Difference between revisions of "2012-03-08 47 -40"
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The first point I wanted to test was in the [[graticule]] 47,-15 - that was the time I quickly learned that our first possibility was in [[graticule]] 47,-40. So I inserted a pilot waypoint "HASH2" into our flight management computer ([http://en.wikipedia.org/wiki/Flight_management_system FMS]) to check our progress enroute. | The first point I wanted to test was in the [[graticule]] 47,-15 - that was the time I quickly learned that our first possibility was in [[graticule]] 47,-40. So I inserted a pilot waypoint "HASH2" into our flight management computer ([http://en.wikipedia.org/wiki/Flight_management_system FMS]) to check our progress enroute. | ||
| − | At the time of overflying the waypoint we slightly navigated off the track F to get get as close as possible | + | At the time of overflying the waypoint we slightly navigated off the track F to get get as close as possible. The commander took care of the flying as I took the proving photographs and the group photo. |
| + | Additional Information: On the NAT system, you can go off track at a maximum of 2nm to the right, the point was within 1nm, we were flying 1nm right of the track anyway according to procedures so it did not take a lot to overfly the point. | ||
On the flight back, I did not chase any geohashes, as I wanted to check on my first geohash first. Did I do everything correct? | On the flight back, I did not chase any geohashes, as I wanted to check on my first geohash first. Did I do everything correct? | ||
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Image:P1060021-LR 800.jpg | My first try: "HASH" in the [[graticule]] 48,-15 | Image:P1060021-LR 800.jpg | My first try: "HASH" in the [[graticule]] 48,-15 | ||
Image:P1060024-LR 800.jpg | We are here, custom waypoint "HASH2" with a lateral distance of 0.0nm and the GPS (left) showing the coordinates. | Image:P1060024-LR 800.jpg | We are here, custom waypoint "HASH2" with a lateral distance of 0.0nm and the GPS (left) showing the coordinates. | ||
| − | Image:P1060027-LR 800.jpg | | + | Image:P1060027-LR 800.jpg | We did it! |
</gallery> | </gallery> | ||
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[[Category:Not reached - Technology]] | [[Category:Not reached - Technology]] | ||
| + | {{location|XI}} | ||
Latest revision as of 13:48, 19 May 2019
| Thu 8 Mar 2012 in 47,-40: 47.4130725, -40.3416416 geohashing.info google osm bing/os kml crox |
Location
Somewhere over the North Atlantic, (almost) on track F of the NAT on this day.
Participants
Me (User:wolkenjaeger), 11 other crew members and 178 passengers. Well, at the end only 4 people were knowing that we tried to get a geohash.
Plans
Well, I learned about geohashing a few days ago in connection with the 2012-02-26_global. So I prepared myself to chase the airways for geohashes from our flight from Zürich to New York.
Expedition
What a great day to go flying. Clear skys and a great crew. That's the recipe for a successful and fun commercial flight.
As we don't receive any good GPS signals in the cockpit (Faraday Cage?) I had to check the route manually for any geohashes enroute, which is quite some work as we are crossing a graticule in around 10 minutes average and my job is not just sitting there and check for random coordinates. Second problem is a pure air safety one: we just cannot go off our IFR flightplan, which means the hash needs to be right on our track.
The first point I wanted to test was in the graticule 47,-15 - that was the time I quickly learned that our first possibility was in graticule 47,-40. So I inserted a pilot waypoint "HASH2" into our flight management computer (FMS) to check our progress enroute.
At the time of overflying the waypoint we slightly navigated off the track F to get get as close as possible. The commander took care of the flying as I took the proving photographs and the group photo. Additional Information: On the NAT system, you can go off track at a maximum of 2nm to the right, the point was within 1nm, we were flying 1nm right of the track anyway according to procedures so it did not take a lot to overfly the point.
On the flight back, I did not chase any geohashes, as I wanted to check on my first geohash first. Did I do everything correct?
On the next morning, after sleeping my jetlag out, I checked on the correctness of my first geohash and there it was: a huge mistake. I didn't read the rules well, and the geohash in the graticule 47,-40 was not N 47°57.319 W 40°27.327, but N 47°24.784 W 40°20.498!!! Noooo!!!! Where was my mistake?
30W_Time_Zone_Rule gave the solution. So that was my first expedition and my first contact with geohashing. However I hope you guys don't do the same mistake.
I will be back.
Tracklog
n/a
Photos
My first try: "HASH" in the graticule 48,-15
We are here, custom waypoint "HASH2" with a lateral distance of 0.0nm and the GPS (left) showing the coordinates.
We did it!
Achievements
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wolkenjaeger earned the Blinded by Science Consolation Prize
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