18 November 2018
⇐20181117 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181119⇒

NOAA
2 Active Regions
12727
12726

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 W02S39
(31",-645") 		E32-W26
(58) 		9.8 -0.4 -1.7e21
2 W18N67
(117",877") 		E75-W64
(139) 		2.8 1.1 5.2e21
3 W45S15
(661",-282") 		W39-W50
(11) 		0.2 -1.1 -1.5e20
4 W40N04
(628",43") 		W39-W43
(4) 		0.1 -0.7 -2.0e19
5 E05N38
(-68",570") 		E07-E01
(6) 		0.0 -0.6 -8.8e18

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 18-Nov-2018 20:30 UT .