FW: Corrections to latitudes/longitudes in zone.tab
Andy McDonald is not on the time zone mailing list; direct replies appropriately. --ado -----Original Message----- From: Andy McDonald [mailto:andy@stemhaus.com] Sent: Tuesday, May 23, 2006 12:28 AM To: tz@lecserver.nci.nih.gov Subject: Corrections to latitudes/longitudes in zone.tab Hi, A very very minor point, but I've run across a few inaccurate latitudes/longitudes in tz's zone.tab (2006g and earlier): Corrected lat/long zone.tab lat/long America/Argentina/Tucuman: -0265000, -0651300 -0312400, -0641100 America/Inuvik: +0682200, -1334400 +0682500, -1133000 America/Rainy_River: +0484300, -0943400 +0484300, -0942900 America/Rankin_Inlet +0624800, -0920500 +0624500, -0921000 America/Scoresbysund: +0703000, -0215800 +0703000, -0221500 (Tucuman's latitude and longitude in zone.tab are those of America/Argentina/Cordoba.) The corrected values come from playing with my Firefox extension (http://www.stemhaus.com/firefox/foxclocks/) and Google Earth, and are of course entirely subjective. Regards, Andy McDonald
From: Andy McDonald [mailto:andy@stemhaus.com] A very very minor point, but I've run across a few inaccurate latitudes/longitudes in tz's zone.tab (2006g and earlier): Corrected lat/long zone.tab lat/long America/Argentina/Tucuman: -0265000, -0651300 -0312400, -0641100 America/Inuvik: +0682200, -1334400 +0682500, -1133000 America/Rainy_River: +0484300, -0943400 +0484300, -0942900 America/Rankin_Inlet +0624800, -0920500 +0624500, -0921000 America/Scoresbysund: +0703000, -0215800 +0703000, -0221500
From the GEOnet Names Server http://earth-info.nga.mil/gns/html/cntry_files.html From the Argentina file: Tucumán, populated place, type "PPLA: seat of a first-order administrative division", lat lon: -26:49:00, -065:13:00 From the Greenland file: Scoresbysund, populated place, type PPL: +70:29:00, -021:58:00 From the Canada file: Inuvik, populated place, type PPL: +68:21:00, -133:42:00 Rainy River, populated place, type PPL: +48:43:00, -094:34:00 Rankin Inlet, populated place, type PPL: +62:49:00, -092:05:00
I carefully selected the populated place locations, not locations of other features. Mr. McDonald seems to bring us much closer to the values from the GEOnet database. Which source is the most reliable? I'd suggest: use the GEOnet data. Local mean times (hh:mm:ss), based on the GEOnet data: Tucumán: -04:20:52 Scoresbysund: -01:27:52 Inuvik: -08:54:48 Rainy River: -06:18:16 Rankin Inlet: -06:08:20 Oscar van Vlijmen
Thank you both for your corrections. Some of these are my transcription errors from Shanks, but some are errata in Shanks. I'm inclined to take the GEOnet coordinates, since it's a source; except for Canadian locations, where The Atlas of Canada <http://atlas.nrcan.gc.ca/site/english/> is probably more authoritative. So in zone.tab we'd have: AR -2649-06513 America/Argentina/Tucuman Tucuman (TM) CA +624900-0920459 America/Rankin_Inlet Central Time - central Nunavut CA +4843-09434 America/Rainy_River Central Time - Rainy River & Fort Frances, Ontario CA +682059-1334300 America/Inuvik Mountain Time - west Northwest Territor\ ies GL +7029-02158 America/Scoresbysund Scoresbysund / Ittoqqortoormiit with the following UTC offsets during LMT: -01:27:52 America/Scoresbysund -04:20:52 America/Argentina/Tucuman [this is the same as before] -06:08:20 America/Rankin_Inlet -06:18:16 America/Rainy_River -08:54:52 America/Inuvik
participants (3)
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Olson, Arthur David (NIH/NCI) [E] -
Oscar van Vlijmen -
Paul Eggert