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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2026 Apr 11 ~22:11 UT: (102) Miriam occults UCAC4 533-041052 (15.9 mag) 2026 Apr 11 ~20:21 UT: (266) Aline occults UCAC4 508-027405 (15.6 mag) 2026 Apr 10 ~19:15 UT: (8779) 1971 UH1 occults HIP 63496 (8.1 mag) 2026 Apr 08 ~23:37 UT: (15010) 1998 QL92 occults HIP 75858 (8.4 mag) 2026 Apr 08 ~19:13 UT: (49304) 1998 VT9 occults HIP 63634 (8.8 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation

2026 Apr 11 ~22:11 UT: (102) Miriam occults UCAC4 533-041052 (15.9 mag)

2026-03-28
Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation

2026 Apr 11 ~20:21 UT: (266) Aline occults UCAC4 508-027405 (15.6 mag)

2026-03-28
Main-Belt Asteroids Upcoming Occultation

2026 Apr 10 ~19:15 UT: (8779) 1971 UH1 occults HIP 63496 (8.1 mag)

2026-03-28
Main-Belt Asteroids Upcoming Occultation

2026 Apr 08 ~23:37 UT: (15010) 1998 QL92 occults HIP 75858 (8.4 mag)

2026-03-28
Main-Belt Asteroids Upcoming Occultation

2026 Apr 08 ~19:13 UT: (49304) 1998 VT9 occults HIP 63634 (8.8 mag)

2026-03-28
  • New Predictions
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  • Past Events
2026 Apr 12 ~00:11 UT: (P5M44) Kallichore occults UCAC4 561-040971 (12.5 mag)
Flyby target of a spacecraft Planetary Moons Special Event
2026 Apr 12 ~00:11 UT: (P5M44) Kallichore occults UCAC4 561-040971 (12.5 mag)
2026 Apr 22 ~23:12 UT: (41060) 1999 VB28 occults UCAC4 561-040778 (8.8 mag)
Main-Belt Asteroids
2026 Apr 22 ~23:12 UT: (41060) 1999 VB28 occults UCAC4 561-040778 (8.8 mag)
2026 Apr 22 ~01:54 UT: (18655) 1998 FS26 occults UCAC4 418-116215 (13.0 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project
2026 Apr 22 ~01:54 UT: (18655) 1998 FS26 occults UCAC4 418-116215 (13.0 mag)
2026 Apr 21 ~22:21 UT: (38950) 2000 ST295 occults HIP 67903 (8.7 mag)
Main-Belt Asteroids
2026 Apr 21 ~22:21 UT: (38950) 2000 ST295 occults HIP 67903 (8.7 mag)
2026 Apr 12 ~00:11 UT: (P5M44) Kallichore occults UCAC4 561-040971 (12.5 mag)
Flyby target of a spacecraft Planetary Moons Special Event
2026 Apr 12 ~00:11 UT: (P5M44) Kallichore occults UCAC4 561-040971 (12.5 mag)
2026 Apr 08 ~23:37 UT: (15010) 1998 QL92 occults HIP 75858 (8.4 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Apr 08 ~23:37 UT: (15010) 1998 QL92 occults HIP 75858 (8.4 mag)
2026 Apr 10 ~19:15 UT: (8779) 1971 UH1 occults HIP 63496 (8.1 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Apr 10 ~19:15 UT: (8779) 1971 UH1 occults HIP 63496 (8.1 mag)
2026 Apr 11 ~22:11 UT: (102) Miriam occults UCAC4 533-041052 (15.9 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation
2026 Apr 11 ~22:11 UT: (102) Miriam occults UCAC4 533-041052 (15.9 mag)
2026 Apr 05 ~22:38 UT: (30554) 2001 OP57 occults TYC 5595-00723-1 (9.0 mag)
Main-Belt Asteroids Past Event
2026 Apr 05 ~22:38 UT: (30554) 2001 OP57 occults TYC 5595-00723-1 (9.0 mag)
2026 Apr 04 ~19:12 UT: (1108) Demeter occults HIP 35705 (7.4 mag)
Main-Belt Asteroids Past Event
2026 Apr 04 ~19:12 UT: (1108) Demeter occults HIP 35705 (7.4 mag)
2026 Apr 03 ~22:14 UT: (23167) 2000 GL124 occults TYC 1959-01421-1 (8.9 mag)
Main-Belt Asteroids Past Event
2026 Apr 03 ~22:14 UT: (23167) 2000 GL124 occults TYC 1959-01421-1 (8.9 mag)
2026 Apr 03 ~20:07 UT: (20759) 2000 CX96 occults TYC 0725-01921-1 (7.8 mag)
Main-Belt Asteroids Past Event
2026 Apr 03 ~20:07 UT: (20759) 2000 CX96 occults TYC 0725-01921-1 (7.8 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Apr 08 ~19:13 UT: (49304) 1998 VT9 occults HIP 63634 (8.8 mag)

