7 November 2021
⇐20211106 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211108⇒

NOAA
3 Active Regions
12891
12893
12894

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 W20S06
(324",-162") 		E26-W50
(76) 		7.0 -0.0 -4.4e18
2 E24S29
(-344",-525") 		E34-E13
(21) 		0.7 -3.1 -4.0e20
3 W43N76
(160",927") 		E42-W81
(123) 		0.5 0.9 3.2e20
4 W04N21
(61",283") 		E01-W07
(8) 		0.1 -4.7 -1.1e20
5 E23N20
(-349",277") 		E25-E20
(5) 		0.1 -0.7 -8.5e18
6 E28N23
(-417",335") 		E31-E25
(6) 		0.1 -1.9 -2.3e19
7 E01S75
(-3",-949") 		E12-W09
(21) 		0.0 -0.4 -1.0e19

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 7-Nov-2021 20:30 UT .