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

Running .\bin\pdkc.pl at Thu Aug 27 10:02:49 2015 on host ephyra-vm2

Command line:
.\bin\pdkc.pl -rov vnta -dive 3277

.\bin\pdkc.pl: Getting Expedition object for diveno = 3277 and rname = vnta
set_expd(): rov = vnta, diveno = 3277
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 = 3277 AND RovName = 'vnta'

RS->Fields(0)->Value= 3940

RS->Fields(1)->Value= 1222882828

RS->Fields(2)->Value= 1222885730

RS->Fields(3)->Value= 10/1/2008 5:40:28 PM

RS->Fields(4)->Value= 10/1/2008 6:28:50 PM

set_expd(): $self->{EndDDD} = 275
set_expd(): $self->{StartEsecs} = 1222881628
set_expd(): $self->{EndEsecs} = 1222886930
set_expd(): $self->{EndDtg} = 10/1/2008 6:28:50 PM
_readLogr(): Reading videologr data from 2008275datavislogr.dat.gz. 
_readLogr(): Expedition start & stop times are 1222881628 & 1222886930
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 1222886931, self->{EndEsecs} = 1222886930
_readLogr(): #LOGHOST_SYSTEM_UTC = 528
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 1222881635
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 1222886921
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 1222881635
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 1222886921
refineStartAndEndEsecs(): setting StartEsecs to 1222881628
refineStartAndEndEsecs(): setting EndEsecs to 1222882986
refineStartAndEndEsecs(): numMinBack = -0.633333333333333, numMinForward = 14.6666666666667
refineStartAndEndEsecs(): Refined StartEsecs = 1222882866, Refined EndEsecs = 1222886610 
_readLogr(): Reading videologr data from 2008275datavislogr.dat.gz. 
_readLogr(): Expedition start & stop times are 1222882866 & 1222886610
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 1222886620, self->{EndEsecs} = 1222886610
_readLogr(): #LOGHOST_SYSTEM_UTC = 373
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 1222882876
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 1222886610
rovnavCTDO(): getRaw = 1
rovnavCTDO(): calcUTM = 0
rovNav(): 1, getRaw = 1
rovNav(): 2, calcUTM = 0
rovNav(): calcUTM = 0
rovNav(): DDD = 275 (looping to 275) 
rovNav(): \\atlas\RovNavEdit\2008\vnta\nav2008275vnta.txt and \\atlas\RovNavEdit\2008\vnta\nav2008275vntaedited.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   1222885680 & 1222885305
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 = 275 (looping to 275) 
rovNav(): \\atlas\RovNavEdit\2008\vnta\nav2008275vnta.txt and \\atlas\RovNavEdit\2008\vnta\nav2008275vntaedited.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