28 October 2019
⇐20191027 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191029⇒

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 E03S11
(-43",-265") 		E41-W33
(74) 		13.8 -0.3 -6.2e20
2 E19N67
(-121",861") 		E78-W63
(141) 		2.8 1.0 1.0e21
3 W15N31
(209",438") 		E04-W26
(30) 		2.3 0.2 6.3e19
4 E15S62
(-114",-886") 		E60-W40
(100) 		2.1 -0.9 -7.1e20
5 W30N41
(367",587") 		W26-W34
(8) 		0.2 -0.6 -2.1e19
6 E25S14
(-403",-303") 		E28-E23
(5) 		0.1 -0.8 -1.2e19
7 E25N43
(-304",598") 		E28-E23
(5) 		0.1 1.4 1.8e19
8 E48S10
(-706",-217") 		E51-E44
(7) 		0.1 1.4 2.0e19
9 E48S29
(-625",-511") 		E49-E45
(4) 		0.0 -0.6 -9.1e18

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 28-Oct-2019 23:40 UT .