9 July 2018
⇐20180708 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180710⇒

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 E11S08
(-184",-199") 		E31-W13
(44) 		8.5 0.0 7.1e19
2 W20N68
(119",854") 		E67-W74
(141) 		2.9 0.8 4.0e21
3 W30N11
(470",128") 		W29-W31
(2) 		0.0 -0.6 -9.0e18

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 9-Jul-2018 23:10 UT .