8 November 2021
⇐20211107 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211109⇒

NOAA
3 Active Regions
12893
12894
12891

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 W15N05
(244",27") 		E16-W40
(56) 		5.2 0.2 1.3e20
2 E26S03
(-426",-108") 		E39-E12
(27) 		1.9 0.1 3.1e19
3 E10S30
(-150",-536") 		E20-W02
(22) 		1.2 -1.6 -3.5e20
4 E55N65
(-334",863") 		E66-E51
(15) 		0.4 0.8 1.8e20
5 W05S20
(78",-390") 		W02-W07
(5) 		0.2 -2.2 -5.7e19
6 W17N20
(268",273") 		W14-W20
(6) 		0.1 -3.4 -8.2e19
7 W17S13
(271",-282") 		W15-W18
(3) 		0.0 -3.3 -2.5e19
8 E39S05
(-614",-135") 		E41-E37
(4) 		0.0 -0.6 -5.9e18

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 8-Nov-2021 20:30 UT .