22 November 2019
⇐20191121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191123⇒

NOAA
1 Active Region
12752

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 E05S23
(-71",-415") 		E41-W31
(72) 		9.5 -0.3 -4.0e20
2 E27S16
(-424",-301") 		E41-E05
(36) 		2.6 -0.6 -2.7e20
3 W36N66
(229",877") 		E66-W59
(125) 		2.5 1.1 1.2e21
4 W36S12
(562",-235") 		W29-W44
(15) 		0.2 -1.6 -7.5e19
5 E49S65
(-314",-888") 		E65-E45
(20) 		0.1 -0.6 -5.5e19
6 W23N14
(367",211") 		W21-W25
(4) 		0.1 -1.2 -1.9e19
7 E25N25
(-379",381") 		E28-E23
(5) 		0.1 -0.6 -5.8e18
8 W25S18
(393",-334") 		W24-W27
(3) 		0.0 -1.3 -9.7e18
9 E21S21
(-332",-385") 		E24-E19
(5) 		0.0 -0.7 -4.3e18

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 22-Nov-2019 23:40 UT .