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LCOGT / mop

Microlensing Observation Portal
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OGLE broker doesn't grab data for events from previous seasons #157

Closed KKruszynska closed 2 months ago

KKruszynska commented 3 months ago

Etienne noticed that MOP doesn't have the full lightcurve for OGLE-2023-GD-0011. OGLE EWS website has more data: link.

We should grab the full dataset from OGLE EWS website, because otherwise we are missing long events spanning over multiple seasons (new objective of the OMEGA Project) or we are missing events that were alerted late in the previous season and peaked in the new season (especially for the disc events that OGLE now alerts on).

I will have a look at it with Rachel once we are back in the LCO office.

KKruszynska commented 3 months ago
KKruszynska commented 3 months ago

Alive OGLE events from past seasons exist only for 2023. Out of all Alive OGLE events (413) in MOP, 49 are from 2023. Many of them are probably at baseline but are not automatically marked as such (not Alive).

For comparison, out of all Alive Gaia microlensing events (30), 27 are from 2023. There is one event from 2020 (Gaia20dup), one from 2021 and one from 2022. There are also 14 MOA alive events (two from 2021, two from 2022, and 10 from 2023).

rachel3834 commented 2 months ago

This issue arose from our handling of the way OGLE groups alerts in its Early Warning System by year. Our code assumed that we would only need to update the photometry for targets detected in the current year, to minimize the data transfers and computing overheads. For stellar events this has worked pretty well, but it fails of course for long tE events.

I've updated the harvest_ogle code and the parameters of the corresponding cronjob to ensure that it updates the photometry for all events detected in the current year and the previous year.

rachel3834 commented 2 months ago

Fix deployed in MOP v4.5.3.