20 January 2020
⇐20200119 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200121⇒

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]
1 E14S23
(-225",-297") 		E26-W09
(35) 		3.0 -0.2 -1.7e20
2 W20S70
(113",-887") 		E81-W60
(141) 		2.4 -0.9 -4.1e21
3 E02N67
(-13",927") 		E59-W55
(114) 		1.0 1.0 3.1e21
4 W48S21
(678",-303") 		W41-W57
(16) 		0.3 -1.2 -2.4e20
5 W46S27
(619",-393") 		W42-W52
(10) 		0.2 -0.8 -8.5e19
6 E07N08
(-111",215") 		E09-E03
(6) 		0.1 -0.9 -2.5e19
7 W45S13
(676",-158") 		W43-W46
(3) 		0.0 -1.1 -2.1e19

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 20-Jan-2020 20:30 UT .