Night Log 2026-11-11

SA: Nikki SO: Veronica Others: Nico, Thabelo for HRS temperature alarm, Nico again for further HRS concerns + PDET issues, Shamiel for continued PDET issues ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ We had a beautiful night in terms of conditions, with clear skies and good, stable, sub-arcsecond seeing throughout the night. Although we had a variety of (technical) hiccups, resulting in HRS being unavailable for the night among other things, we managed to observe a few blocks of varying priority, including four P0s. The Taurids looked cool too. Science data taken for: 2025-2-MLT-011 P0 RSS (x2) (Obtaining dynamical information and constraining galaxy cluster merger geometries and timescales) 2026-2-SCI-012 P0 RSS (x2) (Deriving Redshifts of Low Surface Brightness Galaxies) 2025-1-MLT-004 P1 RSS (x2) (Near-UV and visible spectroscopy of the primitive asteroids) 2026-2-SCI-011 P2 RSS (Searching for potential neutron star and black hole binaries accelerated by supernovae) 2026-2-SCI-007 P3 RSS (x2) (Spectroscopic Monitoring of Weak Emission-Line Quasars Exhibiting BAL Outflows.) ------------------------------------------------------------------------

Night Log 2026-11-10

SA: Rudi SO: Austun Others: Nikki, Nico, E10 ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ Clouds prevented us from observing in the first half of the night. We managed to observe a number of high priority blocks using only HRS for the second half of the night. Science data taken for: 2026-2-SCI-014 P1 HRS (High resolution spectroscopy of Cepheid standard stars) 2026-2-DDT-002 P1 HRS (Validating a 5 Myr old exoplanet) 2026-1-MLT-002 P2 HRS (HRS-MR spectra of Classical Cepheids ) 2026-2-SCI-004 P2 HRS (Investigating the origin of lithium.) 2026-2-SCI-003 P3 HRS (Spectroscopy of evolved close binary stars) 2024-1-MLT-010 P3 HRS (Stellar Characterisation of Ariel mission targets: derivation of N and O abundances) ------------------------------------------------------------------------

Night Log 2026-11-09

SA: Rudi SO: Austun Others: ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ A full night of observing. The conditions allowed us to observe mostly high priority blocks. Minimal technical issues encountered. Science data taken for: 2026-1-MLT-004 P0 RSS (Observations of supernovae, near and far.) 2026-2-SCI-012 P0 RSS (x2) (Deriving Redshifts of Low Surface Brightness Galaxies) 2026-2-DDT-002 P0 HRS (Validating a 5 Myr old exoplanet) 2026-2-MLT-001 P1 HRS (Study of optical spectra of Be/X-ray binary pulsar SXP523 undergoing optical outburst) 2026-1-SCI-027 P1 HRS (Determining the chemical composition of Type II Cepheids.) 2025-1-MLT-004 P1 RSS (x2) (Near-UV and visible spectroscopy of the primitive asteroids) 2025-2-MLT-004 P1 HRS (Radial Velocity Monitoring and Atmospheric Parameters Study of Yellow Symbiotic Giants) 2026-2-SCI-011 P2 RSS (Searching for potential neutron star and black hole binaries accelerated by supernovae) 2026-1-MLT-002 P3 HRS (HRS-MR spectra of Classical Cepheids ) ------------------------------------------------------------------------

Night Log 2026-11-08

SA: Rudi SO: Austun Others: ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ A full night of observing. Really bad seeing at the start of the night forced us to observe mainly lower priority targets. A change in wind direction in the middle of the night caused a drop in seeing and allowed us to observe higher priority blocks. Science data taken for: 2026-2-SCI-012 P0 RSS (x2) (Deriving Redshifts of Low Surface Brightness Galaxies) 2026-1-MLT-002 P1 HRS (x3) (HRS-MR spectra of Classical Cepheids ) 2026-2-SCI-003 P3 HRS (x2) (Spectroscopy of evolved close binary stars) 2025-2-MLT-008 P3 HRS (Monitoring beta Pic for exocomets.) 2024-1-MLT-010 P3 HRS (Stellar Characterisation of Ariel mission targets: derivation of N and O abundances) 2025-2-LSP-001 P4 HRS (x4) (Defining a new chemically peculiar star catalogue) ------------------------------------------------------------------------

Night Log 2026-11-07

SA: Alexei SO: Austun Others: ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ => We observe only two high priority blocks before were closed by high humidity and some clouds. Science data taken for: 2025-1-MLT-004 P1 RSS (x2) (Near-UV and visible spectroscopy of the primitive asteroids) ------------------------------------------------------------------------

Night Log 2026-11-06

SA: Danièl SO: Austun Others: Shamin, Ram, Karmen Delegates ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ We managed to observe 4 blocks before high humidity closed us for the rest of the night. Science data taken for: 2025-1-MLT-004 P1 RSS (x2) (Near-UV and visible spectroscopy of the primitive asteroids) 2025-2-LSP-001 P4 HRS (x2) (Defining a new chemically peculiar star catalogue) ------------------------------------------------------------------------

Night Log 2026-11-05

SA: Lee SO: Austun Others: ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ Night lost to weather. No science data taken. ------------------------------------------------------------------------