1 November 2019
⇐20191031 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191102⇒

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 W18S14
(295",-308") 		W00-W31
(31) 		3.8 -0.1 -3.3e19
2 W12N66
(81",853") 		E66-W49
(115) 		3.3 1.1 1.3e21
3 W12S66
(82",-910") 		E58-W35
(93) 		1.0 -0.7 -3.3e20
4 W50S58
(390",-846") 		W37-W63
(26) 		0.2 -0.7 -9.4e19
5 W25S44
(291",-723") 		W20-W31
(11) 		0.1 -0.9 -2.8e19
6 W30N27
(430",378") 		W27-W32
(5) 		0.1 -0.9 -8.9e18

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 1-Nov-2019 23:40 UT .