7 October 2018
⇐20181006 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181008⇒

NOAA
1 Active Region
12723

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 W38N24
(541",309") 		W11-W53
(42) 		6.5 1.2 3.4e21
2 E10N68
(-62",844") 		E87-W33
(120) 		3.5 1.1 5.1e21
3 E50S14
(-713",-303") 		E65-E39
(26) 		1.7 -1.0 -1.3e21
4 E37N08
(-576",54") 		E49-E29
(20) 		0.7 -0.7 -1.9e20
5 E43S30
(-568",-543") 		E51-E35
(16) 		0.6 -0.6 -2.7e20
6 W15N23
(230",271") 		W13-W17
(4) 		0.1 -0.9 -1.7e19
7 E25S11
(-397",-278") 		E27-E23
(4) 		0.1 -0.7 -1.2e19
8 W10S19
(156",-409") 		W07-W12
(5) 		0.0 -0.9 -1.2e19

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 7-Oct-2018 23:10 UT .