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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2026 Sep 27 ~02:54 UT: (31402) Negishi occults J065345.82+344631.8 (7.9 mag) 2026 Sep 25 ~00:14 UT: (2207) Antenor occults UCAC4 533-021773 (14.3 mag) 2026 Sep 25 ~00:02 UT: (43225) 2000 AW165 occults UCAC4 379-164884 (8.7 mag) 2026 Sep 24 ~00:36 UT: (24628) 1981 EG3 occults HIP 6554 (8.0 mag) 2026 Sep 23 ~22:26 UT: (28927) 2000 RA6 occults HIP 18531 (8.6 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Sep 27 ~02:54 UT: (31402) Negishi occults J065345.82+344631.8 (7.9 mag)

2026-09-16
Jupiter Trojans - predicted by the ERC Lucky Star project Upcoming Occultation

2026 Sep 25 ~00:14 UT: (2207) Antenor occults UCAC4 533-021773 (14.3 mag)

2026-09-16
Main-Belt Asteroids Upcoming Occultation

2026 Sep 25 ~00:02 UT: (43225) 2000 AW165 occults UCAC4 379-164884 (8.7 mag)

2026-09-16
Main-Belt Asteroids Upcoming Occultation

2026 Sep 24 ~00:36 UT: (24628) 1981 EG3 occults HIP 6554 (8.0 mag)

2026-09-16
Main-Belt Asteroids Upcoming Occultation

2026 Sep 23 ~22:26 UT: (28927) 2000 RA6 occults HIP 18531 (8.6 mag)

2026-09-16
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  • Past Events
2026 Sep 30 ~23:04 UT: (21288) 1996 VW occults TYC 5230-01352-1 (7.0 mag)
Main-Belt Asteroids
2026 Sep 30 ~23:04 UT: (21288) 1996 VW occults TYC 5230-01352-1 (7.0 mag)
2026 Sep 29 ~03:34 UT: (2404) Antarctica occults HIP 41727 (8.2 mag)
Main-Belt Asteroids
2026 Sep 29 ~03:34 UT: (2404) Antarctica occults HIP 41727 (8.2 mag)
2026 Sep 27 ~02:58 UT: (2721) Vsekhsvyatskij occults HIP 23883 (5.7 mag)
Main-Belt Asteroids
2026 Sep 27 ~02:58 UT: (2721) Vsekhsvyatskij occults HIP 23883 (5.7 mag)
2026 Sep 27 ~02:54 UT: (31402) Negishi occults J065345.82+344631.8 (7.9 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Sep 27 ~02:54 UT: (31402) Negishi occults J065345.82+344631.8 (7.9 mag)
2026 Sep 30 ~23:04 UT: (21288) 1996 VW occults TYC 5230-01352-1 (7.0 mag)
Main-Belt Asteroids
2026 Sep 30 ~23:04 UT: (21288) 1996 VW occults TYC 5230-01352-1 (7.0 mag)
2026 Sep 24 ~00:36 UT: (24628) 1981 EG3 occults HIP 6554 (8.0 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Sep 24 ~00:36 UT: (24628) 1981 EG3 occults HIP 6554 (8.0 mag)
2026 Sep 25 ~00:14 UT: (2207) Antenor occults UCAC4 533-021773 (14.3 mag)
Jupiter Trojans - predicted by the ERC Lucky Star project Upcoming Occultation
2026 Sep 25 ~00:14 UT: (2207) Antenor occults UCAC4 533-021773 (14.3 mag)
2026 Sep 25 ~00:02 UT: (43225) 2000 AW165 occults UCAC4 379-164884 (8.7 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Sep 25 ~00:02 UT: (43225) 2000 AW165 occults UCAC4 379-164884 (8.7 mag)
2026 Sep 22 ~19:49 UT: Cleoselene, Satellite of (216) Kleopatra occults UCAC4 399-071546 (14.0 mag)
Asteroid's Satellites - predicted with data from Miriade (LTE / IMCCE) Past Event
2026 Sep 22 ~19:49 UT: Cleoselene, Satellite of (216) Kleopatra occults UCAC4 399-071546 (14.0 mag)
2026 Sep 22 ~19:49 UT: Alexhelios, Satellite of (216) Kleopatra occults UCAC4 399-071546 (14.0 mag)
Asteroid's Satellites - predicted with data from Miriade (LTE / IMCCE) Past Event
2026 Sep 22 ~19:49 UT: Alexhelios, Satellite of (216) Kleopatra occults UCAC4 399-071546 (14.0 mag)
2026 Sep 22 ~19:49 UT: (216) Kleopatra occults UCAC4 399-071546 (14.0 mag)
Main-Belt Asteroids Past Event
2026 Sep 22 ~19:49 UT: (216) Kleopatra occults UCAC4 399-071546 (14.0 mag)
2026 Sep 22 ~18:45 UT: (16393) 1981 QS occults UCAC4 354-111702 (12.9 mag)
Main-Belt Asteroids Past Event Suspected binary asteroids - GaiaMoons project
2026 Sep 22 ~18:45 UT: (16393) 1981 QS occults UCAC4 354-111702 (12.9 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Sep 23 ~22:26 UT: (28927) 2000 RA6 occults HIP 18531 (8.6 mag)

2026-09-16

Bright star! Short max. duration of only 0.72 s! Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2091-28927-56408-649445-H18531

Main-Belt Asteroids Upcoming Occultation

2026 Sep 24 ~00:36 UT: (24628) 1981 EG3 occults HIP 6554 (8.0 mag)

2026-09-16

Bright star! Short max. duration of only 0.66 s! Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2092-24628-77141-403199-H6554

Main-Belt Asteroids Upcoming Occultation

2026 Sep 25 ~00:02 UT: (43225) 2000 AW165 occults UCAC4 379-164884 (8.7 mag)

2026-09-16

Bright star! Short max. duration of only 0.90 s! Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2093-43225-316952-647109-U164884

Jupiter Trojans - predicted by the ERC Lucky Star project Upcoming Occultation

2026 Sep 25 ~00:14 UT: (2207) Antenor occults UCAC4 533-021773 (14.3 mag)

2026-09-16

Jupiter Trojan! Very faint star! Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2093-2207-324832-383602-U021773 Prediction of the Lucky Star project (2025 Aug 21): https://lesia.obspm.fr/lucky-star/occ.php?p=155104

Main-Belt Asteroids Upcoming Occultation

2026 Sep 27 ~02:54 UT: (31402) Negishi occults J065345.82+344631.8 (7.9 mag)

2026-09-16

Bright star! Short max. duration of only 0.92 s! Expect fades >0.3 s! Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2095-31402-97910-650183-J4582318

Main-Belt Asteroids

2026 Sep 27 ~02:58 UT: (2721) Vsekhsvyatskij occults HIP 23883 (5.7 mag)

2026-09-16

Very bright star! HIP 23883 = 105 Tau Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2095-2721-72934-649366-H23883

Main-Belt Asteroids

2026 Sep 29 ~03:34 UT: (2404) Antarctica occults HIP 41727 (8.2 mag)

2026-09-16

Bright star! Short max. duration of only 0.81 s! Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2097-2404-120649-649185-H41727

Main-Belt Asteroids

2026 Sep 30 ~23:04 UT: (21288) 1996 VW occults TYC 5230-01352-1 (7.0 mag)

2026-09-16

Bright star! Short max. duration of only 0.81 s! Last update: 2026 Sep 16, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2098-21288-313299-647607-T01352-1

IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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