2 December 2022
⇐20221201 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221203⇒

NOAA
4 Active Regions
13152
13153
13154
13155

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 E29N11
(-457",183") 		E45-E10
(35) 		6.4 -2.4 -2.6e21
2 W51S12
(746",-204") 		W29-W66
(37) 		2.5 1.6 9.8e20
3 W33S74
(142",-940") 		W26-W49
(23) 		0.1 -0.8 -3.5e19
4 W51N43
(552",656") 		W48-W53
(5) 		0.0 -0.6 -8.1e18

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 2-Dec-2022 20:30 UT .