25 June 2021
⇐20210624 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210626⇒

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 W23S08
(362",-163") 		E23-W61
(84) 		12.1 -0.1 -1.4e20
2 E11N55
(-100",748") 		E29-W70
(99) 		6.8 0.5 7.9e20
3 W26S68
(153",-888") 		W07-W37
(30) 		0.5 -0.6 -1.5e20
4 E14N14
(-227",194") 		E20-E07
(13) 		0.3 -1.0 -5.3e19
5 W35S56
(306",-797") 		W32-W37
(5) 		0.0 -0.3 -5.5e18

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-Jun-2021 23:30 UT .