30 November 2017
⇐20171129 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171201⇒

NOAA
1 Active Region
12689

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 E27N46
(-304",687") 		E52-W45
(97) 		8.2 1.2 6.5e33
2 W29S64
(205",-883") 		E52-W51
(103) 		1.8 -1.1 -4.6e33
3 W48S39
(561",-619") 		W33-W59
(26) 		0.6 -1.2 -7.7e32
4 W09S14
(152",-252") 		W08-W11
(3) 		0.0 -2.5 -2.4e31
5 W04S23
(63",-401") 		W02-W05
(3) 		0.0 -1.5 -1.3e31
6 W19S09
(320",-161") 		W18-W21
(3) 		0.0 -1.0 -8.0e30

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 30-Nov-2017 20:30 UT .