Exposure Time Calculator Version Information

• Version 1.9 (Sept 25th, 2024)

  SRT: updated instrumental parameters for C-low receiver; added info on nodding observing strategy in the output page.

• Version 1.8 (March 27th, 2024)

  SRT: updated instrumental parameters for C-low and K band receivers; updated list of available backends and configurations.

• Version 1.7 (October 03th, 2023)

  Updated Cross Scan computations to reflect the convention adopted by the DISCOS observing system/Basie scheduling system, see manual. Improved checks on input parameters for XArcos. SRT: added C-low receiver and Skarab backend; updated instrumental parameters for C-high receiver. Medicina: updated instrumental parameters for Chigh receiver; added SARDARA for continuum observations.

• Version 1.6 (March 06th, 2023)

  Medicina: updated instrumental parameters after refurbishment of the K-band receiver.

• Version 1.5 (Sept 15th, 2022)

  Medicina: updated instrumental setup including the new SARDARA backend. SRT: updated gain and beam efficiency at 6.7 GHz.

• Version 1.4 (Sept 14th, 2021)

  Medicina: updated instrumental setup.

• Version 1.3 (March 4th, 2020)

  Implemented gain computation for SRT K band using polynomial coefficents. Updated SRT instrumental setup.

• Version 1.2 (March 18th, 2019)

  Changed computations for Total Power cross scans. Updated available instrumentation for both Medicina and SRT.

• Version 1.1 (September 14th, 2018)

  Added spectropolarimetric mode for Medicina. Updated to the individual telescopes/observing modes are reported in the telescope Change Log files (linked in the individual input forms).

• Version 1.0 (November 19th, 2014)

  First version of ETC main page including all telescopes.