

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SAASGP4.sgp4PropDs50UTC — Method.

sgp4PropDs50UTC(satkey, ds50UTC)

Propagates a satellite, represented by the satKey, to the time expressed in days since 1950, UTC

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SAASGP4.sgp4PropMse! — Method.

sgp4PropMse!(pos, vel, llh, ds50UTC, satkey, mse)

Propagates a satellite, represented by the satKey, to the time expressed in minutes since the satellite's epoch time. Stores the results in the provided variables.

Examples

julia> pos = Array{Cdouble, 1}(undef, 3)
3-element Array{Float64,1}:
 0.0
 0.0
 0.0

julia> vel = Array{Cdouble, 1}(undef, 3)
3-element Array{Float64,1}:
 0.0
 0.0
 0.0

julia> llh = Array{Cdouble, 1}(undef, 3)
3-element Array{Float64,1}:
 0.0
 0.0
 0.0

julia> ds50UTC = Ref{Cdouble}(0.0)
Base.RefValue{Float64}(0.0)

julia> SAASGP4.sgp4PropMse!(pos, vel, llh, ds50UTC, satkey, mse)

julia> pos
3-element Array{Float64,1}:
 42155.0257401623
   980.5342672211367
    -9.307135121360039

julia> vel
3-element Array{Float64,1}:
 -0.07133558166329691
  3.07373221015029
 -0.0018402927526264539

julia> llh
3-element Array{Float64,1}:
    -0.012659361941212956
    34.46169610621692
 35788.29393717118

julia> ds50UTC[]
18314.489312984446

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SAASGP4.sgp4PropMse — Method.