15 February 2018
⇐20180214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180216⇒

NOAA
1 Active Region
12699

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 W23N15
(364",350") 		E07-W47
(54) 		6.1 -1.4 -2.6e33
2 E42S34
(-543",-473") 		E67-E22
(45) 		0.9 -1.1 -5.5e32
3 E53S74
(-209",-911") 		E76-E43
(33) 		0.2 -1.2 -1.0e33
4 E45N14
(-670",307") 		E49-E41
(8) 		0.0 2.0 5.1e31

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 15-Feb-2018 20:30 UT .