17 October 2016
⇐20161016 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161018⇒

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 W43S13
(644",-289") 		W29-W56
(27) 		1.8 -1.1 -1.1e33
2 W28S56
(255",-843") 		E19-W37
(56) 		1.4 -0.5 -1.4e33
3 E32S01
(-507",-92") 		E38-E26
(12) 		0.3 0.8 8.3e31
4 W35S28
(492",-522") 		W30-W43
(13) 		0.2 -0.4 -5.2e31
5 W18N19
(279",225") 		W16-W20
(4) 		0.1 -1.2 -2.3e31
6 W21N14
(344",138") 		W20-W23
(3) 		0.1 -2.5 -3.8e31

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 17-Oct-2016 23:30 UT .