4 March 2015
⇐20150303 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150305⇒

NOAA
3 Active Regions
12292
12293
12294

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19N37
(-256",677") 		E38-W06
(44) 		5.6 3.3 1.1e34
2 W51S61
(372",-799") 		E67-W71
(138) 		4.7 -1.2 -9.5e33
3 E12S09
(-196",-35") 		E16-E08
(8) 		0.2 59.6 1.8e33
4 E37S21
(-551",-253") 		E44-E30
(14) 		0.2 6.6 4.3e32
5 E03N33
(-45",626") 		E05-E01
(4) 		0.0 3.0 4.6e31

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 4-Mar-2015 22:35 UT .