11 January 2018
⇐20180110 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180112⇒

NOAA
1 Active Region
12694

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 W02N60
(15",880") 		E41-W46
(87) 		2.9 0.9 4.3e33
2 W23N17
(371",345") 		W07-W37
(30) 		2.4 1.0 7.3e32
3 W42S69
(236",-887") 		E38-W65
(103) 		1.7 -1.2 -5.2e33
4 E50S05
(-745",-46") 		E52-E48
(4) 		0.1 -2.4 -1.2e32
5 W05N01
(88",82") 		W04-W07
(3) 		0.0 -1.5 -1.1e31

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 11-Jan-2018 20:30 UT .