26 January 2019
⇐20190125 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190127⇒

NOAA
1 Active Region
12733

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 E33S23
(-491",-304") 		E63-W11
(74) 		11.2 -0.4 -1.8e21
2 E01S68
(-8",-868") 		E80-W73
(153) 		3.0 -1.2 -5.1e21
3 E05N60
(-41",888") 		E50-W46
(96) 		1.9 0.9 3.0e21
4 W03N44
(41",749") 		E05-W08
(13) 		0.2 0.5 6.8e19
5 E31N07
(-505",197") 		E34-E29
(5) 		0.1 -1.4 -2.8e19
6 E70N07
(-907",155") 		E73-E66
(7) 		0.1 -0.3 -5.0e19

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 26-Jan-2019 20:30 UT .