in reports

2023 R/V Healy EM122 QAT Report

Cruise ID: HLY23TA
Multibeam System: EM122
Dates: May 23 – July 13, 2023

  • The USCGC Healy (HLY) is equipped with a Kongsberg Maritime EM122 multibeam echosounder (1° TX x 2° RX) with Seapath 330+ (primary) and Applanix Oceanmaster POS MV (secondary) navigation systems
  • The original EM122 RX array modules on USCGC Healy were found to be failing during recent impedance testing; these modules were replaced with lightly used units (donated from a NAVO vessel undergoing an EM124 upgrade) during the 2022-23 maintenance period at Mare Island Dry Dock in Vallejo, CA
  • The Multibeam Advisory Committee (MAC) was asked to assist with Quality Assurance Testing (QAT) of the ship’s multibeam echosounder and Sea Acceptance Testing (SAT) of the ‘new’ RX array ahead of the 2023 field season; due to scheduling constraints, MAC personnel provided remote support for line planning and data analysis

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