25 March 2021
⇐20210324 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210326⇒

NOAA
3 Active Regions
12811
12812
12810

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 W23S08
(376",-33") 		W09-W34
(25) 		2.5 -0.7 -2.9e20
2 E12S01
(-205",91") 		E22-W03
(25) 		2.2 -0.2 -6.4e19
3 E13N56
(-118",857") 		E34-W15
(49) 		1.8 0.4 2.7e20
4 E26S75
(-108",-897") 		E55-W75
(130) 		1.3 -1.0 -5.9e20
5 E21S33
(-286",-428") 		E37-E05
(32) 		1.1 -1.9 -4.0e20
6 W07S19
(110",-204") 		E00-W14
(14) 		0.7 -1.3 -1.3e20

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-2021 20:30 UT .