9 October 2017
⇐20171008 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171010⇒

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 W01N51
(12",684") 		E45-W42
(87) 		12.8 1.4 9.3e33
2 E21S62
(-160",-892") 		E52-W02
(54) 		0.5 -0.6 -8.4e32
3 E04S40
(-57",-695") 		E07-E01
(6) 		0.1 -0.4 -2.2e31

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-Oct-2017 23:30 UT .