14 December 2018
⇐20181213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181215⇒

NOAA
1 Active Region
12730

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 W09S44
(114",-663") 		E41-W45
(86) 		12.2 -0.5 -3.1e21
2 W06N65
(41",888") 		E69-W59
(128) 		2.3 0.9 3.7e21
3 E32N00
(-521",12") 		E55-E20
(35) 		2.3 -0.2 -1.4e20
4 W12N43
(151",680") 		W04-W21
(17) 		0.3 0.6 1.1e20
5 E12N05
(-204",96") 		E14-E11
(3) 		0.0 -1.4 -1.2e19

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 14-Dec-2018 20:30 UT .