10 August 2017
⇐20170809 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170811⇒

NOAA
1 Active Region
12670

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 E59N31
(-690",445") 		E74-E37
(37) 		1.9 3.1 6.8e33
2 W04S09
(66",-256") 		E07-W12
(19) 		1.8 -0.9 -3.3e32
3 W20S23
(295",-460") 		W04-W28
(24) 		1.2 -1.6 -6.9e32
4 W19N09
(304",45") 		W11-W25
(14) 		0.6 -1.6 -2.3e32
5 E29S63
(-209",-882") 		E43-E23
(20) 		0.5 -0.9 -1.6e33
6 W28N05
(448",-15") 		W27-W30
(3) 		0.0 -2.3 -2.5e31

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 10-Aug-2017 23:30 UT .