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

Running .\bin\pdkc.pl at Wed Aug 26 11:19:10 2015 on host ephyra-vm2

Command line:
.\bin\pdkc.pl -rov vnta -dive 2111

.\bin\pdkc.pl: Getting Expedition object for diveno = 2111 and rname = vnta
set_expd(): rov = vnta, diveno = 2111
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 = 2111 AND RovName = 'vnta'

RS->Fields(0)->Value= 2345

RS->Fields(1)->Value= 1013102280

RS->Fields(2)->Value= 1013122440

RS->Fields(3)->Value= 2/7/2002 5:18:00 PM

RS->Fields(4)->Value= 2/7/2002 10:54:00 PM

set_expd(): $self->{EndDDD} = 038
set_expd(): $self->{StartEsecs} = 1013101080
set_expd(): $self->{EndEsecs} = 1013123640
set_expd(): $self->{EndDtg} = 2/7/2002 10:54:00 PM
_readLogr(): Reading videologr data from 2002038datavislogr.dat.gz. 
_readLogr(): Expedition start & stop times are 1013101080 & 1013123640
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 1013123641, self->{EndEsecs} = 1013123640
_readLogr(): #LOGHOST_SYSTEM_UTC = 2234
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 1013101086
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 1013123631
set_expd(): Calling _refineStartAndEndEsecs...
refineStartAndEndEsecs(): LOGHOST_SYSTEM_UTC[0] = 1013101086
refineStartAndEndEsecs(): $LOGHOST_SYSTEM_UTC[end] = 1013123631
refineStartAndEndEsecs(): setting StartEsecs to 1013101080
refineStartAndEndEsecs(): setting EndEsecs to 1013101246
refineStartAndEndEsecs(): numMinBack = 19.2333333333333, numMinForward = 9.48333333333333
refineStartAndEndEsecs(): Refined StartEsecs = 1013101126, Refined EndEsecs = 1013123009 
_readLogr(): Reading videologr data from 2002038datavislogr.dat.gz. 
_readLogr(): Expedition start & stop times are 1013101126 & 1013123009
_readLogr(): Flushing variable names:
_readLogr(): esecs of file line[0] = 1013123019, self->{EndEsecs} = 1013123009
_readLogr(): #LOGHOST_SYSTEM_UTC = 2167
_readLogr(): $LOGHOST_SYSTEM_UTC[beg] = 1013101136
_readLogr(): $LOGHOST_SYSTEM_UTC[end] = 1013123009
rovnavCTDO(): getRaw = 1
rovnavCTDO(): calcUTM = 0
rovNav(): 1, calcUTM = 0
rovNav(): 2, getRaw = 1
rovNav(): calcUTM = 0
rovNav(): DDD = 038 (looping to 038) 
Does file exist?: \\atlas\RovNavEdit\2002\vnta\nav2002038vntaedited.txt
   yes.
EXPD.pm: editNav flag = 
rovNav(): Opening ROV nav data from \\atlas\RovNavEdit\2002\vnta\nav2002038vnta.txt
esecs, east, north, lat, lon, head, pres
rovNav(): 038: -1  in tList after reading from \\atlas\RovNavEdit\2002\vnta\nav2002038vnta.txt
-1 in tList
-1 in {self->{rovT}}
-1 in {self->{rovH}}
rovCTDO(): ROV CTDO start & stop times are   1013106690 & 1013120940
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 = 038 (looping to 038) 
Does file exist?: \\atlas\RovNavEdit\2002\vnta\nav2002038vntaedited.txt
   yes.
EXPD.pm: editNav flag = 
rovNav(): Opening ROV nav data from \\atlas\RovNavEdit\2002\vnta\nav2002038vntaedited.txt
esecs, east, north, lat, lon, head, pres
rovNav(): 038: -1  in tList after reading from \\atlas\RovNavEdit\2002\vnta\nav2002038vntaedited.txt
-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