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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2026 Jul 12 ~22:51 UT: (476) Hedwig occults UCAC4 442-126913 (14.0 mag) 2026 Jul 11 ~01:29 UT: (11160) Wechsler occults HIP 1943 (8.1 mag) 2026 Jul 10 ~21:16 UT: (18749) Ayyubguliev occults UCAC4 357-167816 (9.0 mag) 2026 Jul 10 ~02:46 UT: (4209) Briggs occults UCAC4 619-007737 (14.0 mag) 2026 Jul 09 ~23:13 UT: (5329) Decaro occults UCAC4 405-077190 (13.6 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Jul 12 ~22:51 UT: (476) Hedwig occults UCAC4 442-126913 (14.0 mag)

2026-07-02
Main-Belt Asteroids Upcoming Occultation

2026 Jul 11 ~01:29 UT: (11160) Wechsler occults HIP 1943 (8.1 mag)

2026-07-02
Main-Belt Asteroids Upcoming Occultation

2026 Jul 10 ~21:16 UT: (18749) Ayyubguliev occults UCAC4 357-167816 (9.0 mag)

2026-06-27
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Jul 10 ~02:46 UT: (4209) Briggs occults UCAC4 619-007737 (14.0 mag)

2026-06-27
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Jul 09 ~23:13 UT: (5329) Decaro occults UCAC4 405-077190 (13.6 mag)

2026-06-27
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  • Past Events
2026 Jul 31 ~21:42 UT: (247382) 2001 YP55 occults UCAC4 421-134753 (13.2 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Jul 31 ~21:42 UT: (247382) 2001 YP55 occults UCAC4 421-134753 (13.2 mag)
2026 Jul 30 ~02:22 UT: (47162) Chicomendez occults HIP 16737 (6.6 mag)
Main-Belt Asteroids
2026 Jul 30 ~02:22 UT: (47162) Chicomendez occults HIP 16737 (6.6 mag)
2026 Jul 29 ~22:12 UT: (23265) von Wurden occults HIP 72417 (8.5 mag)
Main-Belt Asteroids
2026 Jul 29 ~22:12 UT: (23265) von Wurden occults HIP 72417 (8.5 mag)
2026 Jul 27 ~22:49 UT: (16371) 1981 DQ3 occults UCAC4 383-162947 (12.1 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Jul 27 ~22:49 UT: (16371) 1981 DQ3 occults UCAC4 383-162947 (12.1 mag)
2026 Jul 31 ~21:42 UT: (247382) 2001 YP55 occults UCAC4 421-134753 (13.2 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Jul 31 ~21:42 UT: (247382) 2001 YP55 occults UCAC4 421-134753 (13.2 mag)
2026 Jul 10 ~02:46 UT: (4209) Briggs occults UCAC4 619-007737 (14.0 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation
2026 Jul 10 ~02:46 UT: (4209) Briggs occults UCAC4 619-007737 (14.0 mag)
2026 Jul 10 ~21:16 UT: (18749) Ayyubguliev occults UCAC4 357-167816 (9.0 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Jul 10 ~21:16 UT: (18749) Ayyubguliev occults UCAC4 357-167816 (9.0 mag)
2026 Jul 11 ~01:29 UT: (11160) Wechsler occults HIP 1943 (8.1 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Jul 11 ~01:29 UT: (11160) Wechsler occults HIP 1943 (8.1 mag)
2026 Jul 08 ~20:21 UT: (4769) Castalia occults TYC 7302-02215-1 (6.9 mag)
Near Earth Asteroids - Call for Observations by the ACROSS Team Past Event Special Event
2026 Jul 08 ~20:21 UT: (4769) Castalia occults TYC 7302-02215-1 (6.9 mag)
2026 Jul 07 ~03:27 UT: (16784) 1996 YD2 occults HIP 108346 (7.5 mag)
Main-Belt Asteroids Past Event
2026 Jul 07 ~03:27 UT: (16784) 1996 YD2 occults HIP 108346 (7.5 mag)
2026 Jul 07 ~01:20 UT: (38180) 1999 JR123 occults TYC 6274-01131-1 (8.9 mag)
Main-Belt Asteroids Past Event
2026 Jul 07 ~01:20 UT: (38180) 1999 JR123 occults TYC 6274-01131-1 (8.9 mag)
2026 Jul 04 ~01:44 UT: (21945) Kleshchonok occults UCAC4 358-202080 (6.7 mag)
Main-Belt Asteroids Past Event
2026 Jul 04 ~01:44 UT: (21945) Kleshchonok occults UCAC4 358-202080 (6.7 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Jul 09 ~23:13 UT: (5329) Decaro occults UCAC4 405-077190 (13.6 mag)

