2 September 2015
⇐20150901 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150903⇒

NOAA
4 Active Regions
12406
12407
12409
12405

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 E13N53
(-126",683") 		E76-W40
(116) 		6.9 1.0 4.1e33
2 W41S00
(630",-94") 		W35-W48
(13) 		0.7 3.6 1.3e33
3 W42N18
(609",214") 		W41-W45
(4) 		0.2 3.4 3.0e32
4 E37N26
(-514",330") 		E40-E35
(5) 		0.1 4.3 1.1e32

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 2-Sep-2015 18:30 UT .