12 December 2018
⇐20181211 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181213⇒

NOAA
1 Active Region
12730

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 E09S44
(-108",-671") 		E42-W72
(114) 		11.8 -0.4 -2.3e21
2 E03N62
(-22",868") 		E64-W71
(135) 		3.0 0.9 3.8e21
3 E09N36
(-129",579") 		E12-E06
(6) 		0.1 -0.7 -1.6e19

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 12-Dec-2018 20:30 UT .