They do seem to have star trackers, but rely on NORAD for other satellites Details towards the end: https://techcrunch.com/2019/05/24/spacex-reveals-more-starl

They do seem to have star trackers, but rely on NORAD for other satellites Details towards the end: https://techcrunch.com/2019/05/24/spacex-reveals-more-starlink-info-after-launch-of-first-60-satellites/ https://techcrunch.com/2019/05/24/spacex-reveals-more-starli...