Unspecified geomagnetic activity

[MinYoongi]

1 hour ago, Jesterface23 said:

For consistent use, I'd say no. STEREO A is out in different conditions. There is even very slight differences between ACE and DSCOVR as they orbit around L1.

ive only now seen this, thank you 

[Jesterface23]

2 minutes ago, MinYoongi said:

@Jesterface23

[MinYoongi]

1 minute ago, Jesterface23 said:

is this similiar to last months G4? I dont remember the data (bz wise and speed) 

[RajSim]

Its a bummer entire Northeast of US is cloudy tonight. Wishing our european members a great show!

[Isatsuki San]

@Vancanneyt Sander What do you think of the conditions will reach kp9?

[Jesterface23]

1 minute ago, MinYoongi said:

is this similiar to last months G4? I dont remember the data (bz wise and speed) 

The last G4 was an embedded flux rope in a CH HSS, about -16nt Bz. 

[MinYoongi]

1 minute ago, Jesterface23 said:

The last G4 was an embedded flux rope in a CH HSS, about -16nt Bz. 

wasnt it more than -16 ?

[Jesterface23]

1 minute ago, MinYoongi said:

wasnt it more than -16 ?

Looking at the data, the lowest spike was -17.54nt I think from DSCOVR.

[MinYoongi]

2 minutes ago, Jesterface23 said:

Looking at the data, the lowest spike was -17.54nt I think from DSCOVR.

Ill shoot you a dm

[Isatsuki San]

4 minutes ago, MinYoongi said:

¿No fue más de -16?

-17 south bz when the g4 storm was on that day 24 of manzo so it can be said that this storm barely surpassed it

[3gMike]

19 minutes ago, RajSim said:

Its a bummer entire Northeast of US is cloudy tonight. Wishing our european members a great show!

It's very cloudy here in the U.K. at the moment. A slight chance cloud might lift in my locality around 3 a.m. !

[MinYoongi]

1 minute ago, 3gMike said:

It's very cloudy here in the U.K. at the moment. A slight chance cloud might lift in my locality around 3 a.m. !

fingers crossed for you mike

[Isatsuki San]

and the bz returned to the north, well that reassures me,

[Philalethes]

11 minutes ago, Isatsuki San said:

-17 south bz when the g4 storm was on that day 24 of manzo so it can be said that this storm barely surpassed it

The peak Dst was -163, and now we're at -170. There's also the Russell-McPherron effect near the equinoctes making geomagnetic activity more prevalent, so the fact that we're seeing more activity now despite last month's storm having occurred right after the equinox is further testament to this storm being stronger.

I did see the Bz flip just now, but it can flip back just as quickly; we'll see.

Edited April 23, 2023 by Philalethes Bythos

[Calder]

For me, it looks like clouds are going to roll in just as it gets dark… I only can hope they hold off long enough to catch a glimpse.🤞That’s if the bz is still south by then.

[Isatsuki San]

Just now, Philalethes Bythos said:

El pico Dst fue -163, y ahora estamos en -170. También está el  efecto Russell-McPherron cerca de los equinoccios, lo que hace que la actividad geomagnética sea más frecuente, por lo que el hecho de que estemos viendo más actividad ahora a pesar de que la tormenta del mes pasado ocurrió justo después del equinoccio es un testimonio más de que esta tormenta es más fuerte.

Vi el giro Bz hace un momento, pero puede retroceder con la misma rapidez; ya veremos.

Yes, the BZ towards the north is calm, I am at peace, it can be said that I am a hyperactive person and that when I am afraid of something I get very nervous, so as long as the BZ is in the north, calm down and I will be at peace.

[MinYoongi]

9 minutes ago, Philalethes Bythos said:

The peak Dst was -163, and now we're at -170. There's also the Russell-McPherron effect near the equinoctes making geomagnetic activity more prevalent, so the fact that we're seeing more activity now despite last month's storm having occurred right after the equinox is further testament to this storm being stronger.

I did see the Bz flip just now, but it can flip back just as quickly; we'll see.

what do you expect if it flips back down?

[Jesterface23]

9 minutes ago, Isatsuki San said:

and the bz returned to the north, well that reassures me,

The negative Bz puts on a good show. There is no need to worry, this CME is slow compared to some others.

[helios]

The sheath appears to be coming to an end, it will be interesting which orientation the magnetic field in the coming flux rope will have.

[Philalethes]

1 minute ago, MinYoongi said:

what do you expect if it flips back down?

More fancy lights in the sky...that I won't see anyway.

[MinYoongi]

1 minute ago, Jesterface23 said:

The negative Bz puts on a good show. There is no need to worry, this CME is slow compared to some others.

Have you seen the drop in temperature, speed, etc? 

[arjemma]

2 minutes ago, MinYoongi said:

Have you seen the drop in temperature, speed, etc? 

I think that is because it has switched from DSCOVR to ACE for the moment.

A drop in temperature could indicate that we have been hit by the CME core. The core could also explain the rapid shift of the Bz.

Edited April 23, 2023 by arjemma

[Jesterface23]

1 minute ago, MinYoongi said:

Have you seen the drop in temperature, speed, etc? 

DSCOVR having issues. ACE was down and is back up, so I'm guessing the SWPC will switch to that soon.

[MinYoongi]

2 minutes ago, arjemma said:

I think that is because it has switched from DSCOVR to ACE for the moment.

A drop in temperature could indicate that we have been hit by the CME core. The core could also explain the rapid shift of the Bz.

 

2 minutes ago, Jesterface23 said:

DSCOVR having issues. ACE was down and is back up, so I'm guessing the SWPC will switch to that soon.

ah, thanks. 
So we either hit the core (isnt that a bit early?) or its the different satellite. i remember unreliable data when they switch. the BZ seems to be accurate though since the KP is lessening.

[Jesterface23]

8 minutes ago, MinYoongi said:

So we either hit the core (isnt that a bit early?) or its the different satellite. i remember unreliable data when they switch. the BZ seems to be accurate though since the KP is lessening.

The sheath comes first and flux rope comes second. DSCOVR and ACE are slightly different, but the velocities seems to have risen to somewhere around 700km/s at this point.

Random guess of a flux rope arrival around 05:00Z, give or take a few hours

Edited April 23, 2023 by Jesterface23