13 February 2019
⇐20190212 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190214⇒

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 W14S59
(117",-771") 		E44-W76
(120) 		8.9 -0.9 -6.3e21
2 W18S07
(300",-3") 		W02-W34
(32) 		1.6 -0.4 -1.5e20
3 E34N62
(-251",900") 		E60-W12
(72) 		0.9 0.9 3.1e21
4 E47N03
(-708",133") 		E56-E38
(18) 		0.7 0.8 3.3e20
5 E15S43
(-187",-582") 		E17-E13
(4) 		0.1 -1.3 -2.9e19
6 E28S35
(-373",-466") 		E30-E25
(5) 		0.1 -1.6 -3.3e19

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 13-Feb-2019 20:30 UT .