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

Running .\bin\pdkc.pl at Wed Aug 26 08:41:17 2015 on host ephyra-vm2

Command line:
.\bin\pdkc.pl -rov vnta -dive 1442

.\bin\pdkc.pl: Getting Expedition object for diveno = 1442 and rname = vnta
set_expd(): rov = vnta, diveno = 1442
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 = 1442 AND RovName = 'vnta'

RS->Fields(0)->Value= 1658

RS->Fields(1)->Value= 901222800

RS->Fields(2)->Value= 901227600

RS->Fields(3)->Value= 7/23/1998 7:40:00 PM

RS->Fields(4)->Value= 7/23/1998 9:00:00 PM

set_expd(): $self->{EndDDD} = 204
set_expd(): $self->{StartEsecs} = 901221600
set_expd(): $self->{EndEsecs} = 901228800
set_expd(): $self->{EndDtg} = 7/23/1998 9:00:00 PM
_readLogr(): Reading videologr data from 1998204videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 901221600 & 901228800
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 901228801, self->{EndEsecs} = 901228800
_readLogr(): #LOGHOST_SYSTEM_UTC = 718
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 901221604
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 901228791
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 901221604
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 901228791
refineStartAndEndEsecs(): numMinBack = 22, numMinForward = 22
refineStartAndEndEsecs(): Refined StartEsecs = 901221480, Refined EndEsecs = 901228920 
_readLogr(): Reading videologr data from 1998204videologr.dat.gz. 
_readLogr(): Expedition start & stop times are 901221480 & 901228920
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 901228921, self->{EndEsecs} = 901228920
_readLogr(): #LOGHOST_SYSTEM_UTC = 742
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 901221484
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 901228911
rovnavCTDO(): calcUTM = 0
rovnavCTDO(): getRaw = 1
rovNav(): 1, getRaw = 1
rovNav(): 2, calcUTM = 0
rovNav(): calcUTM = 0
rovNav(): DDD = 204 (looping to 204) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998204vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998204vntaedited.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   901226700 & 901227480
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 = 204 (looping to 204) 
rovNav(): \\atlas\RovNavEdit\1998\vnta\nav1998204vnta.txt and \\atlas\RovNavEdit\1998\vnta\nav1998204vntaedited.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