24 November 2021
⇐20211123 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211125⇒

NOAA
3 Active Regions
12896
12897
12898

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 E02N62
(-13",844") 		112
(1.2e05) 		0.7 3.7 4.4e21
2 W22S12
(360",-231") 		E04-W38
(42) 		3.3 -1.0 -5.4e20
3 E48N17
(-694",259") 		E54-E38
(16) 		0.7 0.6 9.6e19
4 W05N10
(84",144") 		W01-W08
(7) 		0.1 -1.5 -2.0e19
5 E36N15
(-559",225") 		E40-E33
(7) 		0.1 -0.6 -8.5e18
6 E26S06
(-418",-124") 		E27-E24
(3) 		0.0 -1.2 -8.8e18
7 E09N14
(-150",205") 		E12-E06
(6) 		0.0 -1.4 -9.3e18

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-Nov-2021 20:30 UT .