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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 09 ~23:13 UT: (5329) Decaro occults UCAC4 405-077190 (13.6 mag) 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) 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 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
Near Earth Asteroids - Call for Observations by the ACROSS Team Special Event Upcoming Occultation

2026 Jul 08 ~20:21 UT: (4769) Castalia occults TYC 7302-02215-1 (6.9 mag)

2026-06-27
Main-Belt Asteroids Upcoming Occultation

2026 Jul 07 ~03:27 UT: (16784) 1996 YD2 occults HIP 108346 (7.5 mag)

2026-06-27
Main-Belt Asteroids Upcoming Occultation

2026 Jul 07 ~01:20 UT: (38180) 1999 JR123 occults TYC 6274-01131-1 (8.9 mag)

2026-06-27
Main-Belt Asteroids Upcoming Occultation

2026 Jul 04 ~01:44 UT: (21945) Kleshchonok occults UCAC4 358-202080 (6.7 mag)

2026-06-27
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  • Past Events
2026 Jul 18 ~22:42 UT: (33529) Henden occults HIP 106146 (8.4 mag)
Main-Belt Asteroids
2026 Jul 18 ~22:42 UT: (33529) Henden occults HIP 106146 (8.4 mag)
2026 Jul 17 ~20:53 UT: (28719) Sahoolahan occults HIP 74413 (7.0 mag)
Main-Belt Asteroids
2026 Jul 17 ~20:53 UT: (28719) Sahoolahan occults HIP 74413 (7.0 mag)
2026 Jul 17 ~00:29 UT: (31430) 1999 BX8 occults TYC 6304-01122-1 (8.6 mag)
Main-Belt Asteroids
2026 Jul 17 ~00:29 UT: (31430) 1999 BX8 occults TYC 6304-01122-1 (8.6 mag)
2026 Jul 14 ~23:17 UT: (3361) Orpheus occults HIP 89851 (4.8 mag)
Main-Belt Asteroids
2026 Jul 14 ~23:17 UT: (3361) Orpheus occults HIP 89851 (4.8 mag)
2026 Jul 18 ~22:42 UT: (33529) Henden occults HIP 106146 (8.4 mag)
Main-Belt Asteroids
2026 Jul 18 ~22:42 UT: (33529) Henden occults HIP 106146 (8.4 mag)
2026 Jul 07 ~01:20 UT: (38180) 1999 JR123 occults TYC 6274-01131-1 (8.9 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Jul 07 ~01:20 UT: (38180) 1999 JR123 occults TYC 6274-01131-1 (8.9 mag)
2026 Jul 07 ~03:27 UT: (16784) 1996 YD2 occults HIP 108346 (7.5 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Jul 07 ~03:27 UT: (16784) 1996 YD2 occults HIP 108346 (7.5 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 Special Event Upcoming Occultation
2026 Jul 08 ~20:21 UT: (4769) Castalia occults TYC 7302-02215-1 (6.9 mag)
2026 Jul 01 ~21:39 UT: (26432) 1999 XZ202 occults J110644.06+174414.1 (5.8 mag)
Main-Belt Asteroids Past Event
2026 Jul 01 ~21:39 UT: (26432) 1999 XZ202 occults J110644.06+174414.1 (5.8 mag)
2026 Jul 01 ~21:08 UT: (3470) Yaronika occults UCAC4 349-137710 (13.8 mag)
Main-Belt Asteroids Past Event Suspected binary asteroids - GaiaMoons project
2026 Jul 01 ~21:08 UT: (3470) Yaronika occults UCAC4 349-137710 (13.8 mag)
2026 Jun 30 ~21:07 UT: (10261) Nikdollezhal’ occults UCAC4 279-080818 (8.6 mag)
Main-Belt Asteroids Past Event
2026 Jun 30 ~21:07 UT: (10261) Nikdollezhal’ occults UCAC4 279-080818 (8.6 mag)
2026 Jun 29 ~21:41 UT: (152637) 1997 NC1 occults TYC 7352-01279-1 (9.8 mag)
Near Earth Asteroids - Call for Observations by the ACROSS Team Past Event Special Event
2026 Jun 29 ~21:41 UT: (152637) 1997 NC1 occults TYC 7352-01279-1 (9.8 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Jul 04 ~01:44 UT: (21945) Kleshchonok occults UCAC4 358-202080 (6.7 mag)

2026-06-27

Bright star! Short max. duration of only 0.40 s! Last update: 2026 Jun 27, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2010-21945-290148-646838-U202080

Main-Belt Asteroids Upcoming Occultation

2026 Jul 07 ~01:20 UT: (38180) 1999 JR123 occults TYC 6274-01131-1 (8.9 mag)

2026-06-27

Bright star! Short max. duration of only 0.40 s! Last update: 2026 Jun 27, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2013-38180-262278-646808-T01131-1

Main-Belt Asteroids Upcoming Occultation

2026 Jul 07 ~03:27 UT: (16784) 1996 YD2 occults HIP 108346 (7.5 mag)

2026-06-27

Bright star! Last update: 2026 Jun 27, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/2013-16784-310682-646344-H108346

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

2026 Jul 08 ~20:21 UT: (4769) Castalia occults TYC 7302-02215-1 (6.9 mag)

2026-06-27

Apollo asteroid and potential hazardous asteroid (PHA)! Bright star! Short max. duration of only 0.40 s! Last update: 2026 Jun 27, Occult Watcher Cloud: not listed

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

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

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

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

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! Last update: 2026 Jul 02, Occult Watcher…

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…

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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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