Need help identifying a flashing satellite

From: Caleb (
Date: Wed Oct 02 2013 - 11:15:26 UTC

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    I'm a recreational backyard astronomer (past 7 years).
    You may recall that I posted a similar request on SeeSat-L last August 24th.
    I'm trying to figure out what this object is. Maybe you can help:
    Location: 30°04'43.33"N 81°36'46.81"W (Saint Johns FL, USA 32259)
    Date and time: Tuesday, October 1, 2013, 9:22pm Eastern Daylight Time
    Limiting magnitude in area of observation: 5.5
    Description of observation: I was out re-learning the stars in the
    constellation Aquarius and saw a single, around magnitude -10 flash (much
    brighter than Venus), sized slightly bigger than Venus.  It was not a
    blink, but a gradual fade in-and-out, lasting about 3 seconds. It was
    located just north of either 52 Sagittarii or Chi-1 Sagittarii.  After the
    flash, its magnitude decreased down to about 5 or 5.5 (slightly dimmer than
    52 Sagittarii or Chi-1 Sagittarii).  It was moving from North or
    North-Northwest toward the South, at a rate of about 1 degree per second
    (roughly).  It was below the tree-line about 30 seconds after I saw it.
    Notes: I have never seen an Iridium flare, and I do all my observing alone,
    so I don't have anyone to tell me if that is what it was.  Oddly enough, I
    saw the flashing geosat that you guys helped me identify last year while I
    was out re-learning the stars in the constellation Aquarius.  This must be
    a good time of year for that sort of thing (?)
    I appreciate your time in helping me identify this object.
    Caleb Vorwaller
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