16 February 2019
⇐20190215 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190217⇒

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 W08S16
(126",-163") 		E19-W22
(41) 		6.3 0.4 5.0e20
2 W33S68
(193",-861") 		E86-W82
(168) 		3.0 -1.2 -6.4e21
3 W14N62
(110",903") 		E37-W49
(86) 		1.6 0.9 3.3e21
4 W17S09
(288",-44") 		W10-W29
(19) 		1.0 1.0 2.0e20
5 W37S26
(528",-333") 		W33-W40
(7) 		0.2 -1.2 -8.8e19
6 E28S31
(-396",-406") 		E30-E25
(5) 		0.0 -1.5 -2.0e19

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 16-Feb-2019 20:30 UT .