25 March 2019
⇐20190324 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190326⇒

NOAA
2 Active Regions
12736
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 W03S24
(52",-289") 		E19-W20
(39) 		8.5 -0.4 -8.2e20
2 E13S67
(-81",-840") 		E78-W60
(138) 		4.4 -1.0 -5.3e21
3 W18N61
(142",887") 		E30-W59
(89) 		1.4 0.7 2.3e21
4 E34S27
(-480",-354") 		E35-E32
(3) 		0.1 -2.4 -6.0e19
5 W22N17
(351",384") 		W20-W24
(4) 		0.0 -3.2 -4.8e19
6 W00N43
(3",741") 		E02-W02
(4) 		0.0 -0.5 -1.3e19

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-Mar-2019 20:30 UT .