20 March 2019
⇐20190319 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190321⇒

NOAA
1 Active Region
12735

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 W02S72
(10",-873") 		E70-W61
(131) 		2.4 -0.8 -3.3e21
2 E42S26
(-582",-337") 		E61-E26
(35) 		1.9 -0.1 -1.3e20
3 E37N55
(-337",836") 		E44-E27
(17) 		0.2 0.3 1.7e20
4 E60S18
(-793",-245") 		E68-E54
(14) 		0.1 -0.6 -7.8e19

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 20-Mar-2019 20:30 UT .