IOTA/ES - Call for Observations
International Occultation Timing Association / European Section e.V.
Stellar occultation by objects in solar system which should be on an observer’s high priority list.
Possible satellite! On 2024 August 7, a possible satellite was discovered by J. Juan, ES. The upcoming occultation could confirm a discovery. Please observe! (Shadow profile from Occult database, provided…
Occultation by a comet! Updated path prediction: Path shift to the northwest! Very large error limits. All stations should observe! Last update: 2025 May 19, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1607-13P-260797-646310-U190178
Short max. duration of only 0.54 s! Nikolai Wünsche (IOTA/ES) gives on his call for observation on astronomie.de some observing advices: – Timimg: It should be possible to measure the…
Binary asteroid! Very faint star! Faint mag drop of only 0.8 mag! Expected orientation of the two components on the Earth plane at 19:32UT: Expect blinks or double occultations! Last…
On behalf of Prof. Costantino Sigismondi, International Center for Relativistic Astrophysics (ICRA), Italy, we present this very special call for observations: Introduction: Measuring the solar diameter during total eclipses is…
Centaur! Trans-Neptunian Object! Observation campaign by the ERC Lucky Star project! Very faint star! Very extended error limits – all stations should observe! Last update: 2025 Feb 20, Occult Watcher…
Trans-Neptunian Object! Centaur! Special observation campaign by the ERC Lucky Star project! See Call for Observation in Journal for Occultation Astronomy 2025-01 Last update: 2025 Jan 29, Occult Watcher Cloud:…
Apollo asteroid! Target of the DART and HERA missions! Extreme short max. duration of only 0.03 s! Last update: 2025 Jan 19, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1488-65803-33707-649042-U004123
Apollo asteroid! Target of the DART and HERA missions! Extreme short max. duration of only 0.04 s! Last update: 2025 Jan 04, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1472-65803-16426-648523-U001676
Bright star! Annular occultation! Apparent diameter of star larger than of the asteroid! Last update: 2024 Dec 28, Occult Watcher Cloud: https://cloud.occultwatcher.net/event/1467-279385-63476-649012-J5719361