System Requirements

  • Windows 10 64-bit
  • 8GB RAM or more
  • Free disk space: 2GB (but depends on number and size of surveys)
  • CPU: Minimum Intel I-5 2 Ghz or equivalent, Intel Core I-7 recommended (especially with SQ and larger surveys)

Release Notes

December 21, 2021

Additional support for Sea Quest 2

November 11, 2021

Support Sea Quest 2 differences in zeroing the depth sensor.

October 12, 2021


  • This release improves several features,
  • supports the new SQ2 mag responses, and
  • the Sentinel 2 base station import allows filtering by signal strength.

Profile Plot

  • Initialize visibility of series when loading.


  • Filter by date for base station and AUV data.
  • Don’t import readings to a significant gap in the survey
  • Dialogs are topmost and modal.
  • Add signal strength filter for base station import.
  • Default file type for import set to all log file types, instead of just the intermagnet observatory format.

Survey Lines

  • Keep survey line list from restoring default sort order after an edit.

Geo Plot

  • Calculate GPS time offset relative to mag clock so it has the same sign as shown on sync warnings

Mag support

  • Handle new SQ-2 string


  • Format marker list, change icons for expander and visibility buttons.


  • Log BOB version number to Alert.log

Prior Releases

  • Show signal strength in profile plot
  • Get user consent before upgrading BOB
  • Allow user to enter fraction of a second into marker time in marker dialog.
  • Ok button in preferences closes the dialog now
  • Import Sentinel-2 data.

  • Fix incomplete drawing of path when selecting a survey line in some cases.
  • Improve placement of markers near edges of profile plot.


  • Improve detecting when mag is sampling
  • Stop GPS readings from being logged in newly opened survey before we start sampling.
  • More support for Vector mags
  • UI formatting improved


  • Zoom to mouse point instead of center of screen
  • Show coords where mouse is.
  • More accurate placement of markers.

Mag Profile Plot

  • Sometimes scale was wrong
  • Fix drawing error when crossing midnight.

Log Table

  • Allow user to reorder columns.


  • ¬†Notifications are saved to alerts.log now


  • Individual mag positions are exported for longitudinal gradiometers.
  • Export failed for surveys that cross midnight.