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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2026 Apr 22 ~01:54 UT: (18655) 1998 FS26 occults UCAC4 418-116215 (13.0 mag) 2026 Apr 21 ~22:21 UT: (38950) 2000 ST295 occults HIP 67903 (8.7 mag) 2026 Apr 20 ~23:20 UT: (1668) Hanna occults HIP 68301 (9.0 mag) 2025 Apr 20 ~21:24 UT: (40966) 1999 TM250 occults TYC 1301-00068-1 (8.9 mag) 2026 Apr 20 ~20:33 UT: (18529) 1996 WK3 occults TYC 1337-01738-1 (8.0 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Apr 22 ~01:54 UT: (18655) 1998 FS26 occults UCAC4 418-116215 (13.0 mag)

2026-04-02
Main-Belt Asteroids Upcoming Occultation

2026 Apr 21 ~22:21 UT: (38950) 2000 ST295 occults HIP 67903 (8.7 mag)

2026-04-02
Main-Belt Asteroids Upcoming Occultation

2026 Apr 20 ~23:20 UT: (1668) Hanna occults HIP 68301 (9.0 mag)

2026-04-02
Main-Belt Asteroids Upcoming Occultation

2025 Apr 20 ~21:24 UT: (40966) 1999 TM250 occults TYC 1301-00068-1 (8.9 mag)

2026-04-02
Main-Belt Asteroids Upcoming Occultation

2026 Apr 20 ~20:33 UT: (18529) 1996 WK3 occults TYC 1337-01738-1 (8.0 mag)

2026-04-02
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  • Past Events
2026 Apr 29 ~01:14 UT: (15404) 1997 VE8 occults UCAC4 321-218017 (8.6 mag)
Main-Belt Asteroids
2026 Apr 29 ~01:14 UT: (15404) 1997 VE8 occults UCAC4 321-218017 (8.6 mag)
2026 Apr 28 ~22:28 UT: (47808) 2000 EG67 occults HIP 38501 (8.0 mag)
Main-Belt Asteroids
2026 Apr 28 ~22:28 UT: (47808) 2000 EG67 occults HIP 38501 (8.0 mag)
2026 Apr 28 ~02:33 UT: (3105) Stumpff occults HIP 95974 (6.5 mag)
Main-Belt Asteroids
2026 Apr 28 ~02:33 UT: (3105) Stumpff occults HIP 95974 (6.5 mag)
2026 Apr 27 ~03:10 UT: (69017) 2002 UK49 occults UCAC4 345-191617 (12.6 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Apr 27 ~03:10 UT: (69017) 2002 UK49 occults UCAC4 345-191617 (12.6 mag)
2026 Apr 29 ~01:14 UT: (15404) 1997 VE8 occults UCAC4 321-218017 (8.6 mag)
Main-Belt Asteroids
2026 Apr 29 ~01:14 UT: (15404) 1997 VE8 occults UCAC4 321-218017 (8.6 mag)
2025 Apr 20 ~21:24 UT: (40966) 1999 TM250 occults TYC 1301-00068-1 (8.9 mag)
Main-Belt Asteroids Upcoming Occultation
2025 Apr 20 ~21:24 UT: (40966) 1999 TM250 occults TYC 1301-00068-1 (8.9 mag)
2026 Apr 20 ~23:20 UT: (1668) Hanna occults HIP 68301 (9.0 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Apr 20 ~23:20 UT: (1668) Hanna occults HIP 68301 (9.0 mag)
2026 Apr 21 ~22:21 UT: (38950) 2000 ST295 occults HIP 67903 (8.7 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Apr 21 ~22:21 UT: (38950) 2000 ST295 occults HIP 67903 (8.7 mag)
2026 Apr 17 ~22:36 UT: (16757) Luoxiahong occults HIP 33358 (6.5 mag)
Main-Belt Asteroids Past Event
2026 Apr 17 ~22:36 UT: (16757) Luoxiahong occults HIP 33358 (6.5 mag)
2025 Apr 17 ~21:15 UT: (309) Fraternitas occults UCAC4 383-065030 (14.6 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators Past Event
2025 Apr 17 ~21:15 UT: (309) Fraternitas occults UCAC4 383-065030 (14.6 mag)
2026 Apr 17 ~19:25 UT: (6514) Torahiko occults UCAC4 526-013143 (8.9 mag)
Main-Belt Asteroids Past Event
2026 Apr 17 ~19:25 UT: (6514) Torahiko occults UCAC4 526-013143 (8.9 mag)
2026 Apr 16 ~00:26 UT: (65803) Didymos occults UCAC4 339-098595 (13.6 mag)
Flyby target of a spacecraft Near Earth Asteroids - Call for Observations by the ACROSS Team Past Event
2026 Apr 16 ~00:26 UT: (65803) Didymos occults UCAC4 339-098595 (13.6 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Apr 20 ~20:33 UT: (18529) 1996 WK3 occults TYC 1337-01738-1 (8.0 mag)

