26 June 2018
⇐20180625 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180627⇒

NOAA
1 Active Region
12715

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 W14S60
(112",-835") 		E62-W54
(116) 		3.3 -0.9 -4.4e21
2 W33S18
(489",-318") 		W08-W50
(42) 		2.2 -0.4 -3.5e20
3 E17S23
(-255",-405") 		E26-E00
(26) 		2.0 -0.4 -2.8e20
4 E41N58
(-334",782") 		E67-E53
(14) 		1.5 0.8 1.9e21
5 W32S24
(455",-420") 		W29-W35
(6) 		0.0 -0.5 -1.1e19
6 E09S47
(-97",-721") 		E11-E05
(6) 		0.0 -1.9 -5.5e19

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-Jun-2018 19:30 UT .