28 January 2018
⇐20180127 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180129⇒

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 W19S65
(136",-843") 		E84-W58
(142) 		4.5 -1.0 -5.5e33
2 W26S25
(388",-336") 		E03-W37
(40) 		3.8 -0.1 -1.8e32
3 E06N58
(-49",875") 		E45-W56
(101) 		2.3 0.5 1.6e33
4 E51N39
(-588",664") 		E62-E41
(21) 		0.5 0.8 6.6e32
5 W06S18
(91",-202") 		W01-W08
(7) 		0.3 -1.0 -6.3e31

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 28-Jan-2018 20:30 UT .