29 May 2020
⇐20200528 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200530⇒

NOAA
0 Active Regions

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19S04
(-311",-56") 		E39-W01
(40) 		3.9 -0.1 -8.4e19
2 W22S12
(342",-178") 		E04-W34
(38) 		3.7 -0.1 -5.1e19
3 E07S65
(-52",-849") 		E50-W78
(128) 		3.1 -0.8 -3.6e21
4 E16N60
(-133",824") 		E68-W15
(83) 		2.3 0.9 2.5e21
5 W42S37
(513",-558") 		W40-W45
(5) 		0.1 -0.4 -2.5e19
6 W24S21
(353",-331") 		W19-W28
(9) 		0.1 -1.1 -2.2e19

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 29-May-2020 19:30 UT .