16 March 2019
⇐20190315 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190317⇒

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 W05S71
(27",-868") 		E88-W66
(154) 		3.0 -1.1 -5.1e21
2 W11N56
(105",861") 		E29-W41
(70) 		2.5 0.9 3.2e21
3 W26S02
(421",67") 		W18-W38
(20) 		1.8 1.0 5.2e20

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-Mar-2019 20:30 UT .