2026-06-27

Supected binary asteroid! Faint star! Short max. duration of only 0.98 s! Last update: 2026 Jun 27, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2015-5329-257866-647434-U077190 GAIAMOONS: https://gaiamoons.imcce.fr/occ.php?p=93979

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

2026 Jul 10 ~02:46 UT: (4209) Briggs occults UCAC4 619-007737 (14.0 mag)

2026-06-27

Supected binary asteroid! Faint star! Short max. duration of only 0.88 s! Last update: 2026 Jun 27, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2016-4209-39051-650119-U007737 GAIAMOONS: https://gaiamoons.imcce.fr/occ.php?p=98644

Main-Belt Asteroids Upcoming Occultation

2026 Jul 10 ~21:16 UT: (18749) Ayyubguliev occults UCAC4 357-167816 (9.0 mag)

2026-06-27

Bright star! Short max. duration of only 0.27 s! Last update: 2026 Jun 27, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2016-18749-267537-646825-U167816

Main-Belt Asteroids Upcoming Occultation

2026 Jul 11 ~01:29 UT: (11160) Wechsler occults HIP 1943 (8.1 mag)

2026-07-02

Bright star! Short max. duration of only 0.47 s! Last update: 2026 Jul 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2017-11160-6111-648221-H1943

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

2026 Jul 12 ~22:51 UT: (476) Hedwig occults UCAC4 442-126913 (14.0 mag)

2026-07-02

Binary asteroid! Faint star! Long max. duration of only 20.4 s! Faint mag drop of only 0.26 mag! Large RUWE value of 3.2! Raphaël Lallemand (GAIAMOONS) wrote on PLANOCCULT on…

Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project

2026 Jul 13 ~20:58 UT: (1194) Aletta occults UCAC4 325-186295 (11.8 mag)

2026-07-02

Supected binary asteroid! Raphaël Lallemand (GAIAMOONS) wrote on PLANOCCULT on Jun 26: The main body is 42 km wide, with a satellite between 4 and 40 km wide. The minimum…

Main-Belt Asteroids

2026 Jul 14 ~02:52 UT: (8296) Miyama occults HIP 8700 (7.9 mag)

2026-07-02

Bright star! Short max. duration of only 0.37 s! Last update: 2026 Jul 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2020-8296-26716-649081-H8700

Near Earth Asteroids - Call for Observations by the ACROSS Team Special Event

2026 Jul 14 ~23:17 UT: (3361) Orpheus occults HIP 89851 (4.8 mag)

2026-07-02

Very bright star! Apollo asteroid! Potential hazardous asteroid (PHA)! Annular occultation! (apparent star diameter: 2.6 mas, asteroid: 0.8 mas) Short max. duration of only 0.18 s! Very faint mag drop!…

Main-Belt Asteroids

2026 Jul 17 ~00:29 UT: (31430) 1999 BX8 occults TYC 6304-01122-1 (8.6 mag)

2026-07-02

Bright star! Short max. duration of only 0.25 s! Last update: 2026 Jul 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2023-31430-273073-646824-T01122-1

Main-Belt Asteroids

2026 Jul 17 ~20:53 UT: (28719) Sahoolahan occults HIP 74413 (7.0 mag)

2026-07-02

Bright star! Short max. duration of only 0.66 s! Last update: 2026 Jul 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2023-28719-215343-647006-H74413

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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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