[110attendees] E911 position accuracy question
Robert Moskowitz <rgm@labs.htt-consult.com> Mon, 08 March 2021 14:25 UTC
Return-Path: <rgm@labs.htt-consult.com>
X-Original-To: 110attendees@ietfa.amsl.com
Delivered-To: 110attendees@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E228C3A2B1B for <110attendees@ietfa.amsl.com>; Mon, 8 Mar 2021 06:25:00 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RY72v3CfMwr1 for <110attendees@ietfa.amsl.com>; Mon, 8 Mar 2021 06:24:59 -0800 (PST)
Received: from z9m9z.htt-consult.com (z9m9z.htt-consult.com [23.123.122.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 484443A2B1A for <110attendees@ietf.org>; Mon, 8 Mar 2021 06:24:59 -0800 (PST)
Received: from localhost (localhost [127.0.0.1]) by z9m9z.htt-consult.com (Postfix) with ESMTP id 1ADFA6258A for <110attendees@ietf.org>; Mon, 8 Mar 2021 09:24:58 -0500 (EST)
X-Virus-Scanned: amavisd-new at htt-consult.com
Received: from z9m9z.htt-consult.com ([127.0.0.1]) by localhost (z9m9z.htt-consult.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id zlF0HOpabqm0 for <110attendees@ietf.org>; Mon, 8 Mar 2021 09:24:53 -0500 (EST)
Received: from lx140e.htt-consult.com (unknown [192.168.160.29]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by z9m9z.htt-consult.com (Postfix) with ESMTPSA id 5A78A623C1 for <110attendees@ietf.org>; Mon, 8 Mar 2021 09:24:53 -0500 (EST)
To: 110attendees <110attendees@ietf.org>
From: Robert Moskowitz <rgm@labs.htt-consult.com>
Message-ID: <b1caefad-78b7-d33a-5eb7-b46fc9c7adbe@labs.htt-consult.com>
Date: Mon, 08 Mar 2021 09:24:44 -0500
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.0
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"; format="flowed"
Content-Transfer-Encoding: 8bit
Content-Language: en-US
Archived-At: <https://mailarchive.ietf.org/arch/msg/110attendees/HQQZnSUSJGB8_Ws42oKmQgkgUGU>
Subject: [110attendees] E911 position accuracy question
X-BeenThere: 110attendees@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Mailing list for IETF 110 attendees <110attendees.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/110attendees>, <mailto:110attendees-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/110attendees/>
List-Post: <mailto:110attendees@ietf.org>
List-Help: <mailto:110attendees-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/110attendees>, <mailto:110attendees-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 08 Mar 2021 14:25:01 -0000
Anyone here knowledgeable about E911 altitude accuracy and how achieved? FAA has decided to copy FCC on altitude accuracy, but for a different use case. As I recall, FCC wanted EMTs to go to the right floor in a building to find the emergency. FAA is using this to find the unmanned aircraft (UA) operator for whatever reason. Is this the UA operator on the 3rd floor balcony or the 4th? Please do not start a privacy discuss on this. See my drip-privacy draft first. Thus this is really the Ground Control Station (GCS) location, not the UA! FAA want 3M but will settle for 15' at 95% of the time. I think EASA also wants similar numbers. Our research is this is VERY expensive for cheap GCS (GPS altitude accuracy is 13M @ 95% according to gps.gov). Well what if the GCS is a smartphone; it has (supposedly) E911... But how? Is this information available to general apps (UA command&control app)? Please let me know if you have knowledge you can share. Bob
- [110attendees] E911 position accuracy question Robert Moskowitz
- Re: [110attendees] E911 position accuracy question Alexandre PETRESCU