26 November 2020
⇐20201125 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201127⇒

NOAA
4 Active Regions
12783
12785
12786
12784

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 W16S04
(262",-96") 		E22-W41
(63) 		9.0 0.1 8.0e19
2 W31N68
(186",894") 		E59-W58
(117) 		2.0 0.6 5.3e20
3 E20S19
(-308",-337") 		E23-E16
(7) 		0.2 -7.0 -2.0e20
4 E21S71
(-111",-927") 		E27-E18
(9) 		0.0 -1.3 -3.0e19

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 26-Nov-2020 20:30 UT .