23 August 2022
⇐20220822 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220824⇒

NOAA
4 Active Regions
13081
13082
13085
13084

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 W18N12
(288",81") 		E16-W38
(54) 		4.6 0.6 4.4e20
2 E42S38
(-498",-648") 		E60-E39
(21) 		2.7 -1.6 -1.3e21
3 E29N35
(-381",454") 		E37-E22
(15) 		0.4 -0.7 -5.1e19
4 W14S59
(121",-865") 		W09-W21
(12) 		0.3 -0.9 -1.0e20
5 E58S21
(-751",-390") 		E61-E55
(6) 		0.1 -1.1 -2.1e19
6 E09S05
(-148",-202") 		E11-E07
(4) 		0.0 1.7 1.1e19
7 W06S72
(30",-931") 		E06-W11
(17) 		0.0 -1.8 -5.6e19
8 W30S03
(471",-145") 		W28-W31
(3) 		0.0 -2.5 -1.6e19

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 23-Aug-2022 23:30 UT .