25 August 2018
⇐20180824 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180826⇒

NOAA
2 Active Regions
12719
12720

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 E13S09
(-214",-258") 		E43-W26
(69) 		11.6 -0.1 -3.2e20
2 W10N59
(88",748") 		E31-W52
(83) 		7.4 1.1 5.9e21
3 W14S63
(106",-893") 		E19-W32
(51) 		0.8 -0.8 -1.8e21
4 E37N34
(-472",447") 		E42-E31
(11) 		0.2 -0.6 -5.0e19
5 W23S37
(298",-654") 		W20-W25
(5) 		0.1 1.1 5.9e19

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 25-Aug-2018 23:10 UT .