2024 Apr 17 ~22:51 UT: (850) Altona occults UCAC4 558-030160 (11.9 mag)
Last update: 2024 Mar 31, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1202-850-92542-649345-U030160 Preliminary prediction by S. Preston (IOTA): https://asteroidoccultation.com/2024/2024_04/0417_850_90894.htm