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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2026 Jan 10 ~19:03 UT: (21776) Krysczynska occults J050945.80+230126.7 (6.8 mag) 2026 Jan 10 ~00:00 UT: (3955) Bruckner occults TYC 2401-00305-1 (7.8 mag) 2026 Jan 07 ~20:24 UT: (266) Aline occults TYC 0730-01071-1 (10.4 mag) 2026 Jan 07 ~00:22 UT: (15024) 1998 TB occults TYC 1419-01260-1 (8.7 mag) 2026 Jan 06 ~21:55 UT: (6644) Jugaku occults HIP 46187 (7.9 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Jan 10 ~19:03 UT: (21776) Krysczynska occults J050945.80+230126.7 (6.8 mag)

2026-01-01
Main-Belt Asteroids Upcoming Occultation

2026 Jan 10 ~00:00 UT: (3955) Bruckner occults TYC 2401-00305-1 (7.8 mag)

2026-01-01
Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation

2026 Jan 07 ~20:24 UT: (266) Aline occults TYC 0730-01071-1 (10.4 mag)

2026-01-01
Main-Belt Asteroids Upcoming Occultation

2026 Jan 07 ~00:22 UT: (15024) 1998 TB occults TYC 1419-01260-1 (8.7 mag)

2026-01-01
Main-Belt Asteroids Upcoming Occultation

2026 Jan 06 ~21:55 UT: (6644) Jugaku occults HIP 46187 (7.9 mag)

2025-12-30
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  • Past Events
2026 Jan 19 ~20:47 UT: (19126) Ottohahn occults UCAC4 454-043362 (13.5 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Jan 19 ~20:47 UT: (19126) Ottohahn occults UCAC4 454-043362 (13.5 mag)
2026 Jan 19 ~20:36 UT: (9220) Yohisdayama occults HIP 30049 (6.8 mag)
Main-Belt Asteroids
2026 Jan 19 ~20:36 UT: (9220) Yohisdayama occults HIP 30049 (6.8 mag)
2026 Jan 19 ~17:26 UT: (4807) Noboru occults HIP 16813 (7.4 mag)
Main-Belt Asteroids
2026 Jan 19 ~17:26 UT: (4807) Noboru occults HIP 16813 (7.4 mag)
2026 Jan 19 ~00:55 UT: (1036) Ganymed occults UCAC4 349-056247 (14.8 mag)
Amor Asteroids Near Earth Asteroids - Call for Observations by the ACROSS Team
2026 Jan 19 ~00:55 UT: (1036) Ganymed occults UCAC4 349-056247 (14.8 mag)
2026 Jan 19 ~20:47 UT: (19126) Ottohahn occults UCAC4 454-043362 (13.5 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Jan 19 ~20:47 UT: (19126) Ottohahn occults UCAC4 454-043362 (13.5 mag)
2026 Jan 07 ~00:22 UT: (15024) 1998 TB occults TYC 1419-01260-1 (8.7 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Jan 07 ~00:22 UT: (15024) 1998 TB occults TYC 1419-01260-1 (8.7 mag)
2026 Jan 07 ~20:24 UT: (266) Aline occults TYC 0730-01071-1 (10.4 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation
2026 Jan 07 ~20:24 UT: (266) Aline occults TYC 0730-01071-1 (10.4 mag)
2026 Jan 10 ~20:49 UT: (13199) 1997 EW25 occults HIP 3574 (7.6 mag)
Main-Belt Asteroids
2026 Jan 10 ~20:49 UT: (13199) 1997 EW25 occults HIP 3574 (7.6 mag)
2026 Jan 05 ~20:53 UT: (834) Burnhamia occults UCAC4 534-041320 (14.0 mag)
Main-Belt Asteroids Past Event Suspected binary asteroids - GaiaMoons project
2026 Jan 05 ~20:53 UT: (834) Burnhamia occults UCAC4 534-041320 (14.0 mag)
2026 Jan 05 ~20:13 UT: (3206) Wuhan occults UCAC4 594-016032 (13.9 mag)
Main-Belt Asteroids Past Event Suspected binary asteroids - GaiaMoons project
2026 Jan 05 ~20:13 UT: (3206) Wuhan occults UCAC4 594-016032 (13.9 mag)
2026 Jan 04 ~23:33 UT: (265) Anna occults UCAC4 709-046886 (12.2 mag)
Main-Belt Asteroids Past Event Suspected binary asteroids - GaiaMoons project
2026 Jan 04 ~23:33 UT: (265) Anna occults UCAC4 709-046886 (12.2 mag)
2026 Jan 04 ~22:40 UT: (617) Patroclus and Menoetius occult UCAC4 541-004490 (11.9 mag)
Flyby target of a spacecraft Jupiter Trojans - predicted by the ERC Lucky Star project Past Event Special Event
2026 Jan 04 ~22:40 UT: (617) Patroclus and Menoetius occult UCAC4 541-004490 (11.9 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Jan 06 ~21:55 UT: (6644) Jugaku occults HIP 46187 (7.9 mag)

