24 June 2021
⇐20210623 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210625⇒

NOAA
1 Active Region
12833

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 W07S10
(106",-195") 		E34-W48
(82) 		15.0 -0.0 -1.4e19
2 E28N55
(-252",759") 		E44-W77
(121) 		5.9 0.5 7.9e20
3 W07S66
(49",-880") 		E12-W17
(29) 		0.6 -0.4 -1.1e20
4 W01S35
(10",-575") 		E03-W04
(7) 		0.2 1.5 5.5e19
5 W19N39
(237",573") 		W14-W25
(11) 		0.1 -1.6 -3.1e19
6 W23S57
(198",-812") 		W17-W27
(10) 		0.1 -1.1 -3.2e19

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 24-Jun-2021 23:30 UT .