Geomagnetic storm

[Johnny5]

I just read about this in another thread, and I have a question.

 

Look at the following picture.

 

What are the units on the Y axis.

 

They say DN/s

 

Thanks

[swansont]

I just read about this in another thread' date=' and I have a question.

 

Look at the following picture.

 

What are the units on the Y axis.

 

They say DN/s

 

Thanks

 

Data Number/second. As far as I can tell it's related to counts per second, but some gain or calibration factor hasn't been included.

[Johnny5]

Data Number/second. As far as I can tell it's related to counts per second, but some gain or calibration factor hasn't been included.

 

What particles are they counting?

[swansont]

What particles are they counting?

 

I imagine photons, initially, and then converted to electrons in a multiplier, or something like that. You'd have to check on the specific satellite to make sure, and see what part of the spectrum they were looking at.

[Johnny5]

I imagine photons, initially, and then converted to electrons in a multiplier, or something like that. You'd have to check on the specific satellite to make sure, and see what part of the spectrum they were looking at.

 

Ok thanks.

 

It sure is a cool looking picture.

 

Regards

[YT2095]

anyone know if one happened today over Europe at all?

 

I had PERFECT propogation fron 01 and 14 division, and considering I was only a wire dipole inside my shed on curtain hooks and had a good 10 minute over with France twice! that`s pretty damn good!

 

my operating conditions were the 1/4 wave wire dipole at 25 watts peak on 27.555 USB at 3pm GMT.

 

we dont USUALY get that kind of "skip" without a Solar Flare or 2 in the 11 year cycle!

 

just for interest one of the lads I spoke to was on the sugar delta A380 team (yes the crew that helped make the Airbus). we`ll QSL later