It's a minor point, but it's been puzzling me - is anyone else seeing

Ionoprobe reporting a big spike in SSN every few days lasting a couple

of hours? shows it jumping from the current near-zero to more than 200!

I checked with another solar stats program and that did not show

anything around that time.



Martin (G8FXC)

Yes - if you put Ionoprobe in Week mode you can see two in the last week -

January 31 and Feb 5, both at the same time of day (late) and both lasting about

the same time.  Other parameters do not show it, so it must be some sort of

anomaly in the SSN data source or the handling of it.



73, Pete N4ZR







At 03:39 AM 2/6/2006, you wrote:

>It's a minor point, but it's been puzzling me - is anyone else seeing

>Ionoprobe reporting a big spike in SSN every few days lasting a couple

>of hours? shows it jumping from the current near-zero to more than 200!

>I checked with another solar stats program and that did not show

>anything around that time.

>

>Martin (G8FXC)

>

>

>

>

>

>

>

>Yahoo! Groups Links

>

>

>

>

Hi Pete,



You are absolutely correct. One of the recently added ionosonde stations

puts the value of 9999.99 in the SSN column of its report once in a while,

and this screws up the calculations of Effective SSN. I have written the

code that detects and removes such errors, it will be included in the next

update of IonoProbe.



73 Alex VE3NEA







> Yes - if you put Ionoprobe in Week mode you can see two in the last week -

> January 31 and Feb 5, both at the same time of day (late) and both lasting

> about the same time.  Other parameters do not show it, so it must be some

> sort of anomaly in the SSN data source or the handling of it.

>

> 73, Pete N4ZR

>

>

>

> At 03:39 AM 2/6/2006, you wrote:

>>It's a minor point, but it's been puzzling me - is anyone else seeing

>>Ionoprobe reporting a big spike in SSN every few days lasting a couple

>>of hours? shows it jumping from the current near-zero to more than 200!

>>I checked with another solar stats program and that did not show

>>anything around that time.

>>

>>Martin (G8FXC)

>>

>>

>>

>>

>>

>>

>>

>>Yahoo! Groups Links

>>

>>

>>

>>

>

>

>

>

> Yahoo! Groups Links

>

>

>

>

>

>

>

>

Hi Gang,



Like Martin and Peter I was also wondering what was happening with SSN,

thanks for the information Alex.

Do any of you fellows know of a popular radio propagation reflector that

caters only to the needs of the 'Ham'?



73 Eric VE3GSI.





-----Original Message-----



Hi Pete,



You are absolutely correct. One of the recently added ionosonde stations

puts the value of 9999.99 in the SSN column of its report once in a while,

and this screws up the calculations of Effective SSN. I have written the

code that detects and removes such errors, it will be included in the next

update of IonoProbe.



73 Alex VE3NEA