28 June 2018
⇐20180627 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180629⇒

NOAA
1 Active Region
12715

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 E07S14
(-106",-262") 		E23-W16
(39) 		4.2 -0.2 -2.0e20
2 W27S59
(224",-825") 		E42-W40
(82) 		3.1 -0.7 -3.7e21
3 E34N61
(-255",810") 		E72-W27
(99) 		2.9 0.8 3.4e21
4 E31S08
(-486",-172") 		E41-E22
(19) 		0.5 0.8 1.4e20
5 E09S07
(-151",-160") 		E10-E08
(2) 		0.0 -1.1 -1.0e19
6 W29S19
(435",-346") 		W27-W31
(4) 		0.0 -3.6 -5.0e19

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 28-Jun-2018 23:10 UT .