11 May 2019
⇐20190510 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190512⇒

NOAA
2 Active Regions
12740
12741

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 W31S67
(186",-859") 		E64-W47
(111) 		2.0 -1.2 -4.8e21
2 E33N60
(-255",847") 		E70-W14
(84) 		1.7 0.6 2.3e21
3 E07N26
(-108",469") 		E12-E02
(10) 		0.6 0.9 1.6e20
4 E12N34
(-160",569") 		E14-E09
(5) 		0.1 -0.8 -2.9e19

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 11-May-2019 22:00 UT .