27 November 2012
⇐20121126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20121128⇒

NOAA
5 Active Regions
11618
11620
11621
11622
11623

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E31N46
(-341",692") 		E59-W15
(74) 		4.8 0.0 5.2e31
2 E04N18
(-70",282") 		E14-W11
(25) 		3.6 -1.6 -1.3e33
3 W39N50
(391",734") 		W23-W56
(33) 		1.4 0.4 5.3e32
4 E09N16
(-151",241") 		E12-E06
(6) 		0.2 -3.7 -1.3e32
5 W13N26
(190",412") 		W11-W15
(4) 		0.1 -1.1 -2.1e31
6 E16N24
(-249",379") 		E19-E14
(5) 		0.1 -4.2 -6.5e31

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 .