You can do that if you have good data all the way up -- but these many
consumer GPS modules aren't designed to accurately track altitude in such a
high G environment. I looked at Kurt's data, and the GPS didn't re-lock
until just second prior to apogee.
Greg
On Tue, Jun 16, 2015 at 11:52 AM, Mike Riss <rockt_dude@xxxxxxxxxxxxx>
wrote:
My head got a little fried during the launch, so I don't remember exactly
what he said, but David Reese mentioned something like plotting the data
and fitting it to a curve, which would "ignore" the outliers and give an
approximation that was more reasonable.
Mike
On Tuesday, June 16, 2015 8:28 AM, Chris J Kobel <Chris.J.Kobel@xxxxxxxx>
wrote:
Any GPS velocity? I understand the baro-deduced velocity is garbage for
Mach +.
Chris
From: Kurt Gugisberg <kurtgug@xxxxxxxxx>
To: "roc-chat@xxxxxxxxxxxxx" <roc-chat@xxxxxxxxxxxxx>,
Date: 06/15/2015 10:58 PM
Subject: [roc-chat] Punisher Altitude info
Sent by: roc-chat-bounce@xxxxxxxxxxxxx
------------------------------
I have the GPS reading from my big Red Bee and the official reading from
the Stratologger:
Big Red Bee GPS: 19,071 feet MSL or 16,204 feet above ground level
Stratologger CF: 15,426 feet AGL
Not bad considering that the sim showed it between 11K and 12K.
Kurt
