24 October 2020
⇐20201023 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201025⇒

NOAA
1 Active Region
12776

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 W12N56
(113",752") 		E60-W45
(105) 		7.9 0.9 1.8e21
2 W25N08
(403",61") 		W12-W40
(28) 		1.7 0.1 3.1e19
3 W15S13
(238",-295") 		W01-W23
(22) 		1.6 0.4 9.8e19
4 W50N48
(494",682") 		W39-W60
(21) 		0.4 0.5 5.9e19
5 E04S68
(-25",-921") 		E21-W11
(32) 		0.2 -0.8 -1.0e20
6 E25S22
(-377",-432") 		E28-E20
(8) 		0.2 0.8 2.6e19
7 E36N06
(-571",30") 		E39-E32
(7) 		0.2 -0.5 -1.6e19
8 W31N22
(468",286") 		W27-W36
(9) 		0.1 -0.7 -1.7e19
9 E23S14
(-372",-301") 		E25-E22
(3) 		0.0 0.8 5.7e18
10 E44S69
(-235",-921") 		E48-E27
(21) 		0.0 -1.0 -3.6e19

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-Oct-2020 23:30 UT .