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IOTA/ES – Call for Observations

IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2026 Feb 06 ~04:04 UT: (9185) 1991 PX17 occults HIP 77435 (6.7 mag) 2026 Feb 06 ~01:54 UT: (468861) 2013 LU28 occults UCAC4 553-021276 (14.7 mag) 2026 Feb 04 ~05:01 UT: (1778) Alfven occults HIP 86819 (6.7 mag) 2026 Feb 03 ~21:54 UT: (105449) 2000 QA191 occults UCAC4 500-012637 (12.6 mag) 2026 Feb 03 ~20:19 UT: (22676) 1998 QS41 occults HIP 2988 (7.4 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Feb 06 ~04:04 UT: (9185) 1991 PX17 occults HIP 77435 (6.7 mag)

2026-01-11
Trans-Neptunian Objects, Cubewanos and Centaurs - Predicted by the ERC Lucky Star project Upcoming Occultation

2026 Feb 06 ~01:54 UT: (468861) 2013 LU28 occults UCAC4 553-021276 (14.7 mag)

2026-01-11
Main-Belt Asteroids Upcoming Occultation

2026 Feb 04 ~05:01 UT: (1778) Alfven occults HIP 86819 (6.7 mag)

2026-01-11
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Feb 03 ~21:54 UT: (105449) 2000 QA191 occults UCAC4 500-012637 (12.6 mag)

2026-01-11
Main-Belt Asteroids Upcoming Occultation

2026 Feb 03 ~20:19 UT: (22676) 1998 QS41 occults HIP 2988 (7.4 mag)

2026-01-11
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  • Past Events
2026 Feb 20 ~21:56 UT: (54598) Bienor occults UCAC4 629-041023 (15.2 mag)
Trans-Neptunian Objects, Cubewanos and Centaurs - Predicted by the ERC Lucky Star project
2026 Feb 20 ~21:56 UT: (54598) Bienor occults UCAC4 629-041023 (15.2 mag)
2026 Feb 20 ~18:00 UT: (903) Nealley occults UCAC4 506-049100 (15.0 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators
2026 Feb 20 ~18:00 UT: (903) Nealley occults UCAC4 506-049100 (15.0 mag)
2026 Feb 19 ~18:48 UT: (4890) Shikanosima occults TYC 1882-01417-1 (8.4 mag)
Main-Belt Asteroids
2026 Feb 19 ~18:48 UT: (4890) Shikanosima occults TYC 1882-01417-1 (8.4 mag)
2026 Feb 18 ~20:26 UT: (12914) 1998 SJ141 occults UCAC4 652-031970 (13.0 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Feb 18 ~20:26 UT: (12914) 1998 SJ141 occults UCAC4 652-031970 (13.0 mag)
2026 Feb 20 ~21:56 UT: (54598) Bienor occults UCAC4 629-041023 (15.2 mag)
Trans-Neptunian Objects, Cubewanos and Centaurs - Predicted by the ERC Lucky Star project
2026 Feb 20 ~21:56 UT: (54598) Bienor occults UCAC4 629-041023 (15.2 mag)
2026 Feb 03 ~21:54 UT: (105449) 2000 QA191 occults UCAC4 500-012637 (12.6 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation
2026 Feb 03 ~21:54 UT: (105449) 2000 QA191 occults UCAC4 500-012637 (12.6 mag)
2026 Feb 04 ~05:01 UT: (1778) Alfven occults HIP 86819 (6.7 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Feb 04 ~05:01 UT: (1778) Alfven occults HIP 86819 (6.7 mag)
2026 Feb 06 ~01:54 UT: (468861) 2013 LU28 occults UCAC4 553-021276 (14.7 mag)
Trans-Neptunian Objects, Cubewanos and Centaurs - Predicted by the ERC Lucky Star project Upcoming Occultation
2026 Feb 06 ~01:54 UT: (468861) 2013 LU28 occults UCAC4 553-021276 (14.7 mag)
2026 Feb 02 ~23:37 UT: (14488) 1994 TF15 occults UCAC4 516-051382 (8.7 mag)
Main-Belt Asteroids Past Event
2026 Feb 02 ~23:37 UT: (14488) 1994 TF15 occults UCAC4 516-051382 (8.7 mag)
2026 Feb 02 ~19:53 UT: (5960) Wakkanai occults HIP 33808 (7.4 mag)
Main-Belt Asteroids Past Event
2026 Feb 02 ~19:53 UT: (5960) Wakkanai occults HIP 33808 (7.4 mag)
2026 Feb 01 ~00:23 UT: (8995) Rachelstevenson occults TYC 2369-01598-1 (8.5 mag)
Main-Belt Asteroids Past Event
2026 Feb 01 ~00:23 UT: (8995) Rachelstevenson occults TYC 2369-01598-1 (8.5 mag)
2026 Jan 31 ~17:21 UT: (5526) Kenzo occults HIP 5995 (8.9 mag)
Main-Belt Asteroids Past Event
2026 Jan 31 ~17:21 UT: (5526) Kenzo occults HIP 5995 (8.9 mag)
Main-Belt Asteroids

