26 February 2019
⇐20190225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190227⇒

NOAA
0 Active Regions

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 W23S20
(357",-225") 		E07-W54
(61) 		10.7 -0.6 -1.7e21
2 E25S14
(-406",-120") 		E49-E04
(45) 		5.2 -0.1 -2.0e20
3 W03S67
(19",-838") 		E88-W50
(138) 		4.7 -1.3 -7.0e21
4 W27N63
(195",909") 		W16-W52
(36) 		0.4 0.4 5.5e20
5 E35N17
(-529",370") 		E41-E30
(11) 		0.2 -0.7 -5.6e19
6 E39S04
(-603",22") 		E41-E35
(6) 		0.1 -0.8 -3.8e19

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 26-Feb-2019 20:30 UT .