14 October 2018
⇐20181013 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181015⇒

NOAA
2 Active Regions
12724
12725

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 E41N55
(-363",744") 		E84-E47
(37) 		1.7 0.7 1.3e21
2 W38S14
(572",-311") 		W25-W48
(23) 		1.6 -0.5 -3.9e20
3 W33S32
(447",-576") 		W23-W44
(21) 		0.9 -1.2 -6.7e20
4 W32N76
(122",909") 		E87-W89
(176) 		0.9 1.0 3.1e21
5 W52S09
(744",-218") 		W41-W60
(19) 		0.8 -1.3 -8.0e20
6 E07S67
(-45",-919") 		E30-W21
(51) 		0.4 -1.2 -1.9e21
7 W22N06
(360",12") 		W19-W27
(8) 		0.1 -1.1 -3.1e19

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 14-Oct-2018 23:10 UT .