26 March 2018
⇐20180325 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180327⇒

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 E16N41
(-197",711") 		E42-W19
(61) 		7.4 0.7 3.3e33
2 W01S70
(4",-859") 		E61-W60
(121) 		3.7 -1.2 -6.6e33
3 W01S26
(7",-324") 		E02-W02
(4) 		0.1 -0.9 -2.0e31

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-Mar-2018 23:30 UT .