13 March 2018
⇐20180312 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180314⇒

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 W16N15
(258",357") 		E24-W50
(74) 		7.7 -1.3 -2.8e33
2 W00S78
(1",-912") 		E88-W88
(176) 		1.1 -1.3 -3.8e33
3 W36N64
(252",901") 		W11-W57
(46) 		0.4 0.3 5.8e32

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-2018 20:30 UT .