18 October 2016
⇐20161017 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161019⇒

NOAA
2 Active Regions
12600
12602

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 W57S13
(784",-271") 		W48-W65
(17) 		0.5 -1.1 -6.7e32
2 E67N58
(-468",795") 		E73-E47
(26) 		0.5 0.4 8.4e32
3 E19S03
(-309",-139") 		E23-E12
(11) 		0.4 1.4 1.2e32
4 W44S64
(292",-891") 		W43-W56
(13) 		0.2 -0.4 -4.7e32
5 W22S71
(117",-936") 		W06-W32
(26) 		0.1 -1.2 -9.6e32
6 W30N19
(459",242") 		W28-W33
(5) 		0.1 -1.7 -4.9e31
7 W47S16
(676",-327") 		W44-W49
(5) 		0.1 -2.3 -9.4e31

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 18-Oct-2016 23:30 UT .