23 May 2016
⇐20160522 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160524⇒

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 E38N23
(-535",394") 		E45-E26
(19) 		1.5 2.2 1.7e33
2 E05S17
(-86",-248") 		E16-W14
(30) 		0.9 -7.1 -1.4e33
3 E43S71
(-206",-892") 		E69-W28
(97) 		0.8 0.3 1.2e33
4 W58N41
(609",634") 		W37-W81
(44) 		0.7 0.3 5.1e32
5 W31N62
(229",847") 		W18-W46
(28) 		0.2 -0.9 -3.6e32
6 W29N51
(292",753") 		W22-W37
(15) 		0.1 -1.3 -1.7e32

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 23-May-2016 23:17 UT .