72-811 NTE guaranteed time; Probing the Fast X-ray Transients by Einstein Probe

PI:NTE guaranteed time (Fynbo/Xu)

Observing instructions:

Go to the directory
cd ~/scripts/72-811

execute the requested scripts.

Program Tracking

Proposal 72-811

Semester P72: 20251001 - 20260401

Principal Investigator NTE guaranteed time, Johan Fynbo, Dong Xu

Programme Probing the Fast X-ray Transients by Einstein Probe

Instrument AL+NC+ST

Time Allocation 20 hours ToO and 20 hours SoftToO

Total Nights 40h

Type ToO+SoftToO

Notes Override. Soft triggers during Nordic service or Technical nights

Total Time Spent 08:58 (hh:mm)

Proposal Date Time Type Targets Files Comments Status

72-811 2025-10-14 00:31 ToO EP251011C1 ALIj140106 - ALIj140110 Thick clouds moved in intermittently, and multiple attempts were made to restart observations of the target. However, the conditions remained unstable throughout, and the observation was consequently marked as failed. Failed

72-811 2025-10-21 00:39 ToO EP251020C1 ALIj210118 - ALIj210118, ALIj210129 - ALIj210133 Target observed in windy conditions with seeing 2-4". The first attempt was cancelled due to a gust of wind after the first exposure was completed. Observed

72-811 2025-10-22 00:29 ToO EPC251023a ALIj220190 - ALIj220197 Target observed with clear skies and good seeing Observed

72-811 2025-10-24 00:35 ToO EP251023a ALIj240228 - ALIj240233 Target observed with clear skies and good seeing. Observed

72-811 2025-10-26 01:04 ToO EP251027a, EP251023a ALIj260124-ALIj260140 Observed under thin clouds and seeing 1"-1.5". Observed

72-811 2025-10-30 01:08 SoftToO EP251023a ALIj300137 - ALIj300148 Good and stable seeing throughout. Observed

72-811 2025-11-01 00:40 ToO EP251101C1 ALIk010078 - ALIk010080, ALIk010104 - ALIk010108 Thin clouds, and the seeing was around 1.8". Observed

72-811 2025-11-03 00:40 ToO EP251102a STIk030026 - 28, STIk030033 - STIk030039 Clear sky, but bad seeing, fwhm ~ 2". Interrupted OB due to telescope building problem. Ignore files 29-32. Observed

72-811 2025-11-05 00:29 SoftToO EP251105C1 NCIk050525 - NCIk050544 Observed under clear skies and good seeing. Observed

72-811 2025-11-16 00:52 SoftToO SP0644+375, EP251020a ALIk160122 - ALIk160132 Observed near peak LST range. Standard taken at a slightly lower airmass to target. Observed

72-811 2025-11-18 00:51 ToO EP251118a, SP1045+378 ALIk180135 - ALIk180155 Observed under clear sky and good seeing. Observed

72-811 2025-11-23 00:25 SoftToO EP251118a ALIk230141 - ALIk230144 Thin clouds, and the seeing was around 1.6". Observed

72-811 2025-11-25 00:35 ToO EP251124b, EP251125C1 ALIk250074-116, ep251124b was observed twice Observed

The above information is collected from the ToO/Mon reports that have been created by the observer.

Should any of the observations have been carried out using the OB system, you will find additional information HERE

Last modified: September 12 2025