AR 3421

[tniickck]

already a delta, though the group is 1 day old, keep going

[SpaceWeather5464]

The new sunspot is creating C class flares every few minutes.

[Philalethes]

Well that one was certainly aimed straight at us...but naturally it appears to be impulsive.

[tniickck]

that was good 

[MinYoongi]

Any CME?

I think I don’t see much dimming in suvi and looking at lasco I’m not sure but looks like not really a CME ? @Philalethes @Jesterface23

[Philalethes]

18 minutes ago, MinYoongi said:

Any CME?

I think I don’t see much dimming in suvi and looking at lasco I’m not sure but looks like not really a CME ? @Philalethes @Jesterface23

Doesn't look like anything eruptive at all to me, nothing seems to be showing on LASCO either.

[tniickck]

1 hour ago, MinYoongi said:

Any CME?

I think I don’t see much dimming in suvi and looking at lasco I’m not sure but looks like not really a CME ? @Philalethes @Jesterface23

no, sadly

[tniickck]

and another one, m1.2

i can see little coronal dimming, actually

Space Weather Message Code: ALTTP2

Serial Number: 1243

Issue Time: 2023 Sep 05 2039 UTC

 

ALERT: Type II Radio Emission

Begin Time: 2023 Sep 05 2021 UTC

Estimated Velocity: 1314 km/s

 

NOAA Space Weather Scale descriptions can be found at

www.swpc.noaa.gov/noaa-scales-explanation

 

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

HELL YEAH

[MinYoongi]

22 hours ago, tniickck said:

and another one, m1.2

i can see little coronal dimming, actually

Space Weather Message Code: ALTTP2

Serial Number: 1243

Issue Time: 2023 Sep 05 2039 UTC

 

ALERT: Type II Radio Emission

Begin Time: 2023 Sep 05 2021 UTC

Estimated Velocity: 1314 km/s

 

NOAA Space Weather Scale descriptions can be found at

www.swpc.noaa.gov/noaa-scales-explanation

 

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

HELL YEAH

so even though its farsided we get a glancing blow?

[tniickck]

it is pretty strange: it is claimed to happen on farside, but we got Type 2 radio sweep and minor proton (0.631 pfu max) rise

and answering your question, it is not physically possible

this happened just in time the M1.2 flare erupted just opposite the earth

summing up the theme of CME 05/2036 UT и М1,2 в AR3421 05/1945 UT

 

1) SIDC: 2023 Sep 06 1226 UT

 

M1.2 05/1945 UT AR3421, was associated with the full halo CME. CME was first seen in the SOHO/LASCO C2 at 05/2024 UT. CME had velocity of ~1300 km/s (as reported CACTUS), and it is possible that, due to its large width and source region situated at the center of the solar disc, it will arrive to Earth. The expected arrival time of this CME at Earth is in the early afternoon of 07.09.23

 

2) SWPC NOAA: 2023 Sep 06 1230 UT

 

A type II radio sweep, 

estimated speed 1,314 Km/s beginning at 05/2021 UT. A likely associated CME is evident in LASCO C2. The source location for this event is on far side of the disk. 

sources:

http://www.sidc.be/products/presto

https://www.swpc.noaa.gov/products/forecast-discussion

https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/WSA-ENLIL/26810/1

Edited September 6, 2023 by tniickck

[tniickck]

SolO gets farside flare's CME instead of the earth

[hamateur 1953]

I have been watching the low level proton bump for the last day or so as well.  Insufficient to have any effect at our magnetic poles, but interesting.