[amsat-bb] Re: Delfi-C3 Close approach warning

wouter weggelaar pa3weg at amsat.org
Fri Apr 2 09:33:43 PDT 2010

Hi All,

Delfi-C3 and the COSMOS debris missed each other by more than 700
meters, so no harm was done as far as we know. Delfi-C3 still performs
nominal and is approaching its second birthday! Thank you for sending
in your telemetry and posting the status on http://oscar.dcarr.org/ !

On behalf of the Delfi-C3 team,

Wouter Weggelaar
Delfi-C3 Mission Operations

On Tue, Mar 30, 2010 at 9:59 AM, wouter weggelaar <pa3weg at amsat.org> wrote:
> Hi All,
> While Delfi-C3 is rapidly approaching her second birthday on 28th of
> April, the team got a warning from The United States Joint Space
> Operations Center about a close approach of COSMOS debris and
> Delfi-C3.
> Today at 14:49 UTC the two objects will approach each other almost
> heads on with a difference velocity of 15km/s (yes, kilometers a
> second!). Fortunately, the predicted distance between the objects will
> be 492m, so they will miss each other.
> Although these close approach warnings were given to other satellites
> as well, and the chance that something really happens is very small,
> we would like to encourage people to listen for Delfi-C3 and send in
> telemetry.
> Please have a look at the mission operations page at
> http://www.delfic3.nl/index.php?option=com_content&task=view&id=93&Itemid=122
> for frequency info and the latest RASCAL downoad.
> **PLEASE NOTE** Due to Delfi-C3s habit of sometimes switching off from
> science mode, you might hear nothing while Delfi-C3 is fine. Don't
> panic! but please do listen the orbits after and post your findings on
> http://oscar.dcarr.org
> Thanks on behalf of the Delfi-C3 team,
> Wouter Weggelaar
> Delfi-C3 Mission Operations

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