Night Log 2026-11-13

SA: Nikki SO: Veronica Others: ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ The night started off with some thin clouds and good seeing, but the latter gradually increased after midnight, until it got really bad closer to 3am. Some attempted blocks had to be rejected, and towards the end of the night we had to resort to P4s. We did manage to successfully observe two P0s and a few P1/2s. Otherwise nothing funny happened. Science data taken for: 2026-1-MLT-004 P0 RSS (Observations of supernovae, near and far.) 2026-2-SCI-012 P0 RSS (Deriving Redshifts of Low Surface Brightness Galaxies) 2026-1-MLT-002 P1 HRS (HRS-MR spectra of Classical Cepheids ) 2026-2-SCI-015 P1 HRS (The Formation and Evolution of Binary Stars: An Empirical Study of WD-MS Stars ) 2026-1-SCI-027 P2 HRS (x2) (Determining the chemical composition of Type II Cepheids.) 2025-2-LSP-001 P4 HRS (x2) (Defining a new chemically peculiar star catalogue) ------------------------------------------------------------------------

Night Log 2026-11-12

SA: Nikki SO: Veronica Others: Nico for HRS tantrum ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ Another clear night with very good seeing, and light on technical problems. We observed mostly high-priority blocks, including four P0s. Science data taken for: 2026-1-MLT-004 P0 RSS (Observations of supernovae, near and far.) 2025-2-MLT-011 P0 RSS (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) 2026-2-MLT-004 P1 HRS (Multi epoch radial velocity measurements of non-pulsating HMXBs in the SMC) 2026-1-SCI-027 P1 HRS (Determining the chemical composition of Type II Cepheids.) 2026-2-SCI-011 P2 RSS (Searching for potential neutron star and black hole binaries accelerated by supernovae) 2026-2-NOIR-002 P3 RSS (Supporting ZLIONS spectroscopic follow up) 2026-2-SCI-003 P3 HRS (Spectroscopy of evolved close binary stars) 2025-2-LSP-001 P4 HRS (Defining a new chemically peculiar star catalogue) ------------------------------------------------------------------------

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) ------------------------------------------------------------------------