Night Log 2026-05-02

SA: Lee SO: Austun Others: Zwido (in training) ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ It was another long night with a full Moon and good seeing. We observed both RSS and HRS blocks with P1, P2 and P3 ratings. Science data taken for: 2026-1-MLT-002 P1 HRS (x6) (HRS-MR spectra of Classical Cepheids ) 2026-1-SCI-004 P1 HRS (Studying the variable stellar winds of Wolf-Rayet stars) 2024-1-MLT-010 P2 HRS (x2) (Stellar Characterisation of Ariel mission targets: derivation of N and O abundances) 2025-2-MLT-008 P2 HRS (Monitoring beta Pic for exocomets.) 2026-1-MLT-006 P2 RSS (x5) (Search for new Galactic symbiotic stars) 2026-1-MLT-001 P3 HRS (x2) (Ovservations of ssrAp stars) 2024-2-MLT-001 P3 HRS (Spectroscopy of compact heirarchial triples) 2025-2-MLT-013 P3 RSS (Searching for double hydrogen-deficient stars) 2025-2-LSP-001 P4 HRS (Defining a new chemically peculiar star catalogue) ------------------------------------------------------------------------

Night Log 2026-05-01

SA: Lee SO: Austun Others: Zwido (taking over) ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ A good start to a new semester of observing with a full Moon. The night started very early during twilight and we observed several blocks throughout the night including one P0 and several P1 and P2s. Science data taken for: 2026-1-DDT-003 P0 RSS (RSS Spectra of EP260321a) 2024-2-COM-002 P1 RSS (This is a commissioning proposal) 2026-1-MLT-002 P1 HRS (x7) (HRS-MR spectra of Classical Cepheids ) 2025-2-MLT-004 P1 HRS (Radial Velocity Monitoring and Atmospheric Parameters Study of Yellow Symbiotic Giants) 2025-2-MLT-012 P2 HRS (x2) (Search for binary stars which may form planetary nebulae.) 2026-1-MLT-006 P2 RSS (x3) (Search for new Galactic symbiotic stars) 2025-2-MLT-008 P2 HRS (Monitoring beta Pic for exocomets.) 2024-1-MLT-010 P2 HRS (Stellar Characterisation of Ariel mission targets: derivation of N and O abundances) 2026-1-MLT-001 P3 HRS (x2) (Ovservations of ssrAp stars) 2024-2-MLT-001 P3 HRS (x2) (Spectroscopy of compact heirarchial triples) ------------------------------------------------------------------------

Night Log 2026-04-30

SA: Lee SO: Austun Others: Zwido (in drivers seat), Lisa ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ A great night for science, the night started very slowly but we managed to observe 12 blocks including one P0 and several P1 to P4s. Science data taken for: 2025-2-SCI-012 P0 HRS (Unveiling Composition and Winds in an Exoplanet's Dayside Atmosphere) 2025-2-MLT-013 P1 RSS (x2) (Searching for double hydrogen-deficient stars) 2026-1-MLT-002 P1 HRS (x3) (HRS-MR spectra of Classical Cepheids ) 2024-2-LSP-001 P2 HRS (Followup of Transients) 2025-2-SCI-038 P2 HRS (Identifying Be eclipsing binaries) 2024-1-MLT-010 P2 HRS (Stellar Characterisation of Ariel mission targets: derivation of N and O abundances) 2025-2-SCI-003 P3 HRS (x2) (Cosmic dance of massive triple) 2025-2-LSP-001 P4 HRS (Defining a new chemically peculiar star catalogue) ------------------------------------------------------------------------

Night Log 2026-04-29

SA: Lee SO: Austun Others: Zwido ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ We managed only 3 blocks before closing to thick cloud. Science data taken for: 2025-1-MLT-001 P0 RSS (Observations of supernovae, near and far.) 2026-1-MLT-002 P1 HRS (HRS-MR spectra of Classical Cepheids ) 2024-2-LSP-001 P2 HRS (Followup of Transients) ------------------------------------------------------------------------

Night Log 2026-04-28

SA: Alexei SO: Veronica Others: Lee, Zwido and Austin to handover ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ => Night with bright moon and rising humidity. Were closed by humidity before midnight. Anywhere, observed two P0 blocks. Science data taken for: 2025-1-MLT-001 P0 RSS (x2) (Observations of supernovae, near and far.) 2026-1-MLT-002 P1 HRS (x2) (HRS-MR spectra of Classical Cepheids ) ------------------------------------------------------------------------

Night Log 2026-04-27

SA: Alexei SO: Veronica Others: ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ => Some amount of blocks were done before we were closed by humidity. Science data taken for: 2026-1-MLT-002 P1 HRS (x2) (HRS-MR spectra of Classical Cepheids ) 2024-2-LSP-001 P2 HRS (Followup of Transients) 2024-1-MLT-010 P2 HRS (Stellar Characterisation of Ariel mission targets: derivation of N and O abundances) 2025-1-MLT-001 P3 RSS (Observations of supernovae, near and far.) ------------------------------------------------------------------------

Night Log 2026-04-26

SA: Alexei SO: Veronica Others: ------------------------------------------------------------------------ Summary ------------------------------------------------------------------------ => The whole night lost due to weather No science data taken. ------------------------------------------------------------------------