[talk-ph] Ultimate mapping challenge: marking the Station Balanacan in OSM
maning sambale
emmanuel.sambale at gmail.com
Fri Aug 12 13:10:28 BST 2011
Dear Ed,
We don't have to convert anymore. If anyone wants the file of all the
geodetic markers, so they can visit them, PM me. ;)
On Fri, Aug 12, 2011 at 8:03 PM, Ed Garcia <eppgarcia at gmail.com> wrote:
> some years ago I tried locating LAG2 when I frequented the Caliraya area,
> but could not find it. My old GPS that time (Magelan GPS315, with position
> error of about 14 meters) kept on pointing me to an area several meters
> north of the junction where I could not find any possible markers.
>
> Maybe my GPS was not accurate enough, or maybe the data I was using was
> converted wrongly (came from PRS92 and recalculated to wgs84), or the marker
> is gone, or the brass rod is indeed right at the junction of the two roads.
>
> Anyway, here is the history of the coordinates ...
>
> Below are the original values of the coordinates in PRS92. To convert it to
> WGS84, I first manually inputted them into GPS Utility which was set to
> Luzon Datum while I was keying-in the values (no PRS92 on GPS Utility back
> then). Then, I changed the datum on GPS Utility which automatically
> recalculated the values into WGS84.
>
> This was based on what I have been told, that the difference between PRS92
> and Luzon datum is very very minimal. Btw, the difference between Luzon and
> WGS84 is over a hundred meters.
>
> Perhaps Maning can do some recalculations based on the original PRS92?
>
> H SOFTWARE NAME & VERSION
> I GPSU 4.03 REGISTERED to 'sloovey'
> S DateFormat=yy-mm-dd
> S Timezone=8
> S Units=M,M
> S SymbolSet=0
>
> H R DATUM
> M E Luzon Philippines 048 -6.9400000E+01 -3.7264640E-05 -133 -77 -51
>
> H COORDINATE SYSTEM
> U LAT LON DMS
>
> F ID---- Latitude Longitude T O Alt(m) Comment
> W ABR1 N17°36'16.84" E120°36'49.89" I E 0.0 ABRA
> W ABR2 N17°34'22.27" E120°54'09.10" I E 0.0 ABRA
> W ARA1 N15°45'31.27" E121°33'42.42" I E 0.0 AURORA
> W ARA2 N16°08'41.60" E121°57'21.90" I E 0.0 AURORA
> W ARA3 N16°25'00.80" E122°14'17.45" I E 0.0 AURORA
> W BGT1 N16°24'05.20" E120°38'41.85" I E 0.0 BENGUET
> W BGT2 N16°35'55.95" E120°45'39.28" I E 0.0 BENGUET
> W BGT3 N16°36'03.38" E120°45'41.25" I E 0.0 BENGUET
> W BLN1 N14°56'32.01" E120°52'47.62" I E 0.0 BULACAN
> W BLN2 N14°50'53.22" E120°45'48.04" I E 0.0 BULACAN
> W BLN3 N14°54'20.77" E121°02'29.98" I E 0.0 BULACAN
> W BLN4 N15°11'29.35" E121°02'34.71" I E 0.0 BULACAN
> W BTG1 N13°49'13.21" E120°57'20.62" I E 0.0 BATANGAS
> W BTG2 N14°05'02.10" E120°37'09.73" I E 0.0 BATANGAS
> W BTG3 N13°40'30.09" E121°26'59.60" I E 0.0 BATANGAS
> W BTG4 N13°32'08.42" E121°05'50.70" I E 0.0 BATANGAS
> W BTG5 N13°38'13.43" E121°02'04.03" I E 0.0 BATANGAS
> W BTG6 N13°38'13.98" E121°11'38.09" I E 0.0 BATANGAS
> W BTG7 N13°37'24.68" E121°04'51.35" I E 0.0 BATANGAS
> W BTG8 N13°44'35.19" E120°56'46.59" I E 0.0 BATANGAS
> W BTN1 N14°35'06.85" E120°34'28.59" I E 0.0 BATAAN
> W BTN2 N14°22'52.15" E120°34'30.50" I E 0.0 BATAAN
> W BTN3 N14°26'37.79" E120°29'50.07" I E 0.0 BATAAN
> W CVT1 N14°16'57.90" E120°59'44.17" I E 0.0 CAVITE
> W CVT2 N14°16'58.43" E120°51'49.28" I E 0.0 CAVITE
> W IFG1 N16°55'19.86" E121°03'00.82" I E 0.0 IFUGAO
> W ILN1 N18°23'47.43" E120°35'44.45" I E 0.0 ILOCOS NORTE
> W ILN2 N17°58'11.10" E120°30'45.59" I E 0.0 ILOCOS NORTE
> W ILN3 N18°05'10.64" E120°48'48.30" I E 0.0 ILOCOS NORTE
> W ILS1 N17°35'53.36" E120°23'23.21" I E 0.0 ILOCOS SUR
> W ILS2 N17°07'58.01" E120°26'32.72" I E 0.0 ILOCOS SUR
> W ILS3 N16°58'50.36" E120°44'13.31" I E 0.0 ILOCOS SUR
> W LAG1 N14°15'51.25" E121°23'48.53" I E 0.0 LAGUNA
> W LAG2 N14°26'12.62" E121°26'52.34" I E 0.0 LAGUNA
> W LAG3 N14°11'00.92" E121°08'46.49" I E 0.0 LAGUNA
