Astra 1N tests - latest chat

[M60]

Good job there Timo, I like it! It does fit very well, in fact it's neater than 2D's, even chops Iceland off too which enjoys 2D reception. We'll have to see now whether more Txp's are migrated over to 2C from 1KR as this will prove whether there's any truth in all of this. Cheers too AS for that 19.2E info.

I blame Doron Shimoni on Facebook if this all turns out to be true as he's the one who's been blagging on their wall how well 1N comes in abroad!!

 

[Ask]

Something like this?

View attachment 39076

It's actually a bit scary how well it fits...

Where did you find this spotbeam?

"SatBeams - Satellites" and "Satkurier" shows a different spotbeam Polen Astra 1Kr, or am I wrong?

 

[timo_w2s]

Where did you find this spotbeam?

"SatBeams - Satellites" and "Satkurier" shows a different spotbeam Polen Astra 1Kr, or am I wrong?

I made it.

I just took the Polish spot, kept the same proportions, and moved it over the UK. It's just to show how it could look if it was moved over the UK.

 

[welshman234]

This shows the danger of not reading this thread in context -how long is it til this diagram makes it onto the Torremolinos forums or whatever and creates sheer unadulterated panic

 

[Analoguesat]

This shows the danger of not reading this thread in context -how long is it til this diagram makes it onto the Torremolinos forums or whatever and creates sheer unadulterated panic

Its probably too late

 

[timo_w2s]

This shows the danger of not reading this thread in context -how long is it til this diagram makes it onto the Torremolinos forums or whatever and creates sheer unadulterated panic

Maybe I should have made that disclaimer on the picture a bit clearer. I did wonder if it would appear somewhere else as "fact"...

 

[Lazarus]

It would look good on Flysat!

 

[welshman234]

I have already sent the picture to MI5 and secret service recommending that the author gets a job in psychological warfare

 

[PaulR]

Maybe I should have made that disclaimer on the picture a bit clearer.

I hadn't noticed that until you just mentioned it and had to go back and check!

 

[andrewcrawford]

the strange things is being dsylexic i tend not to notice small print so to say, but i seen teh disclaimer quite easily and could tell right away what it was sayin, find it strange people with better reading skills than me never noticed or understood it

 

[Dan Dan]

SES Astra company was up to a change in location for some of its satellites. Thus, Astra 1KR, now located at 19.2 º E, will be located in January at 28'2 ° E, which would explain the satellite change in recent days by Canal +.

On the other hand, the newly 1N would go to its final location, 19.2 ° E in February 2012. Currently in 28'2 º E.

In May 2012 Astra 2C would go to 31.5 ° E, implying a further shift to Canal + satellite, possibly transferred to Astra 1N.


there are lots of changes to DIGITAL PLUS SPAIN on ASTRA and HISPASAT 1E...maybe ses want to reduce the dish size in the islands from a 1m dish,it5 is very big for a DTH service these days

 

[solly]

curent now astra 1kr very weak east europe also mideast need dth bigger to get it
any plan more transponder swish from 1kr to 2c who next ?

 

[Huevos]

Something like this?

Interesting. I think you need to twist it anticlockwise more. Poland is 21ºE and 1KR is at 19.2E (almost due south) and the elevation is over 30º. If you move that satellite to 28E and point it at the UK the elevation is much lower (maybe 23º for central UK) elongating the NE/SW footprint and turning the flat at the bottom of the footprint towards SE France or north Italy.

 

[timo_w2s]

Interesting. I think you need to twist it anticlockwise more. Poland is 21ºE and 1KR is at 19.2E (almost due south) and the elevation is over 30º. If you move that satellite to 28E and point it at the UK the elevation is much lower (maybe 23º for central UK) elongating the NE/SW footprint and turning the flat at the bottom of the footprint towards SE France or north Italy.

How about this version?


Anyone know how much control SES have over these spots?

 

[Huevos]

How about this version?

Looks good to me.

Anyone know how much control SES have over these spots?

What do you mean? The beam shaping is fixed by the aerial design (i.e. before launch). The only thing the operator can change is where the beam is directed.

 

[Dark-Sider]

Why would they do this complicated swap?

Afaik was the timeline:

Astra 2C 31,5 -> 19,2
Astra 1N launch -> 28,2
----Speculation below---
Astra 1KR 19,2 -> 28,2 (after KR's transponder relocated to 2C)
Astra 1N 28,2 -> 19,2 (after 1N's transponders relocated to 1KR)
Astra 2C 19,2 -> back to 31,5 where it came from (WTF?)

Easier way would had been:
Astra 1N launch -> 19,2°
Astra 1KR 19,2 -> 28,2 (after transponders relocated to 1N)
leave 2C @ 31,5

Why would SES choose to play "chess in the sky" with their billion dollar satellites?

 

[timo_w2s]

What do you mean? The beam shaping is fixed by the aerial design (i.e. before launch). The only thing the operator can change is where the beam is directed.

I was thinking how much they can shift the spots, like when 2C went to 31.5E there appeared east and west beams spaced quite far apart compared to when it was at 28.2E.

 

[timo_w2s]

Why would SES choose to play "chess in the sky" with their billion dollar satellites?

People are speculating it is because 1N's spot is too wide. Personally, I can't see why it would matter as 1N is only going to be used at 28.2E for a year or so and surely they would have known when they where planning 1N's mission what the spot would be like.

 

[Dan Dan]

Why would they do this complicated swap?

Astra 1KR 19,2 -> 28,2 (after KR's transponder relocated to 2C)
Astra 1N 28,2 -> 19,2 (after 1N's transponders relocated to 1KR
Astra 2C 19,2 -> back to 31,5 where it came from

MAJOR shift of channels from 1KR to 2C on 16/11

 

[M60]

How about this version?
View attachment 39083

I was only thinking last night about what Huevos mentioned about the 'skew' on the spot. This now looks even better, would make you think that spotbeam was made for the UK!!