FYST Telescope Control System (TCS)

Building

First, build liberfa:

./build-deps

Then:

go build

Running

export FYST_ACU_HOST=10.1.1.1
export FYST_ACU_PORT=8100
./telescope-control-system

Docker

Building

docker build --build-arg SSH_PRIVATE_KEY="$(cat ~/.ssh/id_rsa)" -t tcs .

Running

docker run --network host -e FYST_ACU_ADDR=127.0.0.1:8100 tcs

Updating

• Edit go.mod, updating the datasets library tag version.

• Run GOPRIVATE='github.com/ccatobs/*' go mod tidy.

Commands

/abort

Abort the current command.

curl -X POST 'http://localhost:5600/abort'

/acu/failure-reset

Reset failures. Needed after E-stops.

curl -X POST 'http://localhost:5600/acu/failure-reset'

/acu/position-broadcast

Enable the position broadcast UDP stream, or change where it's sent to.

curl -X POST 'localhost:5600/acu/position-broadcast' -d@- <<___
{
    "destination_host": "host.name",
    "destination_port": 100000
}
___

/acu/reboot

Reboot the ACU.

curl -X POST 'http://localhost:5600/acu/reboot'

/acu/status

Get the raw status of the ACU.

curl 'localhost:5600/acu/status'

/azimuth-scan

Scan repeatedly in azimuth, at constant elevation.

curl 'localhost:5600/azimuth-scan' -d@- <<___
{
  "azimuth_range": [110,130],
  "elevation": 60,
  "num_scans": 20,
  "start_time": 1615586380,
  "turnaround_time": 30,
  "speed": 0.8
}
___

/move-to

Move to the specified position.

curl 'localhost:5600/move-to' -d@- <<___
{
    "azimuth": 120,
    "elevation": 45
}
___

/path

Follow a path of points.

curl 'localhost:5600/path' -d@- <<___
{
    "start_time": 1615586629,
    "coordsys": "ICRS",
    "points": [
        [0,   103, -33, 0.05, -0.05],
        [60,  106, -36, 0.05, -0.05],
        [120, 109, -39, 0.05, -0.05],
        [180, 112, -42, 0.05, -0.05]
    ]
}
___

/track

Track a point on the sky.

curl 'localhost:5600/track' -d@- <<___
{
    "start_time": 1555190103,
    "stop_time": 1555190166,
    "ra": 120,
    "dec": 45,
    "coordsys": "ICRS"
}
___

/clear-track

Clear the current program track from telescope

curl -X POST 'localhost:5600/clear-track'

/telescope-position

Get details of telescope position (lat, long, elevation)