Re: O.T.Atmospheric Satellite (Research Balloon)

From: David I. Emery (
Date: Thu Oct 11 2007 - 23:19:53 EDT

  • Next message: John A. Dormer 2: "Re: O.T.Atmospheric Satellite (Research Balloon)"

    On Thu, Oct 11, 2007 at 06:52:07PM -0700, Thomas Dorman wrote:
    > Hi.All
    > I had an interesting observation right at around
    > sunset this evening around 00:40UT 10/12/2007 of a
    > atmospheric satellite (research balloon).Not uncommon
    > here in far west Texas but this balloon's envelope
    > exploded.In my 10x50 binoculars I could see many
    > fragments of the balloon's envelope and a cloud left
    > over by the explosion and also observed the payload
    > falling away from the balloon fragments.
    	What size was this ?  As you may know, there are weather
    balloons launched routinely every day for upper air measurements for
    weather forecasting, but these are of course much smaller than many big
    research  balloons.   At maximum altitude  I would think about 10-15 feet
    is about the biggest they get...
    	And from time to time ham-radio operators also launch balloons
    (FAA rules limit these to weather balloon sizes).
    	Both of these balloon types transmit radio signals that often
    include GPS positions of the payload - with the right receiver and software
    its location can be determined in real time.
    	Both are required by FAA rules to have a parachute on the payload.
    Hams try to recover theirs, the NWS relies on the public to sometimes
    send the NWS radiosondes back...
      Dave Emery N1PRE/AE,  DIE Consulting, Weston, Mass 02493
    "An empty zombie mind with a forlorn barely readable weatherbeaten
    'For Rent' sign still vainly flapping outside on the weed encrusted pole - in 
    celebration of what could have been, but wasn't and is not to be now either."
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