10 February 2018
⇐20180209 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180211⇒

NOAA
2 Active Regions
12699
12698

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 W29S71
(153",-883") 		E34-W87
(121) 		2.3 -1.3 -6.0e33
2 E44N11
(-661",265") 		E64-E21
(43) 		2.2 -1.6 -2.0e33
3 W31N60
(255",883") 		W07-W67
(60) 		1.0 0.7 1.9e33
4 W23S05
(383",22") 		W17-W28
(11) 		0.3 -1.5 -1.0e32
5 W33N15
(513",348") 		W28-W38
(10) 		0.2 -0.7 -6.2e31
6 W17N02
(285",141") 		W14-W19
(5) 		0.1 -3.0 -8.6e31

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 10-Feb-2018 20:30 UT .