11 December 2020
⇐20201210 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201212⇒

NOAA
2 Active Regions
12790
12791

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 E08N16
(-135",285") 		E43-W29
(72) 		13.9 0.0 8.2e19
2 E40S58
(-327",-826") 		E69-E26
(43) 		1.3 -0.8 -3.7e20
3 E29N69
(-173",911") 		E70-E02
(68) 		0.7 0.7 2.6e20
4 W50N17
(712",288") 		W46-W54
(8) 		0.1 -0.7 -2.1e19
5 E11S32
(-160",-508") 		E14-E07
(7) 		0.1 -0.9 -1.9e19
6 E54N21
(-742",354") 		E58-E50
(8) 		0.1 -1.0 -2.9e19
7 W23S79
(70",-957") 		E11-W32
(43) 		0.1 -0.9 -5.1e19
8 W05N35
(70",572") 		W03-W07
(4) 		0.0 -1.1 -8.8e18

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 11-Dec-2020 20:30 UT .