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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2025 Dec 20 ~22:05 UT: (10728) Vladimirfock occults HIP 37278 (7.2 mag) 2025 Dec 19 ~22:04 UT: (838) Seraphina occults UCAC4 539-007964 (15.0 mag) 2025 Dec 19 ~22:46 UT: (21453) Victorlevine occults HIP 7505 (5.3 mag) 2025 Dec 19 ~19:19 UT: (115321) 2003 SK219 occults UCAC4 433-002898 (13.2 mag) 2025 Dec 18 ~01:06 UT: (146) Lucina occults UCAC4 587-035293 (12.3 mag)
Main-Belt Asteroids Upcoming Occultation

2025 Dec 20 ~22:05 UT: (10728) Vladimirfock occults HIP 37278 (7.2 mag)

2025-12-14
Main-Belt Asteroids Observation Campaign for Slow Rotators Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2025 Dec 19 ~22:04 UT: (838) Seraphina occults UCAC4 539-007964 (15.0 mag)

2025-12-14
Main-Belt Asteroids Upcoming Occultation

2025 Dec 19 ~22:46 UT: (21453) Victorlevine occults HIP 7505 (5.3 mag)

2025-12-14
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2025 Dec 19 ~19:19 UT: (115321) 2003 SK219 occults UCAC4 433-002898 (13.2 mag)

2025-12-14
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2025 Dec 18 ~01:06 UT: (146) Lucina occults UCAC4 587-035293 (12.3 mag)

2025-12-14
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  • Past Events
2025 Dec 20 ~22:18 UT: (23013) Carolsmyth occults HIP 17588 (6.4 mag)
Main-Belt Asteroids
2025 Dec 20 ~22:18 UT: (23013) Carolsmyth occults HIP 17588 (6.4 mag)
2025 Dec 20 ~22:17 UT: (22649) Paulineloader occults TYC 2393-00984-1 (8.6 mag)
Main-Belt Asteroids
2025 Dec 20 ~22:17 UT: (22649) Paulineloader occults TYC 2393-00984-1 (8.6 mag)
2025 Dec 20 ~22:05 UT: (10728) Vladimirfock occults HIP 37278 (7.2 mag)
Main-Belt Asteroids Upcoming Occultation
2025 Dec 20 ~22:05 UT: (10728) Vladimirfock occults HIP 37278 (7.2 mag)
2025 Dec 19 ~22:04 UT: (838) Seraphina occults UCAC4 539-007964 (15.0 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators Suspected binary asteroids - GaiaMoons project Upcoming Occultation
2025 Dec 19 ~22:04 UT: (838) Seraphina occults UCAC4 539-007964 (15.0 mag)
2025 Dec 20 ~22:18 UT: (23013) Carolsmyth occults HIP 17588 (6.4 mag)
Main-Belt Asteroids
2025 Dec 20 ~22:18 UT: (23013) Carolsmyth occults HIP 17588 (6.4 mag)
2025 Dec 18 ~01:06 UT: (146) Lucina occults UCAC4 587-035293 (12.3 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation
2025 Dec 18 ~01:06 UT: (146) Lucina occults UCAC4 587-035293 (12.3 mag)
2025 Dec 19 ~22:46 UT: (21453) Victorlevine occults HIP 7505 (5.3 mag)
Main-Belt Asteroids Upcoming Occultation
2025 Dec 19 ~22:46 UT: (21453) Victorlevine occults HIP 7505 (5.3 mag)
2025 Dec 19 ~19:19 UT: (115321) 2003 SK219 occults UCAC4 433-002898 (13.2 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation
2025 Dec 19 ~19:19 UT: (115321) 2003 SK219 occults UCAC4 433-002898 (13.2 mag)
2025 Dec 16 ~03:05 UT: (458) Hercynia occults UCAC4 506-044902 (13.2 mag)
Main-Belt Asteroids Past Event Suspected binary asteroids - GaiaMoons project
2025 Dec 16 ~03:05 UT: (458) Hercynia occults UCAC4 506-044902 (13.2 mag)
2025 Dec 15 ~22:23 UT: (24332) Shaunalinn occults HIP 19641 (5.8 mag)
Main-Belt Asteroids Past Event
2025 Dec 15 ~22:23 UT: (24332) Shaunalinn occults HIP 19641 (5.8 mag)
2025 Dec 15 ~17:06 UT: (200) Dynamene occults UCAC4 607-036518 (13.2 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators Past Event
2025 Dec 15 ~17:06 UT: (200) Dynamene occults UCAC4 607-036518 (13.2 mag)
2025 Dec 13 ~19:15 UT: (20822) Lintingnien occults HIP 39839 (6.8 mag)
Main-Belt Asteroids Past Event
2025 Dec 13 ~19:15 UT: (20822) Lintingnien occults HIP 39839 (6.8 mag)
News

Concerns Predictions from 2025 October 01 Onwards

2025-09-29

From 2025 October 1, due to the high number of events during the winter months, this website will only present occultations by asteroids from observation campaigns, by satellites of planets…

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

2025 Dec 18 ~01:06 UT: (146) Lucina occults UCAC4 587-035293 (12.3 mag)

2025-12-14

Suspected binary asteroid! Faint mag drop of only 0.8 mag! Raphaël Lallemand (GAIAMOONS) wrote on Dec 8 on PLANOCCULT: The main body is 131.0 km wide; the potential satellite is…

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

2025 Dec 19 ~19:19 UT: (115321) 2003 SK219 occults UCAC4 433-002898 (13.2 mag)

2025-12-14

Suspected binary asteroid! Faint star! Short max. duration of only 0.82 s! Last update: 2025 Dec 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1813-115321-33260-647782-U002898 GAIAMOONS link: https://gaiamoons.imcce.fr/occ.php?p=61058

Main-Belt Asteroids Observation Campaign for Slow Rotators Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2025 Dec 19 ~22:04 UT: (838) Seraphina occults UCAC4 539-007964 (15.0 mag)

2025-12-14

Slow-rotating asteroid! Suspected binary asteroid! Very faint star! Faint mag drop of only 0.43 mag! Last update: 2025 Dec 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1813-838-57633-649111-U007964

Main-Belt Asteroids Upcoming Occultation

2025 Dec 19 ~22:46 UT: (21453) Victorlevine occults HIP 7505 (5.3 mag)

2025-12-14

Bright star! Annular occultation due to large star diameter! Last update: 2025 Dec 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1813-21453-23115-648500-H7505

Main-Belt Asteroids Upcoming Occultation

2025 Dec 20 ~22:05 UT: (10728) Vladimirfock occults HIP 37278 (7.2 mag)

2025-12-14

Bright star! Short max. duration of only 0.31 s! Last update: 2025 Dec 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1814-10728-108585-649262-H37278

Main-Belt Asteroids

2025 Dec 20 ~22:17 UT: (22649) Paulineloader occults TYC 2393-00984-1 (8.6 mag)

2025-12-14

Bright star! Short max. duration of only 0.47 s! Last update: 2025 Dec 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1814-22649-73836-650059-T00984-1

Main-Belt Asteroids

2025 Dec 20 ~22:18 UT: (23013) Carolsmyth occults HIP 17588 (6.4 mag)

2025-12-14

Bright star! Short max. duration of only 0.33 s! Last update: 2025 Dec 14, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1814-23013-53633-649546-H17588

IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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