24 May 2016
⇐20160523 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160525⇒

NOAA
2 Active Regions
12546
12547

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 E23N24
(-338",403") 		E30-E06
(24) 		2.2 -1.4 -1.0e33
2 E30S72
(-145",-893") 		E44-W52
(96) 		1.1 0.4 1.4e33
3 W07S17
(104",-260") 		E03-W13
(16) 		0.5 19.5 2.3e33
4 W02S05
(40",-58") 		E01-W04
(5) 		0.4 -2.8 -1.6e32
5 W23S15
(351",-229") 		W17-W28
(11) 		0.2 -2.9 -1.8e32
6 W41N62
(294",846") 		W29-W62
(33) 		0.2 -1.2 -5.2e32

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-2016 23:17 UT .