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

Running .\bin\pdkc.pl at Wed Aug 26 08:41:06 2015 on host ephyra-vm2

Command line:
.\bin\pdkc.pl -rov vnta -dive 1440

.\bin\pdkc.pl: Getting Expedition object for diveno = 1440 and rname = vnta
set_expd(): rov = vnta, diveno = 1440
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 = 1440 AND RovName = 'vnta'

RS->Fields(0)->Value= 1656

RS->Fields(1)->Value= 901036905

RS->Fields(2)->Value= 901058985

RS->Fields(3)->Value= 7/21/1998 4:01:45 PM

RS->Fields(4)->Value= 7/21/1998 10:09:45 PM

set_expd(): $self->{EndDDD} = 202
set_expd(): $self->{StartEsecs} = 901035705
set_expd(): $self->{EndEsecs} = 901060185
set_expd(): $self->{EndDtg} = 7/21/1998 10:09:45 PM
_readLogr(): Reading videologr data from 1998202videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 901035705 & 901060185
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 901060195, self->{EndEsecs} = 901060185
_readLogr(): #LOGHOST_SYSTEM_UTC = 2445
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 901035709
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 901060185
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 901035709
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 901060185
refineStartAndEndEsecs(): numMinBack = 22, numMinForward = 22
refineStartAndEndEsecs(): Refined StartEsecs = 901035585, Refined EndEsecs = 901060305 
_readLogr(): Reading videologr data from 1998202videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 901035585 & 901060305
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 901060315, self->{EndEsecs} = 901060305
_readLogr(): #LOGHOST_SYSTEM_UTC = 2469
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 901035589
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 901060305
rovnavCTDO(): getRaw = 1
rovnavCTDO(): calcUTM = 0
rovNav(): 1, getRaw = 1
rovNav(): 2, calcUTM = 0
rovNav(): calcUTM = 0
rovNav(): DDD = 202 (looping to 202) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998202vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998202vntaedited.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   901044765 & 901040055
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 = 202 (looping to 202) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998202vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998202vntaedited.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