25 July 2019
⇐20190724 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190726⇒

NOAA
1 Active Region
12745

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 W19S10
(303",-246") 		E11-W35
(46) 		6.0 -0.1 -5.1e19
2 E08N69
(-45",851") 		E82-W39
(121) 		3.0 1.1 1.2e21
3 E43S05
(-640",-147") 		E54-E32
(22) 		1.6 -1.2 -4.1e20
4 W01S66
(4",-895") 		E54-W59
(113) 		1.1 -0.7 -3.7e20
5 E05N26
(-73",342") 		E07-E02
(5) 		0.0 -1.4 -1.1e19

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 25-Jul-2019 23:30 UT .