UTDF-GO

UTDFGO is a UTDF Spacecraft Packet Decoder Written In Golang

USAGE

---

    go get "github.com/ATTron/utdfgo"

Using utdfgo in GO programs

    import "github.com/ATTron/utdfgo"

    . . .

    utdf, err := utdfgo.Run(filename)
    if err != nil {
      check(err)
    }
    for _, p := range utdf {
        // run functions on p
        p.GetYear()
    }

You can run the extraction functions with the returned utdf struct

Functions

Getting Started

Run(filename string)

returns an array of utdf packets from the file given

---

Time Based Functions

GetYear()

returns the year taken from byte 6

GetSeconds()

returns the seconds of year taken from bytes 11:14

GetMicroseconds()

returns microseconds of seconds taken from bytes 15:18

GetEpoch()

returns a UTC epoch built from other time functions

GetTimestamps()

returns all time information for given utdf packet

---

Angle Based Functions

GetAzimuth()

returns azimuth taken from bytes 19:22

GetElevation()

returns elevation taken from bytes 23:26

---

Range + Doppler Based Functions

GetRangeDelay()

returns range delay hi and lo

GetRange()

returns calculated range of spacecraft

GetDopplerDelay()

returns doppler delay hi and lo

GetDoppler()

returns calculated doppler count

---

Misc Functions

GetAGC()

returns spacecraft AGC taken from bytes 39:40

GetTransmitFreq()

returns transmission frequency taken from bytes 41:44

GetAntennaType()

returns antenna type taken from byte 45

GetPADID()

returns antenna padid taken from byte 46

GetRecieveAntennaType()

returns recieve antenna type taken from byte 47

GetRecievePADID()

returns recieve antenna padid taken from byte 48

GetSystemMode()

return system mode taken from bytes 49:50

GetDataValidation()

return data validity taken from byte 51

GetFrequencyBand()

return frequency band taken from byte 52

GetTrackingInfo()

return tracking type and data taken from bytes 53:54