24 August 2018
⇐20180823 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180825⇒

NOAA
2 Active Regions
12719
12718

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 W10N64
(72",793") 		E84-W45
(129) 		5.6 1.3 7.0e21
2 E12N18
(-187",176") 		E23-W11
(34) 		2.2 -0.1 -3.1e19
3 E12N03
(-199",-63") 		E24-W03
(27) 		1.6 -0.2 -6.5e19
4 W05S62
(38",-886") 		E45-W39
(84) 		1.2 -1.0 -2.8e21
5 E48N07
(-697",31") 		E54-E42
(12) 		0.4 -1.2 -2.8e20
6 W14N34
(186",438") 		W07-W20
(13) 		0.4 0.8 9.3e19

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 24-Aug-2018 23:10 UT .