From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id D34D03B29D for ; Fri, 7 Jul 2023 01:28:10 -0400 (EDT) Received: by mail-pj1-x1035.google.com with SMTP id 98e67ed59e1d1-26304be177fso856213a91.1 for ; Thu, 06 Jul 2023 22:28:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1688707689; x=1691299689; h=content-language:content-transfer-encoding:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject:from:to:cc :subject:date:message-id:reply-to; bh=/gx7S9I6tfm9lbW2uRlH8ZbJaajuglLfMyz+37fOd1g=; b=KnqR1FurC4tzvPLPN4O8dGZpDEMo9wN87eY1N7dpx0+IFP2wvkxFcPYoiXZ7ni74c+ VHyT3i2dUGUFobebnUqx15vORS6QlcwLRoCYBOYhuOdZUcoF6cj0gGtnGGXOAadv4MW4 Szv22UaHSCw5zRa7uhQbE3lw5zhu65/HV/gSqn59KNbF1wakIUPbZg1u+vTU268q4PVx VBt09eU72ldm4w0Hy0aQ0JepdEgMLqZITXTZqtGB2NLP9HFjaU+ZPCcMbi0u1/GZnPBn p9CGPbOdE6cgC0xhXoSw+lXqcLHZ4qvLk4ppB3GILoQNUBkx3XGBkBvPa+T+dIQqgz4P EtdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688707689; x=1691299689; h=content-language:content-transfer-encoding:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=/gx7S9I6tfm9lbW2uRlH8ZbJaajuglLfMyz+37fOd1g=; b=WJHQdqGJOD/aGqKDYR38ESDCEYFNgj5OnutxeLUJXRPIX5yy4l6IFw4IB85Uo5oTR1 //74gJOOY9Af5sYiSzZ4Okf9i5aB5eqLkMsmJ03IVmdLVDq9GWf5qjceokvsJbl+hlTq TKkfyP+uo0+moeaMGuZPnpiKmcbvtwU6a2y766QK8ygfnnf9tm5yvqd42jtOH+VMV8kk 9KLOTGeifnR/fdZxsjQclRYjW0hxiG4m8J8t12wRvNVrh2ThXCbHlYs8pG0BsYJgu8KN nW1w3tKb3PprspDK9bu51jn0E1Sg0eqr/HGu018/plO5SCh8RuYZi/wCM19LZ6wDPbkh eAhA== X-Gm-Message-State: ABy/qLYXKv8HdKvDtdFYB0MUYZjyz2ULnHrIH0Kln7Y5E6uyuTxBDaza 5GQ2UmLrLdzddOHel1XRJNOnu+UxPPPMpA== X-Google-Smtp-Source: APBJJlGXFBl2kF/FjMi7EeSeiBvcGN8vO5tHGEJh98eEGvwK5O8+Js1dm46ODRZarfnLbw4r0IaWzA== X-Received: by 2002:a17:90a:d155:b0:263:cfc9:754a with SMTP id t21-20020a17090ad15500b00263cfc9754amr3248035pjw.0.1688707689496; Thu, 06 Jul 2023 22:28:09 -0700 (PDT) Received: from ?IPv6:2600:1700:8ca0:c7ef:5d5f:fcfb:104a:9293? ([2600:1700:8ca0:c7ef:5d5f:fcfb:104a:9293]) by smtp.gmail.com with ESMTPSA id r6-20020a638f46000000b005307501cfe4sm2097198pgn.44.2023.07.06.22.28.09 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Jul 2023 22:28:09 -0700 (PDT) To: David Lang Cc: Daniel AJ Sokolov , starlink@lists.bufferbloat.net References: <114eabbd-cf5b-1c08-8226-fbf53455d9ea@falco.ca> <6p3296pr-96n3-8p77-ps68-25155r16o365@ynat.uz> From: blakangel@gmail.com Message-ID: <32d09d76-7aa6-a469-9539-d02a9fa9c7f3@gmail.com> Date: Thu, 6 Jul 2023 22:28:06 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 PostboxApp/7.0.60 MIME-Version: 1.0 In-Reply-To: <6p3296pr-96n3-8p77-ps68-25155r16o365@ynat.uz> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Subject: Re: [Starlink] orbital maneuvers 12 per sat in the last 6 months X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Jul 2023 05:28:11 -0000 I think the main point of the article is that the amount of maneuvers needed is currently increasing exponentially: "It's been doubling every six months, and the problem with exponential trends is that they get to very large numbers very quickly." I'm wondering if they are not taking into account the massive amount of satellites that have been launched since the previous six month report. I found the semi-annual reports filed w/ the fcc: https://licensing.fcc.gov/myibfs/download.do?attachment_key=23204343 and https://licensing.fcc.gov/myibfs/download.do?attachment_key=23204338 for gen 1 and gen 2 constellations. Still reading them and haven't found the older ones yet to compare. David Lang via Starlink wrote on 7/6/2023 9:49 PM: > some people are assuming that more satellites launched will mean more > maneuvers needed (not recognizing that what matters is only the things > at the same altitude) > > plus, it's a scary large number :-) > > David Lang > >  On Thu, 6 Jul 2023, Daniel AJ Sokolov via Starlink wrote: > >> On 7/6/23 17:54, Dave Taht via Starlink wrote: >>> >> https://www.space.com/starlink-satellite-conjunction-increase-threatens-space-sustainability >> >>> >>> I am under the impression that each sat is capable of about 500 over >>> the satellite's lifetime. I am curious as to what they are avoiding. >> >> Assuming your number of 500 is correct, I don't see any worry here. >> 12 moves in 6 months makes 492 in 20.5 years. That is less than 500 >> and beyond the lifetime expectation of the satellite anyway. >> >> A I missing something? >> Daniel AJ >> _______________________________________________ >> Starlink mailing list >> Starlink@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/starlink >> > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink