From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) (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 8B7903CB37 for ; Mon, 24 Apr 2023 11:49:57 -0400 (EDT) Received: by mail-pl1-x62c.google.com with SMTP id d9443c01a7336-1a6715ee82fso51452355ad.1 for ; Mon, 24 Apr 2023 08:49:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nathan.io; s=google; t=1682351396; x=1684943396; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=aV1O944Tdj7UV7lk+rCTvvRVrFZlw1broCgmZLnD6GU=; b=grYe3rHXVj766TGIiDStuMI6st7M4+vjfrYcTFSTNm0QOotcYak9xPMbLRaQozWoW8 09V3H64UsezgMizHs1kPUOyroibtmwP0x7rZKJ2o2Kc+5OUeLjLX/Bn9PKbGu7Wku6kh dr5xBC1YcYuVt3oqOWbQUWYC/5VMVvW11AFIrk0hFsWwYk4CXb6JmPOgLjzgzNt5yCKO zFa3rfLRM+Oj9u7BaF1ZB+SkN+UI1FKCEdSna7iB+nn/II0w3AX+JfhyIp5n1mou/0My C1QdUYgzZCBnPxAxUmHZg7lpt7aeSNuNBGUqcbQIr87763IKe2D3tR8FvXGoQaTr20K3 E1Gw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682351396; x=1684943396; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=aV1O944Tdj7UV7lk+rCTvvRVrFZlw1broCgmZLnD6GU=; b=RXXT4bLEYhD83f7eVCSKyB5kCbMOk3As7TuuqfM6BZws4P3FUMsNt3X8JWaiqgMsNX RtagxLl3+oBXSTd6B34RP15Iu3OORoxyYY+gWzRtDdf7XWV/kDedhDpKlxk3VkSmjC/U jqTAqpCNBaAXMyqauimGjEnpuvUg/d4MEIZxJ+r+9t7yoPq/npjVdjrj12hbVpj+v7dl TJzoiwqMWfZLMv0XkLonVyD/us0ZUcifnwys9++hs9RFURxaXaShcdEkHqaoVVF30vSe xA7H0l09Gl4J41BjZbZnKvFufaXdEo9C0UosyoNdgGQpTb5r9h82Z8xeu126AEnooU0l IfNg== X-Gm-Message-State: AAQBX9ehm6FYfv9ZEni1cJX+MZ62hqBDbJ8KnQ4xSI4xcQYMvE4DqNpg Jp/JzLp5mjFazecDcGtAs232eHpaJ0vso+gdLreq7ogWNeNxQTXiDiW14g== X-Google-Smtp-Source: AKy350bPiMSZ+B5lshWtXIffZpItUHqp0iKBLlShRIJ4R2tUfPr0yQUjBByiFZbYNdIFV6XRG3HVXOrpIg+GBSK9jVI= X-Received: by 2002:a17:902:ed0b:b0:19c:dbce:dce8 with SMTP id b11-20020a170902ed0b00b0019cdbcedce8mr13795572pld.15.1682351396237; Mon, 24 Apr 2023 08:49:56 -0700 (PDT) MIME-Version: 1.0 References: <26657.1682349381@localhost> <32628.1682350637@localhost> In-Reply-To: <32628.1682350637@localhost> From: Nathan Owens Date: Mon, 24 Apr 2023 08:49:45 -0700 Message-ID: To: Michael Richardson Cc: Dave Taht via Starlink Content-Type: multipart/alternative; boundary="0000000000005c56f805fa16f564" Subject: Re: [Starlink] some post Starship launch thoughts 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: Mon, 24 Apr 2023 15:49:57 -0000 --0000000000005c56f805fa16f564 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable *V1.5* ~ 305kg 2.8 x 1.3m bus 22.68sq m solar panel 2x Ka parabolics 4x Phased arrays (likely 3x TX, 1x RX) 3x ISLs ~20Gbps (http://www.satmagazine.com/story.php?number=3D1026762698, Elon comments) *V2.0 Mini* < 800kg 4.1 x 2.7m bus 104.96sq m solar panel ?? Parabolics, E-Band support ?? Phased Arrays 3x ISLs? (based on photos) ~4x capacity increase over v1.5 ~80Gbps *V2.0 * < 2000kg (~1250kg per Elon) 6.4 x 2.7m bus 256.94sq m solar panel ?? Parabolics, E-Band support ?? Phased Arrays >=3D 3 ISLs? ~7-9x capacity increase over V1.5 ("almost an order of magnitude" per Elon) Direct-to-Cell? ~140-180Gbps On Mon, Apr 24, 2023 at 8:37=E2=80=AFAM Michael Richardson via Starlink < starlink@lists.bufferbloat.net> wrote: > > Dave Taht wrote: > > On Mon, Apr 24, 2023 at 8:16=E2=80=AFAM Michael Richardson via Star= link > > wrote: > >> > >> Dave Taht via Starlink wrote: > >> > Everyone wants a water deluge system and flame diverter, but I w= as > >> > thinking perhaps liquid nitrogen, as a natural byproduct of LOX > >> > >> Yeah, but how do you put one on the moon or mars? > >> Lower gravity helps, sure, ... > > > Well, the concrete did not shatter at 1/2 thrust... > > Can the rocket get off the pad at 1/2 thrust? If it could get 4-5m away, > it > probably could work. > > >> > Landing and then taking off from the moon or mars look rather > >> > problematic at the moment! > >> > >> Do the rockets do the swoop and flip on mars and the moon? > > > SSTO in those cases. Presently. > > SS... To Orbit. > I mean... landing. Does one flip when landing on the moon? > > >> This part I just don't understand. > >> (But then, the entire mars mission is fraught with dozens of > missing things, > >> starting with radiation shielding) > > > I was a very lonely asteroid exploration advocate at the launch, > > futilely engaging with the "Mars Firsters" once again, as I have be= en > > since the 80s. > > I am with you on this. > > Given some mcguffin drive that could get us to another star in some > reasonable time, when we arrive, we'll still need to live in a space colo= ny > for a few dozen years before said planet can be made habitable. > (Even if it was perfect, we still need to clear some land and grow some > crops, and find/build local source of power...) > > > > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink > --0000000000005c56f805fa16f564 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
V1.5
~ 305kg
2.8 x 1.3= m bus
22.68sq m solar panel
2x Ka parabolics
= 4x Phased arrays (likely 3x TX, 1x RX)
3x ISLs

