14 December 2017
⇐20171213 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171215⇒

NOAA
1 Active Region
12691

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 W05N18
(74",311") 		E36-W26
(62) 		5.7 1.0 1.3e33
2 W29N62
(218",870") 		E62-W74
(136) 		3.1 0.9 5.1e33
3 W24S68
(147",-902") 		E59-W43
(102) 		1.5 -1.2 -4.4e33
4 W07S28
(105",-444") 		E04-W14
(18) 		1.1 0.7 2.1e32
5 E06S11
(-99",-177") 		E11-W01
(12) 		0.7 1.0 1.2e32
6 W16S21
(249",-345") 		W14-W18
(4) 		0.1 -1.4 -2.1e31

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 14-Dec-2017 20:30 UT .