29 November 2015
⇐20151128 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151130⇒

NOAA
4 Active Regions
12457
12458
12459
12460

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 E06N50
(-61",736") 		E68-W41
(109) 		8.6 0.5 2.7e33
2 W18S15
(291",-274") 		20
(4.4e04) 		1.8 8.5 3.7e33
3 E59N35
(-682",546") 		E76-E40
(36) 		1.5 0.7 1.6e33
4 W06S23
(88",-403") 		W04-W07
(3) 		0.0 -1.9 -2.4e31

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 29-Nov-2015 21:35 UT .