16 August 2019
⇐20190815 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190817⇒

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 E09S40
(-115",-688") 		E45-W42
(87) 		12.1 -0.4 -1.1e21
2 W15N69
(87",844") 		E85-W51
(136) 		3.3 1.1 1.2e21
3 W08N18
(121",181") 		E14-W21
(35) 		2.0 -0.2 -6.0e19
4 W27N30
(381",379") 		W24-W30
(6) 		0.1 -1.1 -1.6e19
5 W18N38
(232",502") 		W16-W21
(5) 		0.1 -1.1 -1.1e19

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 16-Aug-2019 23:40 UT .