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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/XOHFDIBXORIAVW43WSYC7GDOCAP42CVE/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CANEZo+n2QNzSaoOWSOWxLY6V0EhaNTf-OJi=NKA8MUhWOwetnw@mail.gmail.com",
    "message_id_hash": "XOHFDIBXORIAVW43WSYC7GDOCAP42CVE",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IHQP3XTZLDGMFM2K7BXVM6TLWZQS6CA5/?format=api",
    "sender": {
        "address": "tom (a) bloomington.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Tom Busch",
    "subject": "[amsat-bb] Re: Malaysian airliner puzzle",
    "date": "2014-03-17T16:11:20Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/UCDPQNAWM6QY64FKGU3CG5LUDAYTUJG3/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/275JANT5Q7R47NUWIJPVSKU4Z3JVZ3KF/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Looks like I'm wrong.  The \"Steering\" info wasn't from CNN.  It's from this\nHuffington Post article:\nhttp://www.huffingtonpost.com/2014/03/16/malaysia-airlines-takeover_n_4972889.html.\nI still would like to know how the satellite knows.\n\nIt also says that these \"pings\" occur every hour, so I suppose it could\nhave kept flying for an hour after the last contact.\nTom  WB8WOR\n\nOn Mon, Mar 17, 2014 at 11:28 AM, Tom Busch <[email protected]> wrote:\n\n> The news has been reporting that they are using the angle of the last\n> known ping from the ACARS system to the satellite.  This is where the\n> 40-degree arc around the satellite comes from.\n>\n> What I don't understand is how INMARSAT knows what that angle is.  CNN\n> says that the satellite steers its antenna to the location where it expects\n> the next ping, but that doesn't make sense.\n>\n> I have been looking for the algorithm, but I can't find it.  Signal\n> strength? Some sort of electronic steering?  Trade secret?  I don't know.\n>\n> Tom WB8WOR\n>\n>\n> On Sun, Mar 16, 2014 at 10:57 PM, R.T.Liddy <[email protected]> wrote:\n>\n>> Tony,\n>>\n>> They would use the time differential between receipt\n>> to measure the distance versus the location of the\n>> satellites. The more satellites, then the more accurate\n>> the triangulation.\n>>\n>> 73,   Bob K8BL\n>>\n>>\n>> ________________________________\n>>  From: Anthony Japha <[email protected]>\n>> To: amsat-bb <[email protected]>\n>> Sent: Sunday, March 16, 2014 4:49 PM\n>> Subject: [amsat-bb] Malaysian airliner puzzle\n>>\n>>\n>> Thanks Rick,\n>> How do those sats determine distance to the source?\n>> Tony, N2UN\n>>\n>> ---\n>> This email is free from viruses and malware because avast! Antivirus\n>> protection is active.\n>> http://www.avast.com\n>> _______________________________________________\n>> Sent via [email protected]. Opinions expressed are those of the author.\n>> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>> _______________________________________________\n>> Sent via [email protected]. Opinions expressed are those of the author.\n>> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>>\n>\n>\n",
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}