13 March 2019
⇐20190312 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190314⇒

NOAA
1 Active Region
12734

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 W19S62
(150",-792") 		E58-W57
(115) 		5.8 -0.8 -4.3e21
2 E20N01
(-334",129") 		E29-W05
(34) 		2.5 0.6 3.7e20
3 E34N59
(-280",871") 		E58-W09
(67) 		1.8 0.4 2.3e21
4 W30S13
(475",-120") 		W08-W43
(35) 		1.7 -0.6 -3.1e20
5 W31N06
(499",210") 		W26-W37
(11) 		0.5 -0.6 -9.3e19
6 W23N13
(372",324") 		W19-W27
(8) 		0.2 -1.5 -7.4e19
7 W45S36
(549",-502") 		W40-W50
(10) 		0.1 -1.2 -5.9e19
8 W16N03
(266",171") 		W13-W18
(5) 		0.0 -0.9 -7.5e18

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 13-Mar-2019 20:30 UT .