30 March 2019
⇐20190329 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190331⇒

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 W01S44
(17",-582") 		E35-W49
(84) 		17.4 -0.4 -2.9e21
2 W34N13
(525",306") 		W20-W51
(31) 		2.0 -0.6 -4.5e20
3 W19N23
(286",477") 		W16-W21
(5) 		0.1 -0.9 -1.6e19

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 30-Mar-2019 20:30 UT .