7 August 2018
⇐20180806 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180808⇒

NOAA
1 Active Region
12717

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 W07N69
(41",846") 		E73-W55
(128) 		3.8 1.1 5.8e21
2 E11S08
(-179",-231") 		E20-W07
(27) 		3.2 -1.2 -8.6e20
3 W32N02
(506",-55") 		W30-W35
(5) 		0.1 -1.6 -3.7e19
4 W30N05
(477",-3") 		W28-W32
(4) 		0.0 -1.0 -1.1e19

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 7-Aug-2018 23:10 UT .