24 May 2015
⇐20150523 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150525⇒

NOAA
7 Active Regions
12348
12349
12352
12353
12354
12350
12351

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E34N36
(-435",575") 		E62-E03
(59) 		5.1 4.1 1.4e34
2 E15S14
(-240",-202") 		E35-W02
(37) 		2.3 8.9 4.6e33
3 W03S66
(18",-852") 		E52-W56
(108) 		2.2 -0.9 -2.9e33
4 E19N65
(-130",869") 		E30-E07
(23) 		0.4 0.7 6.3e32

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-May-2015 23:35 UT .