> W LAG4 N14°20'04.08" E121°03'10.64" I E 0.0 LAGUNA
> W LAG5 N14°20'37.90" E121°02'54.05" I E 0.0 LAGUNA
> W LUN1 N16°35'02.94" E120°18'11.21" I E 0.0 LA UNION
> W LUN2 N16°21'37.74" E120°21'36.44" I E 0.0 LA UNION
> W LUN3 N16°15'37.22" E120°21'58.28" I E 0.0 LA UNION
> W MMA0 N14°38'12.09" E121°02'30.07" I E 0.0 MANILA
> W MMA1 N14°32'19.06" E121°02'18.24" I E 0.0 MANILA
> W MMA5 N14°39'28.40" E121°04'06.26" I E 0.0 MANILA
> W MMA6 N14°35'59.16" E120°58'18.25" I E 0.0 MANILA
> W MPV1 N17°05'39.22" E120°58'03.60" I E 0.0 MOUNTAIN PROVINCE
> W PMG1 N15°08'30.22" E120°37'54.75" I E 0.0 PAMPANGA
> W PNG2 N16°23'41.54" E119°52'49.35" I E 0.0 PANGASINAN
> W PNG3 N16°03'53.52" E120°06'23.69" I E 0.0 PANGASINAN
> W PNG4 N15°54'46.30" E120°38'25.41" I E 0.0 PANGASINAN
> W PNG5 N15°52'09.25" E120°15'08.49" I E 0.0 PANGASINAN
> W PNG6 N16°02'45.87" E120°19'39.03" I E 0.0 PANGASINAN
> W RZL N14°29'02.31" E121°11'11.83" I E 0.0 RIZAL
> W RZL2 N14°27'53.61" E121°11'46.73" I E 0.0 RIZAL
> W KAY2 N17°24'33.60" E121°26'31.83" I E 0.0 KALINGA APAYAO
> W KAY3 N18°14'23.89" E121°22'08.80" I E 0.0 KALINGA APAYAO
> W QZN1 N14°06'12.00" E122°00'50.11" I E 0.0 QUEZON
> W QZN2 N14°42'13.15" E122°19'34.67" I E 0.0 QUEZON
> W QZN3 N14°55'36.18" E121°48'19.47" I E 0.0 QUEZON
> W QZN4 N14°37'59.74" E121°56'19.53" I E 0.0 QUEZON
> W QZN5 N14°39'59.30" E121°36'14.27" I E 0.0 QUEZON
> W QZN6 N14°11'22.51" E121°43'38.33" I E 0.0 QUEZON
> W QZN7 N15°12'45.44" E121°24'49.04" I E 0.0 QUEZON
> W QZN8 N13°34'13.84" E122°33'55.45" I E 0.0 QUEZON
> W QZN9 N13°47'14.78" E122°03'32.98" I E 0.0 QUEZON
> W QZN10 N13°35'41.55" E122°19'25.74" I E 0.0 QUEZON
> W QZN11 N13°31'34.65" E122°24'18.23" I E 0.0
> W QZN12 N13°44'25.08" E122°27'50.89" I E 0.0 QUEZON
> W QZN13 N13°09'50.97" E122°35'52.76" I E 0.0 QUEZON
> W PNG7 N16°04'27.89" E120°20'03.20" I E 0.0 PANGASINAN
> W TRC1 N15°28'44.14" E120°35'52.67" I E 0.0 TARLAC
> W TRC2 N15°19'28.81" E120°25'27.63" I E 0.0 TARLAC
> W TRC3 N15°36'39.83" E120°22'56.95" I E 0.0 TARLAC
> W ZBS1 N15°24'38.67" E119°57'04.12" I E 0.0 ZAMBALES
> W ZBS2 N14°59'42.77" E120°07'09.53" I E 0.0 ZAMBALES
> W ZBS3 N15°48'26.09" E119°55'24.14" I E 0.0 ZAMBALES
> W ZBS4 N15°03'43.22" E120°03'37.96" I E 0.0 ZAMBALES
> W ZBS5 N15°00'57.91" E120°03'50.53" I E 0.0 ZAMBALES
> W ZBS6 N14°57'11.75" E120°03'27.87" I E 0.0 ZAMBALES
> W ZBS7 N14°56'45.73" E120°03'20.04" I E 0.0 ZAMBALES
>
>
>
>
> On Fri, Aug 12, 2011 at 6:50 PM, tutubi <tutubi at backpackingphilippines.com>
> wrote:
>>
>> hmmm...i always pass by unknowingly near LAG2 marker. will try to locate
>> it exactly. there's a nearby gas station and the raymond bus terminal there
>> near Famy/Siniloan along manila east road
>>
>> is it a landmark or just the junction of the two roads?
>>
>> On Fri, Aug 12, 2011 at 4:12 PM, maning sambale
>> <emmanuel.sambale at gmail.com> wrote:
>>>
>>> Thanks ed,
>>>
>>> Has anyone from waypoints or osm actually visited this reference point?
>>>
>>> I actually found a few of these markers.
>>>
>>> Example:
>>> http://www.openstreetmap.org/browse/node/1287703706
>>>
>>> My handheld GPS is off by 6.92 meters from the published PRS92
>>> coordinates.
>>>
>>> --
>>> ---
>>> I explore, therefore I blog.
>>>
>>> http://www.backpackingphilippines.com
>>>
>>
>> _______________________________________________
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>> talk-ph at openstreetmap.org
>> http://lists.openstreetmap.org/listinfo/talk-ph
>>
>
>
>
> --
> website administrator:
> - www.waypoints.ph
> - reeflife.eppgarcia.com
>
> PADI Divemaster #491048
>
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>
>
--
cheers,
maning
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"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
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