Delivery and integration of MEGARA at GTC: the process of going from laboratory to the telescope



Downloads per month over past year

Gil de Paz, Armando and Castillo Morales, Africa and Sánchez Penim, Ainhoa and Verdet Paredes, Antonio and Pascual Ramírez, Sergio and Curto, Andrés and García, Oscar and Gallego Maestro, Jesús and otros, ... (2018) Delivery and integration of MEGARA at GTC: the process of going from laboratory to the telescope. Proceedings of SPIE, 10705 . ISSN 0277-786X

[thumbnail of castillo25libre.pdf]

Official URL:


MEGARA is an IFU & MOS medium-resolution spectrograph that finished its commissioning at the GTC 10m telescope on August 2017. MEGARA is a fiber-fed high-resolution spectrograph with two major units, Fiber-MOS & Spectrograph, that are now located at the Folded-Cass F and Nasmyth-A foci of GTC respectively. These are linked by more than 1200 fibers 44.5m-length split between two observing modes, the LCB (Integral Field Unit, IFU) and a Multi-Object (MOS) capability with 92 robotic positioners each one provided with a mini-bundle of 7 fibers. The spectrograph can accommodate 18 VPHs (11 of them can be simultaneously mounted) covering the visible wavelength range at Resolving Powers between R=6000-20000. This paper presents the sequence of tasks carried out after Laboratory Acceptance at the Universidad Complutense de Madrid to move the whole instrument to the GTC. A detailed day-to-day plan was followed to disassemble, pack, transport, reintegrate the full instrument at the GTC and to verify performance to ensure the instrument was ready for commissioning. The lessons learnt are relevant to other double-focus instruments being developed such as WEAVE@WHT or PFS@Subaru.

Item Type:Article
Additional Information:

© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only. Artículo firmado por 20 autores. Conference on Modeling, Systems Engineering, and Project Management for Astronomy (VIII. 2018. Austin, TX)

Uncontrolled Keywords:MEGARA; GTC; Integral field unit (IFU); Multi-object spectrograph (MOS); Fiber bundles; Packing; Delivery; Integration; Verification
Subjects:Sciences > Physics > Astrophysics
Sciences > Physics > Astronomy
ID Code:50503
Deposited On:13 Feb 2019 09:49
Last Modified:13 Feb 2019 09:49

Origin of downloads

Repository Staff Only: item control page