_readLogr(): Cannot open \\atlas\Shipdata\logger\2025\rcsn\2025253datavislogr.dat.gz
_readLogr(): Cannot open \\atlas\Shipdata\logger\2025\rcsn\2025253datavislogr.dat.gz
Illegal division by zero at bin\pdkc_perseus.pl line 540.

Running bin\pdkc_perseus.pl at Sat Nov  8 03:00:03 2025 on host draco

Command line:
bin\pdkc_perseus.pl -rov vnta -dive 4684

bin\pdkc_perseus.pl: Getting Expedition object for diveno = 4684 and rname = vnta
set_expd(): rov = vnta, diveno = 4684
set_expd(): Executing sql:
SELECT ExpeditionID_FK, DateDiff(ss, '01/01/70', DiveStartDtg), DateDiff(ss, '01/01/70', DiveEndDtg), DiveStartDtg, DiveEndDtg FROM Dive WHERE DiveNumber = 4684 AND RovName = 'vnta'

RS->Fields(0)->Value= 8806

RS->Fields(1)->Value= 1757520622

RS->Fields(2)->Value= 1757540662

RS->Fields(3)->Value= 9/10/2025 4:10:22 PM

RS->Fields(4)->Value= 9/10/2025 9:44:22 PM

set_expd(): $self->{EndDDD} = 253
set_expd(): $self->{StartEsecs} = 1757519422
set_expd(): $self->{EndEsecs} = 1757541862
set_expd(): $self->{EndDtg} = 9/10/2025 9:44:22 PM
_readLogr(): Reading videologr data from 2025253datavislogr.dat.gz. 
_readLogr(): Expedition start & stop times are 1757519422 & 1757541862
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 
refineStartAndEndEsecs(): numMinBack = 22, numMinForward = 22
refineStartAndEndEsecs(): Refined StartEsecs = 1757519302, Refined EndEsecs = 1757541982 
_readLogr(): Reading videologr data from 2025253datavislogr.dat.gz. 
_readLogr(): Expedition start & stop times are 1757519302 & 1757541982
rovnavCTDO(): calcUTM = 0
rovnavCTDO(): getRaw = 1
rovNav(): 1, calcUTM = 0
rovNav(): 2, getRaw = 1
rovNav(): calcUTM = 0
rovNav(): DDD = 253 (looping to 253) 
rovNav(): \\atlas\RovNavEdit\2025\vnta\nav2025253vnta.txt and \\atlas\RovNavEdit\2025\vnta\nav2025253vntaedited.txt does not exist.  Skipping this file...
-1 in tList
-1 in {self->{rovT}}
-1 in {self->{rovH}}
rovCTDO(): ROV CTDO start & stop times are   1757521290 & 1757534640
rovNavCTDO(): Looking up ROVCTDO data ('.'found, 'X' exceeds max iter.):

rovGDCListRefs(): dMedian = 
rovGDCListRefs(): dStats->sample_range = 
rovGDCListRefs(): rovDepth (paroscientific) range is less than 1.  Using rovctd calculated depth
rovNav(): 1, doNotRefineStartEnd = 1
rovNav(): 2, calcUTM = 0
rovNav(): calcUTM = 0
rovNav(): DDD = 253 (looping to 253) 
rovNav(): \\atlas\RovNavEdit\2025\vnta\nav2025253vnta.txt and \\atlas\RovNavEdit\2025\vnta\nav2025253vntaedited.txt does not exist.  Skipping this file...
-1 in tList
-1 in {self->{rovT}}
-1 in {self->{rovH}}
rovGDCListRefs(): dMedian = 
rovGDCListRefs(): dStats->sample_range = 
rovGDCListRefs(): rovDepth (paroscientific) range is less than 1.  Using rovctd calculated depth

bin\pdkc_perseus.pl: -------------------------------------------------------------------------------

Position subsampling set to 1