2026-04-02

Bright star! Very short max. duration of 0.13 s! Last update: 2026 Apr 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1935-18529-94119-649220-T01738-1

Main-Belt Asteroids Upcoming Occultation

2025 Apr 20 ~21:24 UT: (40966) 1999 TM250 occults TYC 1301-00068-1 (8.9 mag)

2026-04-02

Bright star! Short max. duration of 0.24 s! Last update: 2026 Apr 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1935-40966-77944-649114-T00068-1

Main-Belt Asteroids Upcoming Occultation

2026 Apr 20 ~23:20 UT: (1668) Hanna occults HIP 68301 (9.0 mag)

2026-04-02

Bright star! Last update: 2026 Apr 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1935-1668-197991-647579-H68301

Main-Belt Asteroids Upcoming Occultation

2026 Apr 21 ~22:21 UT: (38950) 2000 ST295 occults HIP 67903 (8.7 mag)

2026-04-02

Bright star! Short max. duration of 0.35 s! Last update: 2026 Apr 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1936-38950-196960-646610-H67903

Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Apr 22 ~01:54 UT: (18655) 1998 FS26 occults UCAC4 418-116215 (13.0 mag)

2026-04-02

Suspected binary asteroid! Short max. duration of only 0.48 s! Last update: 2026 Apr 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1937-18655-268578-647591-U116215 GAIAMOONS link: https://gaiamoons.imcce.fr/occ.php?p=109689

Main-Belt Asteroids

2026 Apr 22 ~23:12 UT: (41060) 1999 VB28 occults UCAC4 561-040778 (8.8 mag)

2026-04-02

Bright star! Very short max. duration of 0.19 s! Last update: 2026 Apr 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1937-41060-103091-649381-U040778

Main-Belt Asteroids

2026 Apr 23 ~01:10 UT: (42304) 2001 VZ34 occults HIP 51065 (6.8 mag)

2026-04-15

Bright star! Short max. duration of 0.82 s! Last update: 2026 Apr 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1938-42304-147877-650459-H51065

Main-Belt Asteroids Special Event

2026 Apr 23 ~20:37 UT: (31067) 1996 TF50 occults J050945.80+230126.7 (6.8 mag)

2026-04-15

Bright star! Annular occultation due to star diameter! Short max. duration of 0.40 s! Last update: 2026 Apr 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1938-31067-73359-649449-J4580267

Main-Belt Asteroids

2026 Apr 23 ~21:40 UT: (35522) 1998 FY62 occults UCAC4 503-044433 (8.4 mag)

2026-04-15

Bright star! Very short max. duration of 0.26 s! Last update: 2026 Apr 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1938-35522-108185-648662-U044433

Main-Belt Asteroids

2026 Apr 26 ~00:31 UT: (2185) Guangdong occults HIP 77203 (7.6 mag)

2026-04-15

Bright star! Last update: 2026 Apr 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1941-2185-223217-646930-H77203

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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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