26 July 2018
⇐20180725 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180727⇒

NOAA
1 Active Region
12716

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 E14N63
(-102",804") 		E71-W86
(157) 		4.7 1.0 5.1e21
2 W16S55
(152",-820") 		E46-W34
(80) 		2.9 -0.8 -3.2e21
3 W28S22
(410",-421") 		W09-W45
(36) 		2.2 -0.6 -5.1e20
4 E33S05
(-518",-150") 		E36-E31
(5) 		0.1 -0.7 -2.0e19
5 W33N06
(510",18") 		W29-W35
(6) 		0.1 -0.8 -1.7e19
6 W21N08
(340",43") 		W20-W23
(3) 		0.0 -1.4 -1.3e19

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 26-Jul-2018 23:10 UT .