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

Running .\bin\pdkc.pl at Wed Aug 26 08:36:40 2015 on host ephyra-vm2

Command line:
.\bin\pdkc.pl -rov vnta -dive 1420

.\bin\pdkc.pl: Getting Expedition object for diveno = 1420 and rname = vnta
set_expd(): rov = vnta, diveno = 1420
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 = 1420 AND RovName = 'vnta'

RS->Fields(0)->Value= 1639

RS->Fields(1)->Value= 897605940

RS->Fields(2)->Value= 897614850

RS->Fields(3)->Value= 6/11/1998 10:59:00 PM

RS->Fields(4)->Value= 6/12/1998 1:27:30 AM

set_expd(): $self->{EndDDD} = 163
set_expd(): $self->{StartEsecs} = 897604740
set_expd(): $self->{EndEsecs} = 897616050
set_expd(): $self->{EndDtg} = 6/12/1998 1:27:30 AM
_readLogr(): Reading videologr data from 1998162videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 897604740 & 897616050
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 897609594, self->{EndEsecs} = 897616050
_readLogr(): Calling _readAnotherLogr() with nextDDD = 163
_readAnotherLogr(): DDD = 163
_readAnotherLogr(): Reading logr data from 1998163videologr.dat.gz. 
_readAnotherLogr(): Expedition start & stop times are 897604740 & 897616050
_readAnotherLogr(): esecs of file line[0] = 897616059, self->{EndEsecs} = 897616050
_readLogr(): #LOGHOST_SYSTEM_UTC = 1105
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 897604742
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 897616049
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 897604742
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 897616049
refineStartAndEndEsecs(): numMinBack = 22, numMinForward = 22
refineStartAndEndEsecs(): Refined StartEsecs = 897604620, Refined EndEsecs = 897616170 
_readLogr(): Reading videologr data from 1998162videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 897604620 & 897616170
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 897609594, self->{EndEsecs} = 897616170
_readLogr(): Calling _readAnotherLogr() with nextDDD = 163
_readAnotherLogr(): DDD = 163
_readAnotherLogr(): Reading logr data from 1998163videologr.dat.gz. 
_readAnotherLogr(): Expedition start & stop times are 897604620 & 897616170
_readAnotherLogr(): esecs of file line[0] = 897616180, self->{EndEsecs} = 897616170
_readLogr(): #LOGHOST_SYSTEM_UTC = 1129
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 897604622
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 897616169
rovnavCTDO(): getRaw = 1
rovnavCTDO(): calcUTM = 0
rovNav(): 1, calcUTM = 0
rovNav(): 2, getRaw = 1
rovNav(): calcUTM = 0
rovNav(): DDD = 162 (looping to 163) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998162vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998162vntaedited.txt does not exist.  Skipping this file...
rovNav(): DDD = 163 (looping to 163) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998163vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998163vntaedited.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   897610455 & 897606300
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 = 162 (looping to 163) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998162vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998162vntaedited.txt does not exist.  Skipping this file...
rovNav(): DDD = 163 (looping to 163) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998163vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998163vntaedited.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