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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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Upcoming Occultations

2025 Mar 17 ~19:05 UT: (433) Eros occults UCAC4 522-017107 (12.2 mag) 2026 Mar 18 ~03:48 UT: (10666) Feldberg occults HIP 91441 (8.4 mag) 2026 Mar 18 ~03:29 UT: (1010) Marlene occults UCAC4 472-046596 (13.5 mag) 2026 Mar 17 ~23:55 UT: (10363) 1994 UP11 occults TYC 0858-01023-1 (8.9 mag) 2026 Mar 16 ~23:19 UT: (16307) 7569 P-L occults HIP 57339 (6.8 mag)
Amor Asteroids Near Earth Asteroids - Call for Observations by the ACROSS Team Upcoming Occultation

2025 Mar 17 ~19:05 UT: (433) Eros occults UCAC4 522-017107 (12.2 mag)

2026-03-15
Main-Belt Asteroids Upcoming Occultation

2026 Mar 18 ~03:48 UT: (10666) Feldberg occults HIP 91441 (8.4 mag)

2026-03-03
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation

2026 Mar 18 ~03:29 UT: (1010) Marlene occults UCAC4 472-046596 (13.5 mag)

2026-03-03
Main-Belt Asteroids Upcoming Occultation

2026 Mar 17 ~23:55 UT: (10363) 1994 UP11 occults TYC 0858-01023-1 (8.9 mag)

2026-03-03
Main-Belt Asteroids Upcoming Occultation

2026 Mar 16 ~23:19 UT: (16307) 7569 P-L occults HIP 57339 (6.8 mag)

2026-03-03
  • New Predictions
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  • Past Events
2025 Mar 17 ~19:05 UT: (433) Eros occults UCAC4 522-017107 (12.2 mag)
Amor Asteroids Near Earth Asteroids - Call for Observations by the ACROSS Team Upcoming Occultation
2025 Mar 17 ~19:05 UT: (433) Eros occults UCAC4 522-017107 (12.2 mag)
2026 Mar 26 ~23:29 UT: (54071) 2000 GQ146 occults TYC 4415-00544-1 (10.3 mag)
Amor Asteroids Near Earth Asteroids - Call for Observations by the ACROSS Team
2026 Mar 26 ~23:29 UT: (54071) 2000 GQ146 occults TYC 4415-00544-1 (10.3 mag)
2026 Mar 26 ~18:51 UT: (19111) 1981 EM29 occults HIP 28734 (4.3 mag)
Main-Belt Asteroids
2026 Mar 26 ~18:51 UT: (19111) 1981 EM29 occults HIP 28734 (4.3 mag)
2026 Mar 26 ~18:05 UT: (266) Aline occults UCAC4 506-022442 (12.0 mag)
Main-Belt Asteroids Observation Campaign for Slow Rotators
2026 Mar 26 ~18:05 UT: (266) Aline occults UCAC4 506-022442 (12.0 mag)
2025 Mar 17 ~19:05 UT: (433) Eros occults UCAC4 522-017107 (12.2 mag)
Amor Asteroids Near Earth Asteroids - Call for Observations by the ACROSS Team Upcoming Occultation
2025 Mar 17 ~19:05 UT: (433) Eros occults UCAC4 522-017107 (12.2 mag)
2026 Mar 17 ~23:55 UT: (10363) 1994 UP11 occults TYC 0858-01023-1 (8.9 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Mar 17 ~23:55 UT: (10363) 1994 UP11 occults TYC 0858-01023-1 (8.9 mag)
2026 Mar 18 ~03:29 UT: (1010) Marlene occults UCAC4 472-046596 (13.5 mag)
Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project Upcoming Occultation
2026 Mar 18 ~03:29 UT: (1010) Marlene occults UCAC4 472-046596 (13.5 mag)
2026 Mar 18 ~03:48 UT: (10666) Feldberg occults HIP 91441 (8.4 mag)
Main-Belt Asteroids Upcoming Occultation
2026 Mar 18 ~03:48 UT: (10666) Feldberg occults HIP 91441 (8.4 mag)
2026 Mar 14 ~22:45 UT: (21701) Gabemendoza occults UCAC4 525-052161 (6.2 mag)
Main-Belt Asteroids Past Event
2026 Mar 14 ~22:45 UT: (21701) Gabemendoza occults UCAC4 525-052161 (6.2 mag)
2026 Mar 14 ~19:59 UT: (16560) Daitor occults UCAC4 494-004705 (12.9 mag)
Jupiter Trojans - predicted by the ERC Lucky Star project Past Event
2026 Mar 14 ~19:59 UT: (16560) Daitor occults UCAC4 494-004705 (12.9 mag)
2026 Mar 13 ~00:27 UT: (1036) Ganymed occults UCAC4 374-052869 (14.3 mag)
Amor Asteroids Near Earth Asteroids - Call for Observations by the ACROSS Team Past Event
2026 Mar 13 ~00:27 UT: (1036) Ganymed occults UCAC4 374-052869 (14.3 mag)
2026 Mar 12 ~20:05 UT: (5368) Vitagliano occults HIP 22990 (7.0 mag)
Main-Belt Asteroids Past Event
2026 Mar 12 ~20:05 UT: (5368) Vitagliano occults HIP 22990 (7.0 mag)
Main-Belt Asteroids Upcoming Occultation

