13 December 2018
⇐20181212 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181214⇒

NOAA
1 Active Region
12730

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 E04S45
(-43",-687") 		E50-W32
(82) 		11.2 -0.6 -3.2e21
2 W03N60
(30",848") 		E71-W34
(105) 		3.6 0.7 3.2e21
3 E24N32
(-335",520") 		E28-E21
(7) 		0.1 -1.3 -5.1e19
4 W16S07
(263",-103") 		W13-W18
(5) 		0.0 -1.0 -1.0e19
5 W01S28
(20",-447") 		E01-W02
(3) 		0.0 -0.9 -9.6e18
6 E16S34
(-228",-539") 		E18-E15
(3) 		0.0 -0.8 -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 13-Dec-2018 20:30 UT .