24 September 2018
⇐20180923 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180925⇒

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 W19S20
(294",-423") 		E07-W41
(48) 		5.1 -0.4 -7.2e20
2 E07N68
(-43",839") 		E71-W66
(137) 		4.8 1.2 6.9e21
3 E23S67
(-147",-914") 		E47-W17
(64) 		0.5 -0.8 -1.9e21
4 E25N20
(-381",229") 		E32-E19
(13) 		0.4 0.8 9.4e19
5 W28S65
(192",-904") 		W16-W49
(33) 		0.1 -0.9 -4.0e20
6 W46S14
(669",-312") 		W44-W49
(5) 		0.1 -0.9 -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 24-Sep-2018 23:10 UT .