[600MRG] Tiangong-1 deorbit; propagation effects?

[Edward R Cole]

Robert,

The ionization caused by reentry of the space station would be the 
same effect as a meteor (all beit very large meteor).  The ionized 
gas is very thin at the altitude its generated (roughly same as 
e-layer) and dissipates in seconds or perhaps a few minutes.  No 
lasting effects, plus you would need to be within 1800 km of the 
reentry path to even see it, I would think.  Meteor scatter effects 
are maximum around 40-50 MHz so at 630m I wonder?

Solar propagation effects are a different "animal".  The 
thermonuclear engine (sun) is a whole lot bigger than a little "bus 
sized" satellite burning up in the atmosphere.

If it landed in Seattle you'd have better chances, though folks in 
Seattle might disagree <joke>

In any case the effects are over shortly after reentry.

73, Ed - KL7UW

At 11:30 AM 4/2/2018, Robert Grizzard wrote:
>The China Manned Space Engineering Office reported that Tiangong-1, the
>Chinese space station launched in September 2011, deorbited at 0015Z
>Monday, 2 April 2018. Has anybody noticed any difference in 630 meter
>propagation since?
>
>de kg7yy
>______________________________________________________________
>600MRG mailing list
>Home: http://mailman.qth.net/mailman/listinfo/600mrg
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:600MRG at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html

73, Ed - KL7UW
   http://www.kl7uw.com
Dubus-NA Business mail:
   dubususa at gmail.com