1 September 2022
⇐20220831 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220902⇒

NOAA
4 Active Regions
13089
13090
13086
13087

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 E00N47
(-3",607") 		E33-W45
(78) 		14.0 1.5 4.1e21
2 E34N30
(-459",383") 		E43-E26
(17) 		0.6 2.8 3.4e20
3 W01S31
(10",-595") 		E10-W07
(17) 		0.2 6.0 2.3e20
4 E46N33
(-577",447") 		E49-E42
(7) 		0.1 4.3 8.7e19

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 1-Sep-2022 23:30 UT .