25 January 2019
⇐20190124 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190126⇒

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 E34S18
(-523",-227") 		E55-E11
(44) 		3.2 -0.6 -7.2e20
2 E08S72
(-42",-896") 		E84-W84
(168) 		2.3 -1.1 -5.1e21
3 E09N57
(-82",867") 		E33-W44
(77) 		2.3 0.7 2.2e21
4 E64S17
(-840",-249") 		E73-E58
(15) 		0.4 -0.4 -1.9e20
5 E52N01
(-765",70") 		E58-E45
(13) 		0.3 -0.4 -1.0e20
6 E33S33
(-442",-457") 		E37-E28
(9) 		0.3 -0.9 -1.1e20
7 E21S54
(-207",-739") 		E27-E12
(15) 		0.2 -0.9 -1.2e20
8 E28S04
(-456",8") 		E30-E26
(4) 		0.0 -0.8 -9.7e18

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 25-Jan-2019 20:30 UT .