15 March 2019
⇐20190314 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190316⇒

NOAA
1 Active Region
12734

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 W15S02
(244",83") 		W00-W28
(28) 		3.9 0.9 7.3e20
2 W08S70
(48",-859") 		E68-W54
(122) 		3.3 -0.9 -4.2e21
3 E06N56
(-52",862") 		E39-W35
(74) 		2.5 0.8 3.0e21
4 E05N29
(-71",576") 		E08-W01
(9) 		0.2 -1.0 -6.2e19
5 W20S50
(217",-660") 		W17-W24
(7) 		0.1 -1.3 -3.8e19

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 15-Mar-2019 20:30 UT .