17 November 2023
⇐20231116 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231118⇒

NOAA
4 Active Regions
13486
13487
13482
13488

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 E15N15
(-238",206") 		E24-W01
(25) 		1.9 2.3 7.0e20
2 E08N56
(-73",786") 		E14-W08
(22) 		0.6 -2.0 -3.2e20
3 W35S02
(557",-72") 		W28-W41
(13) 		0.4 2.4 1.6e20
4 E38S36
(-486",-601") 		E44-E31
(13) 		0.3 -3.1 -2.3e20
5 W22N33
(310",492") 		W18-W28
(10) 		0.2 -9.3 -4.1e20
6 E35N03
(-560",18") 		E40-E29
(11) 		0.1 -0.7 -1.4e19

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 17-Nov-2023 20:30 UT .