10 January 2017
⇐20170109 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170111⇒

NOAA
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Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
8 E41N28
(-562",499") 		E79-E22
(57) 		1.7 1.0 1.1e33
5 W22N02
(364",103") 		W12-W33
(21) 		1.4 1.4 5.1e32
10 E42N62
(-300",886") 		E68-E35
(33) 		0.4 0.4 6.0e32
1 W70S42
(678",-638") 		W60-W82
(22) 		0.2 -1.2 -7.7e32
7 W64S67
(339",-886") 		W60-W69
(9) 		0.1 -1.4 -1.1e33
11 W25S80
(70",-949") 		E03-W50
(53) 		0.1 -1.1 -8.4e32
12 E45S77
(-155",-937") 		E72-E30
(42) 		0.1 -1.6 -9.0e32

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 10-Jan-2017 20:30 UT .