31 October 2016
⇐20161030 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161101⇒

NOAA
1 Active Region
12604

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 W19N58
(169",781") 		E76-W68
(144) 		9.0 0.8 6.2e33
2 W50S16
(712",-316") 		W30-W70
(40) 		2.4 2.2 4.2e33
3 E19S24
(-294",-464") 		E26-E14
(12) 		0.7 -2.5 -6.6e32
4 E42S42
(-488",-682") 		E55-E34
(21) 		0.3 -1.1 -4.4e32

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 31-Oct-2016 20:30 UT .