Unspecified geomagnetic activity

[Andrey M]

No data for more than 48 hours - RIP ACE?  😢

[MinYoongi]

1 hour ago, Andrey M said:

No data for more than 48 hours - RIP ACE?  😢

I think ace was down for longer before

And I also think a lot of dscovr problems are due to one ground station having issues, you can look up the scheduled tracking and it matches the outages with the time the ground station is supposed to track. But that was like 2 weeks ago so idk if that’s still the answer to the current outtages

 

when will dscovr be replaced ?

[Jesterface23]

I wonder if they are prioritizing receiving past science data from ACE

Edited January 14 by Jesterface23

[Jesterface23]

Welp, we will need to see SOHO's solar wind data, but there may have been a CME shock arrival.

[Andrey M]

Another day from ACE - still not breathing ☹️

[MinYoongi]

On 1/15/2024 at 2:34 AM, Andrey M said:

Another day from ACE - still not breathing ☹️

 

 

 

[Philalethes]

37 minutes ago, MinYoongi said:

 

 

So it hasn't kicked the bucket just yet, good to know. Quick, someone point a 70-meter antenna at it and give us an update.

[MinYoongi]

29 minutes ago, Philalethes said:

So it hasn't kicked the bucket just yet, good to know. Quick, someone point a 70-meter antenna at it and give us an update.

Theres Data available on another platform. BTW, ace data on swpc is back  

[hamateur 1953]

70 meter antenna??  4.5 mhz??  Just a racket from all that darned solar flux!! Haha 

[Adrian Kobyłecki]

Where do these sudden jumps in parameters come from?

[MinYoongi]

2 minutes ago, Adrian Kobyłecki said:

Where do these sudden jumps in parameters come from?

Ace is faulty, has been for years. It’s just bad data

[arjemma]

On 1/26/2024 at 2:45 AM, Adrian Kobyłecki said:

Where do these sudden jumps in parameters come from?

Besides ACE, DSCOVR also has some issues. Sometimes DSCOVR have issue with its Faraday Cup instrument that can also cause spikes in the data like the image is showing. Both spacecrafts is getting too old, I'm just thankful for every day they continue to work.

Another known issue with ACE is that its measuring of the density is usually way lower than it really is. So if you see the density plummet down to 0-1 p/cm³  it's often not correct. Also when looking at the graphs on SWL and the density jump from 0.5 to about 10 it doesn't automatically mean that it was a CME impact. Most times it's just a switch from ACE to DSCOVR for the data. Maybe SWL can add a text that shows which spacecraft is active in the blue information bar over the graphs? I mean this text: "With the current speed, it will take the solar wind 70 minutes to propagate from DSCOVR to Earth.". Just a sugestion.

[Justanerd]

At about 0030 UTC JAN 28 there was some sort of impact with the magnetosphere. This followed a colossal jump in the density reading at about 2330 UTC JAN 27. Anyone know what either is about?

[arjemma]

41 minutes ago, Justanerd said:

At about 0030 UTC JAN 28 there was some sort of impact with the magnetosphere. This followed a colossal jump in the density reading at about 2330 UTC JAN 27. Anyone know what either is about?

Please read my comment above. It wasn’t an impact, it was data error.

[Justanerd]

34 minutes ago, arjemma said:

Please read my comment above. It wasn’t an impact, it was data error.

Except the impact was observable on all three geospace magnetosphere movies (velocity, density and pressure) which are not based on ACE or DSCOVER data (at least per the website for those movies) as well as DST data 

edited to add: and now we have a type 2 radio event…

Edited January 28 by Justanerd
Adding

[Jesterface23]

40 minutes ago, Justanerd said:

three geospace magnetosphere movies (velocity, density and pressure)

Those are model runs. ACE and DSCOVR are what give us solar wind data at L1, when they aren't having issues at least. ACE looks to have had some data spikes before they switched back to DSCOVR and that data was probably fed into the model runs.

40 minutes ago, Justanerd said:

and now we have a type 2 radio event

This doesn't have anything to do with the solar wind, but it looks to have come from a CME over the eastern limb. It's not a CME that will impact us

[Jesterface23]

There may have been a CME shock arrival at SA in the morning. Just need to wait and see if it is and arrives at L1.

[Jesterface23]

We might be in the flux rope of the CME, it's barely noteworthy.

[Philalethes]

Looks like we just took a hit from something significant; there's been so much activity lately that I've lost track, any ideas what this is from?

[Jesterface23]

Umm... A CME from early on the 7th is a possibility. Need to do more looking

[mozy]

The M5.1 perhaps?

[MinYoongi]

1 minute ago, mozy said:

The M5.1 perhaps?

Ding Ding Ding youre right

[Parabolic]

12 minutes ago, Kayla Bisson said:

Is there a way to tell what kind of KP this might hit?

KP is a measurement from the past 3 hours. DST is a good indicator so is BT. So far it's decent spike to 20bt and bz went pretty far south to -10. AE index would be a more near-real-time measurement of global geomagnetic activity. Next most accurate measurement would be a magnetometer located close to your latitude.

I should add AE, AO - AU, AL index depending on your geographical location

Edited February 11 by Parabolic

[MinYoongi]

1 minute ago, Parabolic said:

KP is a measurement from the past 3 hours. DST is a good indicator so is BT. So far it's decent spike to 20bt and bz went pretty far south to -10. AE index would be a more near-real-time measurement of global geomagnetic activity. Next most accurate measurement would be a magnetometer located close to your latitude.

I think she meant based on initial impact what to expect in the comming hours  

[Jesterface23]

The velocities are fairly high for the CME on the 7th. Though shock arrival velocities sometimes pack a punch on arrival, so I don't really know. We'll see how things play out

Edited February 11 by Jesterface23