2026 Feb 08 ~04:52 UT: (8944) Ortigara occults HIP 86778 (8.1 mag)

2026-01-12

Bright star! Short max. duration of only 0.24 s! Last update: 2026 Jan 12, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1864-8944-251056-646569-H86778

Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project

2026 Feb 10 ~01:18 UT: (519 ) Sylvania occults UCAC4 631-043386 (12.9 mag)

2026-01-12

Suspected binary asteroid! Last update: 2026 Jan 12, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1866-519-113215-650267-U043386 GAIAMOONS link: https://gaiamoons.imcce.fr/occ.php?p=101339

Main-Belt Asteroids

2026 Feb 10 ~01:36 UT: (9332) 1990 SB1 occults HIP 71943 (7.6 mag)

2026-01-12

Bright star! Suspected binary asteroid! Short max. duration of only 0.38 s! Last update: 2026 Jan 12, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1866-9332-208377-646454-H71943

Flyby target of a spacecraft Jupiter Trojans - predicted by the ERC Lucky Star project Special Event

2026 Feb 10 ~02:23 UT: (21900) Orus occults TYC 5510-00557-1 (11.9 mag)

2026-01-12

Jupiter Trojan! Target of NASA’s Lucy mission! Last update: 2026 Jan 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1866-21900-165614-647429-T00557-1 Prediction of the Lucky Star project (2025 Aug 21): https://lesia.obspm.fr/lucky-star/occ.php?p=157035 Prediction by SwRI (2023…

Main-Belt Asteroids

2026 Feb 10 ~23:42 UT: (19184) 1991 TB6 occults HIP 33409 (7.3 mag)

2026-01-12

Bright star! Last update: 2026 Jan 12, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1866-19184-98684-650805-H33409

Main-Belt Asteroids

2026 Feb 11 ~03:34 UT: (16877) 1998 BW6 occults TYC 6811-02647-1 (9.0 mag)

2026-01-14

Bright star! Short max. duration of only 0.32 s! Last update: 2026 Jan 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1867-16877-242583-646524-T02647-1

Main-Belt Asteroids

2026 Feb 11 ~03:45 UT: (19072) 1222 T-3 occults UCAC4 329-074079 (8.0 mag)

2026-01-14

Bright star! Short max. duration of only 0.70 s! Faint mag drop of only 0.7 mag! Last update: 2026 Jan 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1867-19072-217056-646469-U074079

Main-Belt Asteroids

2026 Feb 11 ~22:36 UT: (12987) Racalmuto occults HIP 36152 (6.4 mag)

2026-01-14

Bright star! Short max. duration of only 0.81 s! Last update: 2026 Jan 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1867-12987-105654-649350-H36152

Main-Belt Asteroids

2026 Feb 14 ~22:12 UT: (16242) Licato occults J084059.40-004147.2 (8.2 mag)

2026-01-14

Bright star! Last update: 2026 Jan 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1870-16242-123076-647950-J5940472

Main-Belt Asteroids

2026 Feb 16 ~18:51 UT: (22446) Philwhitney occults TYC 1918-02054-1 (8.3 mag)

2026-01-14

Bright star! Short max. duration of only 0.55 s! Last update: 2026 Jan 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1872-22446-106397-649680-T02054-1

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IOTA/ES – Call for Observations

IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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