116 lines
3.8 KiB
Markdown
116 lines
3.8 KiB
Markdown
# auto-scheduler
|
|
|
|
This is a tool to automatically compute passes of satellites on the
|
|
SatNOGS network. It uses code from the SatNOGS network scheduler. It requires
|
|
[python-satellitetle](https://gitlab.com/librespacefoundation/python-satellitetle) for downloading TLEs.
|
|
|
|
## Dependencies
|
|
|
|
```bash
|
|
sudo apt-get install libxml2-dev libxslt1-dev
|
|
pip install -r requirements.txt
|
|
```
|
|
|
|
## Configuration
|
|
|
|
Copy the env-dist file to .env and set your SatNOGS Network API token.
|
|
|
|
## Test run
|
|
|
|
Perform a test run to download orbital elements and transmitter priorities (these are stored in `/tmp/cache`) with
|
|
|
|
```bash
|
|
schedule_single_station.py -s <ground station ID> -n
|
|
```
|
|
|
|
The `-n` option computes the passes but does not schedule them. To schedule these passes, run
|
|
|
|
```bash
|
|
schedule_single_station.py -s <ground station ID>
|
|
```
|
|
|
|
## Setup priority scheduling
|
|
|
|
The following commands will add a list consisting of all DUV, BPSK1k2, BPSK9k6, [G]MSK and [G]FSK transmitters into `priorities_37.txt`.
|
|
Please change the station id (here `37` - in the cache file and the list file name) to your corresponding one!
|
|
|
|
```bash
|
|
STATION_ID=37
|
|
TRM_FILE="/tmp/cache/transmitters_${STATION_ID}.txt"
|
|
PRIO_FILE="priorities_${STATION_ID}.txt"
|
|
|
|
awk '{if ($3>=80) print $0 }' ${TRM_FILE} | grep -e "FSK" | awk '{printf("%s 1.0 %s\n",$1,$2)}' > ${PRIO_FILE}
|
|
awk '{if ($3>=0) print $0 }' ${TRM_FILE} | grep -e "BPSK1k2" | awk '{printf("%s 1.0 %s\n",$1,$2)}' >> ${PRIO_FILE}
|
|
awk '{if ($3>=0) print $0 }' ${TRM_FILE} | grep -e "BPSK9k6" | awk '{printf("%s 1.0 %s\n",$1,$2)}' >> ${PRIO_FILE}
|
|
awk '{if ($3>=80) print $0 }' ${TRM_FILE} | grep -e "MSK" | awk '{printf("%s 1.0 %s\n",$1,$2)}' >> ${PRIO_FILE}
|
|
sort -n -k 4 ${TRM_FILE} | grep -e "DUV" | awk '{printf("%s 1.0 %s\n",$1,$2)}' >> ${PRIO_FILE}
|
|
```
|
|
|
|
## Add cron-job
|
|
|
|
Start editing your default user's cron (select your preferred editor):
|
|
```bash
|
|
crontab -e
|
|
```
|
|
|
|
Add a line like this - execute the scheduling script on each full hour:
|
|
```bash
|
|
0 */1 * * * <path_to_auto_scheduler>/schedule_single_station.py -s <station_id> -d 1.2 -P <path_to_priority_list>/<priority_file>.txt -f -z
|
|
```
|
|
|
|
Omit the `-f` option to also fill in the gaps, but be aware if using a rotator setup! This will wear-out your rotator very quickly!
|
|
Add `-w 60` for a delay if you want to give your rotator a bit of time (60 s) to reset or home.
|
|
|
|
## Add systemd-timer
|
|
The advantage of using a systemd-timer for invoking the auto-scheduler lies in the better logging output (you can use `journalctl -u satnogs-auto-scheduler.service` to access the log output).
|
|
|
|
- Add a systemd service unit file at `/etc/systemd/system/satnogs-auto-scheduler.service`:
|
|
```
|
|
[Unit]
|
|
Description=Schedule SatNOGS observations for 1.2h on station 132
|
|
|
|
[Service]
|
|
Type=oneshot
|
|
ExecStart=<path_to_auto_scheduler>/env/bin/python <path_to_auto_scheduler>/schedule_single_station.py -s <station_id> -d 1.2 -P <path_to_priority_list>/<priority_file>.txt -z
|
|
User=pi
|
|
```
|
|
|
|
- Add a systemd timer unit file at `/etc/systemd/system/satnogs-auto-scheduler.timer`:
|
|
```
|
|
[Unit]
|
|
Description=Run satnogs-auto-scheduler hourly and on boot
|
|
|
|
[Timer]
|
|
OnBootSec=2min
|
|
OnUnitActiveSec=1h
|
|
|
|
[Install]
|
|
WantedBy=timers.target
|
|
```
|
|
|
|
- Start the timer with
|
|
```bash
|
|
sudo systemctl start satnogs-auto-scheduler.timer
|
|
```
|
|
|
|
- Enable the timer to be started on boot with
|
|
```bash
|
|
sudo systemctl enable satnogs-auto-scheduler.timer
|
|
```
|
|
|
|
If you want to run the auto-scheduler once manually, you can do so with
|
|
```bash
|
|
sudo systemctl start satnogs-auto-scheduler.service
|
|
```
|
|
|
|
## Usage
|
|
|
|
The following command will list all available command-line arguments:
|
|
```bash
|
|
./schedule_single_station.py --help
|
|
```
|
|
|
|
## License
|
|
[](LICENSE)
|
|
Copyright 2019 - Cees Bassa, Fabian Schmidt, Pierros Papadeas
|