V2.0 Mini
< 800kg
<= div>4.1 x 2.7m bus
104.96sq m solar panel
?? Parabolics= , E-Band support
?? Phased Arrays
3x ISLs? (based o= n photos)
~4x capacity increase over v1.5
~80Gbps

V2.0
< 2000kg (~1250kg per= Elon)
6.4 x 2.7m bus
256.94sq m solar panel
<= div>?? Parabolics, E-Band support
?? Phased Arrays
>=3D 3 ISLs?
~7-9x capacity increase over V1.5 ("al= most an order of magnitude" per Elon)
Direct-to-Cell?
~140-180Gbps

On Mon, Apr 24, 2023 at 8:37=E2=80=AFAM Mich= ael Richardson via Starlink <starlink@lists.bufferbloat.net> wrote:

Dave Taht <dave= .taht@gmail.com> wrote:
=C2=A0 =C2=A0 > On Mon, Apr 24, 2023 at 8:16=E2=80=AFAM Michael Richards= on via Starlink
=C2=A0 =C2=A0 > <starlink@lists.bufferbloat.net> wrote:
=C2=A0 =C2=A0 >>
=C2=A0 =C2=A0 >> Dave Taht via Starlink <starlink@lists.bufferbloat.net> wrote:
=C2=A0 =C2=A0 >> > Everyone wants a water deluge system and flame = diverter, but I was
=C2=A0 =C2=A0 >> > thinking perhaps liquid nitrogen, as a natural = byproduct of LOX
=C2=A0 =C2=A0 >>
=C2=A0 =C2=A0 >> Yeah, but how do you put one on the moon or mars? =C2=A0 =C2=A0 >> Lower gravity helps, sure, ...

=C2=A0 =C2=A0 > Well, the concrete did not shatter at 1/2 thrust...

Can the rocket get off the pad at 1/2 thrust?=C2=A0 If it could get 4-5m aw= ay, it
probably could work.

=C2=A0 =C2=A0 >> > Landing and then taking off from the moon or ma= rs look rather
=C2=A0 =C2=A0 >> > problematic at the moment!
=C2=A0 =C2=A0 >>
=C2=A0 =C2=A0 >> Do the rockets do the swoop and flip on mars and the= moon?

=C2=A0 =C2=A0 > SSTO in those cases. Presently.

SS... To Orbit.
I mean... landing.=C2=A0 Does one flip when landing on the moon?

=C2=A0 =C2=A0 >> This part I just don't understand.
=C2=A0 =C2=A0 >> (But then, the entire mars mission is fraught with d= ozens of missing things,
=C2=A0 =C2=A0 >> starting with radiation shielding)

=C2=A0 =C2=A0 > I was a very lonely asteroid exploration advocate at the= launch,
=C2=A0 =C2=A0 > futilely engaging with the "Mars Firsters" onc= e again, as I have been
=C2=A0 =C2=A0 > since the 80s.

I am with you on this.

Given some mcguffin drive that could get us to another star in some
reasonable time, when we arrive, we'll still need to live in a space co= lony
for a few dozen years before said planet can be made habitable.
(Even if it was perfect, we still need to clear some land and grow some
crops, and find/build local source of power...)



_______________________________________________
Starlink mailing list
Starlin= k@lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/starlink
--0000000000005c56f805fa16f564--