• Ahoy and Welcome to the New SSS Forums!!

    As you can see, we have migrated our old forums to new software. All your old posts, threads, attachments, and messages should be here. If you see anything out of place or have any questions, please scroll to the very bottom of the page and click "Contact Us" and leave a note with as much detail as possible.

    You should be able to login with your old credentials. If you have any issues, try resetting your password before clicking the Contact Us link.

    Cheers
    - Bryan

Collosion Avoidance - A Script to Assist RC in Identifying Relative Pos'n of Rowers

brianb

brianb

Olson 34 Driver
EVeryone is aware that a fleet of boats are rowing to Hawaii. They left Monterey about 7 days ago. They are using the YB tracking system. I have access to their position data hourly. I would like to see if a volunteer could create a script, in Python or something similar, that could compare all the row boat positions with all the SHTP boat positions and then flag any close approaches. The row boats are all equipped with AIS on low antennas.

The script would have to do an NxM analysis.
Compare two sets of spherical coordinates (lat/lon) and create a distance vector.
Generate a report of nearest approaches in order of separation distance, and/or flag near approaches (50 NM ? ). Email report to the RC.
The script would have to open two URL's and scrub/parse the URL's for relevant data.

Any takers out there ?

Google Great Pacific Race for data on the rowing teams.

Thanks
Brian
 
They are going to Oahu and are all WAY south of the rhumbline. So the hazard seems pretty low.

I've got 85% of this done already --

data from here:

http://yb.tl/Links/greatpacificrace2014

Import Expedition files and parse to get

PROJ 36.602 -121.89 201406241400
ROWI 35.0136 -121.707 201406241500
ELSA 32.8468 -121.49 201406241400
JIMB 34.9357 -121.2 201406241500
CLEA 36.6041 -121.892 201406111600
CC4P 30.0638 -123.685 201406241400
FATC 32.7535 -122.512 201406241400
BATT 28.3586 -129.111 201406241400
BOAT 33.302 -123.36 201406241400
PACI 33.578 -121.526 201406241400
NOMA 30.0787 -126.484 201406241400
PACI 31.0135 -125.745 201406241400
UNIT 28.2012 -130.676 201406241400
SUPP 36.6038 -121.89 201406241400
SUPP 36.6012 -121.905 201406241400

attachment.php



2014-06-24_084106.jpg


Their VMGs are really low -- our fleet should pass way to the north of them .
 
Agreed, and thanks.

Just a precaution (" just because you are paranoid doesn't mean they arn't out to get you" [Grove]). The WestSail or Mini might go off on a hot vector seeking big breeze and apparent angle and get pretty far south, you never know.

Thanks and that was quick. I just don't have time to dabble with it.

pogen said:
They are going to Oahu and are all WAY south of the rhumbline. So the hazard seems pretty low.

I've got 85% of this done already --

data from here:

http://yb.tl/Links/greatpacificrace2014

Import Expedition files and parse to get

PROJ 36.602 -121.89 201406241400
ROWI 35.0136 -121.707 201406241500
ELSA 32.8468 -121.49 201406241400
JIMB 34.9357 -121.2 201406241500
CLEA 36.6041 -121.892 201406111600
CC4P 30.0638 -123.685 201406241400
FATC 32.7535 -122.512 201406241400
BATT 28.3586 -129.111 201406241400
BOAT 33.302 -123.36 201406241400
PACI 33.578 -121.526 201406241400
NOMA 30.0787 -126.484 201406241400
PACI 31.0135 -125.745 201406241400
UNIT 28.2012 -130.676 201406241400
SUPP 36.6038 -121.89 201406241400
SUPP 36.6012 -121.905 201406241400

attachment.php



View attachment 632


Their VMGs are really low -- our fleet should pass way to the north of them .
Click to expand...
 
Well the row boats also have AIS-xmit, unlike most of the floating debris, packing crates, big wads of netting and Japanese floating dock modules. I guess there won't be much overlap of our fleet with PacCup.
 
Yes, and a good portion of our fleet has AIS as well. That said, the row boat antenna's are nt too high. I doubt range is much more that 8 miles. It would be good to warn folks if things look dicey. As far as the Tsunami debris, I can say that from 2012 a lot of that stuff glows in the dark.
 
I couldn't help but laugh at this thread, not that this isn't an appropriate concern, but that it's probably low on the list of concerns for most racers.
I think most racers are thinking about leaving the bay on a flood tide into 30kts plus northerlies. I would.
Collision at sea with a kayak...I feel sorry for the kayak.
What crazy person rows across an ocean? That's like sailing alone. ; )
 
brianb said:
Yes, and a good portion of our fleet has AIS as well. That said, the row boat antenna's are nt too high. I doubt range is much more that 8 miles. It would be good to warn folks if things look dicey. As far as the Tsunami debris, I can say that from 2012 a lot of that stuff glows in the dark.
Click to expand...

You know, large pieces of floating debris tend to attract fish. So it's not all bad news.
 
Steevee said:
I couldn't help but laugh at this thread, not that this isn't an appropriate concern, but that it's probably low on the list of concerns for most racers.
I think most racers are thinking about leaving the bay on a flood tide into 30kts plus northerlies. I would.
Collision at sea with a kayak...I feel sorry for the kayak.
What crazy person rows across an ocean? That's like sailing alone. ; )
Click to expand...
and I couldn't help laughing at these ruminations, oh wise one.
 
Just something else to think about as you're drifting off into NannyNooNoo land. Always sleep feet forward.
 
Philpott said:
and I couldn't help laughing at these ruminations, oh wise one.
Click to expand...

No wise one here, just a fool. As far as ruminations, they're my specialty. I'm still working on the solutions. But in the above situation you guys know better than I. The only thing I have to offer is good luck, have fun and be brave.
 
Steevee said:
No wise one here, just a fool. As far as ruminations, they're my specialty. I'm still working on the solutions. But in the above situation you guys know better than I. The only thing I have to offer is good luck, have fun and be brave.
Click to expand...

Glad we can provide entertainment. Glad also we can do something relatively easy by using data at our fingertips. NannyNooNoo ?? Is that a Pac Cup term that has developed ?
 
brianb said:
NannyNooNoo?? Is that a Pac Cup term that has developed?
Click to expand...

Yeah. I'm told that at the end of your watch you tell the helmsman "I'm going NannyNooNoos now. Wake me up if you need something."

Totally a PacCup thing - in the solo race the voices don't give a crap whether you sleep.
 
attachment.php


Rowers this morning
 

Attachments

  • 2014-06-26_082858.jpg
    2014-06-26_082858.jpg
    37.5 KB · Views: 723
The threat level is ORANGE. It is always ORANGE.

Hey I hope Mouton Noir is OK. He is going backwards fast.
 
You must log in or register to reply here.
Back
Top