Illegal division by zero at .\bin\pdkc.pl line 536.

Running .\bin\pdkc.pl at Wed Aug 26 09:02:40 2015 on host ephyra-vm2

Command line:
.\bin\pdkc.pl -rov vnta -dive 1615

.\bin\pdkc.pl: Getting Expedition object for diveno = 1615 and rname = vnta
set_expd(): rov = vnta, diveno = 1615
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 = 1615 AND RovName = 'vnta'

RS->Fields(0)->Value= 1808

RS->Fields(1)->Value= 928350780

RS->Fields(2)->Value= 928360740

RS->Fields(3)->Value= 6/2/1999 7:13:00 PM

RS->Fields(4)->Value= 6/2/1999 9:59:00 PM

set_expd(): $self->{EndDDD} = 153
set_expd(): $self->{StartEsecs} = 928349580
set_expd(): $self->{EndEsecs} = 928361940
set_expd(): $self->{EndDtg} = 6/2/1999 9:59:00 PM
_readLogr(): Reading videologr data from 1999153videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 928349580 & 928361940
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 928361944, self->{EndEsecs} = 928361940
_readLogr(): #LOGHOST_SYSTEM_UTC = 1233
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 928349588
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 928361934
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 928349588
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 928361934
refineStartAndEndEsecs(): numMinBack = 22, numMinForward = 22
refineStartAndEndEsecs(): Refined StartEsecs = 928349460, Refined EndEsecs = 928362060 
_readLogr(): Reading videologr data from 1999153videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 928349460 & 928362060
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 928362064, self->{EndEsecs} = 928362060
_readLogr(): #LOGHOST_SYSTEM_UTC = 1257
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 928349468
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 928362054
rovnavCTDO(): calcUTM = 0
rovnavCTDO(): getRaw = 1
rovNav(): 1, getRaw = 1
rovNav(): 2, calcUTM = 0
rovNav(): calcUTM = 0
rovNav(): DDD = 153 (looping to 153) 
rovNav(): \\atlas\RovNavEdit\1999\vnta\nav1999153vnta.txt and \\atlas\RovNavEdit\1999\vnta\nav1999153vntaedited.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   928360500 & 928352430
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, calcUTM = 0
rovNav(): 2, doNotRefineStartEnd = 1
rovNav(): calcUTM = 0
rovNav(): DDD = 153 (looping to 153) 
rovNav(): \\atlas\RovNavEdit\1999\vnta\nav1999153vnta.txt and \\atlas\RovNavEdit\1999\vnta\nav1999153vntaedited.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.pl: -------------------------------------------------------------------------------

Position subsampling set to 1