2026-03-28

Bright star! Short max. duration of 0.30 s! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1923-49304-184706-647700-H63634

Main-Belt Asteroids Upcoming Occultation

2026 Apr 08 ~23:37 UT: (15010) 1998 QL92 occults HIP 75858 (8.4 mag)

2026-03-28

Bright star! Short max. duration of 0.58 s! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1923-15010-219418-646936-H75858

Main-Belt Asteroids Upcoming Occultation

2026 Apr 10 ~19:15 UT: (8779) 1971 UH1 occults HIP 63496 (8.1 mag)

2026-03-28

Bright star! Short max. duration of 0.45 s! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1925-8779-184261-647830-H63496

Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation

2026 Apr 11 ~20:21 UT: (266) Aline occults UCAC4 508-027405 (15.6 mag)

2026-03-28

Slow-rotating asteroid! Very faint star! Faint mag drop of only 0.27 mag! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1926-266-92758-648715-U027405

Main-Belt Asteroids Observation Campaign for Slow Rotators Upcoming Occultation

2026 Apr 11 ~22:11 UT: (102) Miriam occults UCAC4 533-041052 (15.9 mag)

2026-03-28

Slow-rotating asteroid! Very faint star! Faint mag drop of only 0.34 mag! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1926-102-105133-649039-U041052

Main-Belt Asteroids

2026 Apr 11 ~23:59 UT: (16277) Mallada occults HIP 32044 (7.3 mag)

2026-03-28

Bright star! Short max. duration of 0.64 s! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1926-16277-95038-649700-H32044

Flyby target of a spacecraft Planetary Moons Special Event

2026 Apr 12 ~00:11 UT: (P5M44) Kallichore occults UCAC4 561-040971 (12.5 mag)

2026-04-03

Kallichore is a satellite of Jupiter and a flyby target of ESA’s mission JUICE! Yücel Kılıç, Instituto de Astrofísica de Andalucía (IAA-CSIC), wrote on Planoccult on Mar 30: Following a…

Main-Belt Asteroids Observation Campaign for Slow Rotators

2026 Apr 15 ~20:10 UT: (266) Aline occults UCAC4 508-028657 (13.2 mag)

2026-03-28

Slow-rotating asteroid! Faint star! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1930-266-93867-648719-U028657

Flyby target of a spacecraft Near Earth Asteroids - Call for Observations by the ACROSS Team

2026 Apr 16 ~00:26 UT: (65803) Didymos occults UCAC4 339-098595 (13.6 mag)

2026-03-28

Apollo asteroid! Target of the DART and HERA missions! Short max. duration of only 0.35 s! Last update: 2026 Mar 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1931-65803-249472-646601-U098595

Main-Belt Asteroids

2026 Apr 17 ~19:25 UT: (6514) Torahiko occults UCAC4 526-013143 (8.9 mag)

2026-04-02

Bright star! Short max. duration of 0.25 s! Last update: 2026 Apr 02, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1932-6514-77205-648952-U013143

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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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