There were no DTONs created for this survey.The assigned polygon was completely surveyed.All survey systems and methods utilized during this survey were as described in S-K949-MIST-18_DAPR.NOAA Flower Garden Banks National Marine Sanctuary (FGBNMS) has partnered with Bureau of Ocean Energy Management (BOEM) on a series of multibeam mapping projects of BOEM's No Activity Zones (NAZ) in the western Gulf of Mexico. Data from these surveys will support BOEM decision making on updates to the NAZs. FGBNMS requested multibeam mapping support from Navigation Response Branch's multibeam Mobile Integrated Survey Team (MB-MIST). A VDatum separation model was created for the survey area. Vertical Control - The field first surveyed to the ellipse using GNSS real time positioning correctors (RTX) and then reduced the data to MLLW using the above mentioned VDatum separation model.This survey does meet charting specifications and is adequate to supersede prior data.The POS data has an error that is currently being investigated.There is no Vertical Control requirement for this project. However, the vertical control method used for this survey was VDatum SEP model "2018_BOEM_NAD83-MLLW_NSPMVD_500m2_EPSG6344" and the vertical datum for this project is MLLW. The vertical uncertainty for this model is 12.5cm.Emma Hickerson requested XYZ and GeoTiff products for each sheet. Her intent was to have the data imported into the FGNMS GIS database.2019-02-08NOAAErin DiurbaPacific Hydrographic BranchTeam LeadErin Diurba10000TexasS-K949-MIST-18Mean Lower Low Water2019-02-08Projected UTM 15VDatumD00256World Geodetic System (WGS) 1984ClaypileWestern Gulf of MexicoMISTTeledyne RESONSeabat T20-PMBES2018-10-122018-10-13