22 November 2018
⇐20181121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181123⇒

NOAA
0 Active Regions

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 W03N53
(31",762") 		E77-W67
(144) 		5.3 0.6 2.1e21
2 E12S10
(-205",-195") 		E20-E04
(16) 		1.8 -1.3 -5.0e20
3 E23S66
(-154",-902") 		E27-W24
(51) 		0.8 -0.6 -1.4e21
4 W39S14
(589",-258") 		W33-W45
(12) 		0.3 0.5 6.7e19
5 W62S34
(715",-553") 		W54-W69
(15) 		0.2 -1.1 -4.3e20
6 W28S30
(390",-515") 		W24-W31
(7) 		0.1 -1.1 -5.9e19

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 22-Nov-2018 20:30 UT .