2025-12-30

Bright star! Last update: 2025 Dec 30, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1831-6644-133486-649425-H46187

Main-Belt Asteroids Upcoming Occultation

2026 Jan 07 ~00:22 UT: (15024) 1998 TB occults TYC 1419-01260-1 (8.7 mag)

2026-01-01

Bright star! Possible binary asteroid! Last update: 2026 Jan 01, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1832-15024-144051-648936-T01260-1

Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation

2026 Jan 07 ~20:24 UT: (266) Aline occults TYC 0730-01071-1 (10.4 mag)

2026-01-01

Slow-rotating asteroid! Last update: 2025 Dec 27, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1832-266-86979-648576-T01071-1

Main-Belt Asteroids Upcoming Occultation

2026 Jan 10 ~00:00 UT: (3955) Bruckner occults TYC 2401-00305-1 (7.8 mag)

2026-01-01

Bright star! Last update: 2026 Jan 01, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1835-3955-74397-650340-T00305-1

Main-Belt Asteroids Upcoming Occultation

2026 Jan 10 ~19:03 UT: (21776) Krysczynska occults J050945.80+230126.7 (6.8 mag)

2026-01-01

Bright star! Annular occultation due to large star diameter! Last update: 2026 Jan 01, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1835-21776-73364-649449-J4580267

Main-Belt Asteroids

2026 Jan 10 ~20:15 UT: (15346) Bonifatius occults HIP 7014 (8.1 mag)

2026-01-01

Bright star! Very short max. duration of only 0.19 s! Last update: 2026 Jan 01, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1835-15346-21606-648705-H7014

Main-Belt Asteroids

2026 Jan 10 ~20:49 UT: (13199) 1997 EW25 occults HIP 3574 (7.6 mag)

2026-01-01

Bright star! Very short max. duration of only 0.15 s! Last update: 2026 Jan 01, Not in Occult Watcher Cloud

Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project

2026 Jan 10 ~23:07 UT: (340) Eduarda occults UCAC4 553-046906 (13.0 mag)

2026-01-01

Suspected binary asteroid! Faint star! Last update: 2026 Jan 01, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1835-340-139330-649278-U046906 GAIAMOONS link: https://gaiamoons.imcce.fr/occ.php?p=98854

Main-Belt Asteroids

2026 Jan 11 ~00:21 UT: (17289) 2037 P-L occults TYC 3365-00290-1 (8.3 mag)

2026-01-05

Bright star! Last update: 2026 Jan 05, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1836-17289-82838-651007-T00290-1

Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project

2026 Jan 11 ~03:05 UT: (4221) Picasso occults UCAC4 402-051388 (12.2 mag)

2026-01-05

Suspected binary asteroid! Last update: 2026 Jan 05, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1836-4221-161416-647377-U051388 GAIAMOONS link: https://gaiamoons.imcce.fr/occ.php?p=91134

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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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