2026 Mar 16 ~23:19 UT: (16307) 7569 P-L occults HIP 57339 (6.8 mag)

2026-03-03

Bright star! Short max. duration of only 0.25 s! Last update: 2026 Mar 03, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1900-16307-166531-648432-H57339

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

2025 Mar 17 ~19:05 UT: (433) Eros occults UCAC4 522-017107 (12.2 mag)

2026-03-15

Amor class asteroid! Faint mag drop of only 0.47 mag! Last update: 2026 Mar 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1901-433-83591-648894-U017107

Main-Belt Asteroids Upcoming Occultation

2026 Mar 17 ~23:55 UT: (10363) 1994 UP11 occults TYC 0858-01023-1 (8.9 mag)

2026-03-03

Bright star! Short max. duration of only 0.35 s! Last update: 2026 Mar 03, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1901-10363-159304-648676-T01023-1

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

2026 Mar 18 ~03:29 UT: (1010) Marlene occults UCAC4 472-046596 (13.5 mag)

2026-03-03

Suspected binary asteroid! Faint star! Raphaël Lallemand (GAIAMOONS) wrote on Planoccult on Mar 03: The main body is 42.5 km wide, with a satellite between 4 and 40 km wide.…

Main-Belt Asteroids Upcoming Occultation

2026 Mar 18 ~03:48 UT: (10666) Feldberg occults HIP 91441 (8.4 mag)

2026-03-03

Bright star! Short max. duration of only 0.20 s! Last update: 2026 Mar 03, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1902-10666-264022-646449-H91441

Main-Belt Asteroids Observation Campaign for Slow Rotators

2026 Mar 18 ~19:21 UT: (691) Lehigh occults TYC 1444-01933-1 (10.3 mag)

2026-03-15

Slow-rotating asteroid! Last update: 2026 Mar 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1902-691-171280-649223-T01933-1

Main-Belt Asteroids Suspected binary asteroids - GaiaMoons project

2026 Mar 18 ~20:34 UT: (75510) 1999 XO198 occults TYC 1882-01399-1 (9.8 mag)

2026-03-03

Suspected binary asteroid! Very short max. duration of only 0.19s! Raphaël Lallemand (GAIAMOONS) wrote on Planoccult on Mar 03: The main body is 3.3 km wide, with a satellite between…

Main-Belt Asteroids

2026 Mar 20 ~19:39 UT: (6319) Beregovoj occults HIP 60680 (7.6 mag)

2026-03-15

Bright star! Path shift expected. Bad proper motion. Double star! Please observe outside the path as well! Short max. duration of only 0.55 s! Last update: 2026 Mar 15, Occult…

Flyby target of a spacecraft Main-Belt Asteroids

2026 Mar 20 ~22:20 UT: (16) Psyche occults UCAC4 553-013033 (13.8 mag)

2026-03-15

Target of the NASA’s Psyche mission! Faint mag drop of only 0.14 mag! Last update: 2026 Mar 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1904-16-73570-649293-U013033

Main-Belt Asteroids Observation Campaign for Slow Rotators

2026 Mar 21 ~01:30 UT: (886) Washingtonia occults UCAC4 644-045585 (13.3 mag)

2026-03-15

Slow-rotating asteroid! Trans-Atlantic event! Last update: 2026 Mar 15, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1905-886-125008-650422-U045585

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IOTA/ES - Call for Observations

International Occultation Timing Association / European Section e.V.

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