24 August 2015
⇐20150823 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150825⇒

NOAA
3 Active Regions
12403
12404
12401

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33S28
(-459",-535") 		E54-E13
(41) 		2.4 -3.2 -4.6e33
2 W44S11
(652",-261") 		W32-W61
(29) 		2.3 3.8 5.1e33
3 E23N10
(-360",54") 		E26-E17
(9) 		0.9 -6.1 -1.3e33

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-2015 23:35 UT .