30 July 2018
⇐20180729 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180731⇒

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 E04S15
(-65",-330") 		E36-W28
(64) 		11.3 -0.0 -3.3e19
2 E02N67
(-15",834") 		E67-W59
(126) 		4.3 1.0 5.3e21
3 E24S02
(-382",-112") 		E32-E15
(17) 		1.1 -1.2 -3.3e20
4 E30S69
(-168",-909") 		E45-E22
(23) 		0.1 -1.9 -1.1e21
5 W04S05
(65",-178") 		W02-W05
(3) 		0.0 -1.4 -1.0e19

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 30-Jul-2018 16:12 UT .