23 June 2021
⇐20210622 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210624⇒

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 E06S13
(-100",-246") 		E47-W32
(79) 		15.0 -0.1 -3.0e20
2 E12N67
(-76",859") 		E78-W79
(157) 		2.7 0.9 8.9e20
3 E20S69
(-115",-893") 		E51-W25
(76) 		0.4 -0.8 -1.8e20
4 E54N31
(-655",474") 		E57-E48
(9) 		0.2 -1.0 -6.1e19
5 E43N16
(-621",234") 		E46-E38
(8) 		0.1 -0.5 -1.7e19
6 E06S36
(-76",-583") 		E09-E02
(7) 		0.1 -0.8 -1.7e19
7 E44S15
(-634",-262") 		E47-E41
(6) 		0.1 -0.6 -6.4e18

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 23-Jun-2021 19:30 UT .