26 January 2018
⇐20180125 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180127⇒

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 W06S19
(94",-234") 		E15-W24
(39) 		5.7 -0.4 -4.8e32
2 W00S63
(3",-821") 		E72-W43
(115) 		5.6 -1.1 -6.1e33
3 E00N53
(-4",830") 		E63-W28
(91) 		3.5 0.7 2.5e33
4 W33N18
(512",380") 		W25-W42
(17) 		0.7 1.2 3.6e32
5 W19S18
(295",-222") 		W14-W22
(8) 		0.1 -0.9 -2.7e31

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-2018 20:30 UT .