3 January 2019
⇐20190102 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190104⇒

NOAA
1 Active Region
12732

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 W17S23
(264",-333") 		E17-W33
(50) 		6.1 -0.7 -1.1e21
2 W41S20
(606",-297") 		W18-W58
(40) 		2.1 -0.8 -8.2e20
3 E11N09
(-187",207") 		E18-W01
(19) 		1.8 -0.8 -3.0e20
4 E38S71
(-192",-910") 		E79-W22
(101) 		1.1 -0.8 -3.0e21
5 E56S54
(-473",-775") 		E70-E47
(23) 		0.4 -0.6 -4.4e20
6 W02S19
(25",-263") 		E00-W03
(3) 		0.0 -3.6 -3.2e19

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 3-Jan-2019 20:30 UT .