22 January 2020
⇐20200121 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200123⇒

NOAA
0 Active Regions

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 E12S71
(-67",-893") 		E81-W65
(146) 		2.5 -0.7 -3.5e21
2 W09N63
(70",907") 		E37-W47
(84) 		1.5 0.8 2.9e21
3 W32S33
(436",-467") 		W29-W40
(11) 		0.3 -0.7 -9.7e19
4 W45N13
(674",273") 		W41-W51
(10) 		0.2 -0.6 -7.7e19
5 E24N08
(-397",221") 		E27-E21
(6) 		0.2 -0.8 -4.0e19
6 W48S24
(662",-340") 		W46-W50
(4) 		0.0 -0.7 -1.8e19

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 22-Jan-2020 20:30 UT .