70-811 EP Transients

PI: NTE (Fynbo/Xu)

Observing instructions:

Go to the directory
cd ~/scripts/70-811

execute the requested scripts.

Program Tracking

Proposal 70-811

Semester P70: 20241001 - 20250401

Principal Investigator NTE

Programme Einstein Probe transients

Instrument ALFOSC

Time Allocation 20h hard ToO and 20h SoftToO

Total Nights 4

Type ToO+SoftToO

Notes Override, but should aim for (soft) triggers during Nordic service or Technical nights

Total Time Spent 07:55 (hh:mm)

Proposal Date Time Type Targets Files Comments Status

70-811 2024-10-18 00:15 ToO BL-Lac ALHj180113 - ALHj180132 Target observed with clear skies and sub-arcsecond seeing. Observed

70-811 2024-10-22 00:51 ToO EP241021a ALHj220114 - ALHj220118, ALHj220180 - ALHj220184 The optical counterpart was identified in z' and r' images. The conditions were great, sub- arcsecond seeing. Observed

70-811 2024-10-23 00:32 ToO EP241021a ALHj230148 - ALHj230152, ALHj230167 - ALHj230171 Observed with clear sky and seeing better than 1 arcsec. Shared with 70-301 by 70-811 Observed

70-811 2024-10-24 00:26 ToO EP241021a ALHj240145 - ALHj240153 Observed with clear sky and seeing around 0.5-0.7 arcsec. Observed

70-811 2024-10-26 00:00 ToO EP241021a ALHj260179 - ALHj260182 Bad weather only allowed a part of the observation to be taken in thin clouds with high seeing Failed

70-811 2024-10-28 00:52 ToO EP241021a ALHj280004 - ALHj280012 Observed with clear skies and seeing around 1.5 arcsec Observed

70-811 2024-10-30 00:51 ToO EP241021A ALHj300110 - ALHj300118 The target was observed through thin clouds. The optical counterpart is still well distinguishable from the frames. Seeing was ~0.8''. Observed

70-811 2024-11-01 00:18 ToO EP241101a ALHk010143 - ALHk010145 Very light cloud coverage, average seeing around 0.6 arcsec Observed

70-811 2024-11-02 00:26 ToO EP241021a ALHk020100 - ALHk020103 Thin cloud coverage in the beginning of the observations, cleared up after the first observation. Average seeing around 1 arcsec. Observed

70-811 2024-11-03 00:29 ToO EP241021a ALHk030105 - ALHk030109 Thin clouds and sub-arcsec seeing Observed

70-811 2024-11-07 01:19 ToO EP241107a, HD19445 ALHk070003 - ALHk070011; ALHk070021 - ALHk070024 First observation was conducted through thin clouds. The next observation had to be aborted halfway through the third spectrum due to low visibility. The standard star observation was taken with thin clouds, after the last attempt at the main target Observed

70-811 2024-11-08 00:31 ToO EP241021a ALHk080051 - ALHk080055 Observed through thin clouds and seeing of around 1.3 arcsec. Observed

70-811 2024-11-09 00:40 ToO EP241021a ALHk090149 - ALHk090154 Observed through thin clouds and seeing of around 1 arcsecond. Observed

70-811 2024-11-11 00:25 ToO EP241111a ALHk110147 - ALHk110155 Target observed with clear skies and variable seeing around 1.5 to 2 arcsec. Observed

70-811 2024-11-13 00:00 ToO Could not observe target due to bad weather Failed

70-811 2024-11-14 00:00 ToO None None Due to humidity being at 100% all night was it not possible to observe anything. Failed

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 16 2024