Re: Elset estimates for upcoming ELECTRON launch

From: Robert Holdsworth via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 11 Jun 2020 18:37:00 +1200
Scrubbed owing to high winds at the launch site.
Next launch attempt not yet announced.

Robert

On Wed, 10 Jun 2020, 02:39 Marco Langbroek via Seesat-l, <
seesat-l_at_satobs.org> wrote:

>
> On 11 Jun, Rocketlab will try to launch an Electron rocket from Mahia LC-1
> in
> New Zealand, that is a rideshare for several smallsats including three NRO
> payloads, as well as Pathfinder M2 and ANDESITE.
>
> Navigational Warnings indicate a launch into a ~97-degree inclined orbit.
>
> Below are three estimated elsets for the start, middle and end of the
> launch
> window (4:43-6:32 UT, 2020 June 11):
>
>
> ELECTRON                            for launch 2020-06-11 04:43:00 UT
> 1 70000U 20999A   20163.19652778  .00000000  00000-0  00000-0 0    06
> 2 70000 097.0000 336.0043 0007269 231.0041 325.4394 15.21936767    06
>
> ELECTRON                            for launch 2020-06-11 05:38:00 UT
> 1 70001U 20999A   20163.23472222  .00000000  00000-0  00000-0 0    06
> 2 70001 097.0000 349.7919 0007269 231.0041 325.4394 15.21936767    00
>
> ELECTRON                            for launch 2020-06-11 06:32:00 UT
> 1 70002U 20999A   20163.27222222  .00000000  00000-0  00000-0 0    04
> 2 70002 097.0000 003.3289 0007269 231.0041 325.4394 15.21936767    04
>
>
> Note that you can adjust any of these elsets to another launch time using
> my
> 'TLE from Proxy' program (http://software.langbroek.org)
>
> Note a possible time uncertainty in the pass times of at least 2 minutes on
> first revolution (and more after that)!
>
> There is also some leeway in the orbital inclination possible, and with
> this the
> exact orbital plane.
>
> Orbital altitude is an estimate based on what has been published for
> ANDESITE,
> one of the civilian payloads.
>
> Elsets are also available through the 'Launchtower'.
>
> - Marco
>
>
> -----
> Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
> e-mail: sattrackcam_at_langbroek.org
>
> Station (b)log: http://sattrackcam.blogspot.com
> Launchtower:    http://launchtower.langbroek.org
> Twitter:        _at_Marco_Langbroek
> -----
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Received on Thu Jun 11 2020 - 01:38:41 UTC

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