6 January 2019
⇐20190105 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190107⇒

NOAA
1 Active Region
12732

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 E16S63
(-118",-843") 		81
(4.4e05) 		-0.8 5.5 2.4e22
2 W48S28
(639",-418") 		W36-W66
(30) 		1.4 -0.7 -6.7e20
3 E43N63
(-305",888") 		E70-E19
(51) 		0.6 0.7 1.7e21
4 W28N16
(444",316") 		W26-W31
(5) 		0.1 -1.1 -3.4e19
5 W33S43
(384",-628") 		W29-W35
(6) 		0.1 -0.6 -2.4e19
6 W63S20
(819",-313") 		W61-W66
(5) 		0.1 -0.6 -4.6e19
7 W10N03
(166",108") 		W08-W11
(3) 		0.0 -1.2 -9.1e18

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 6-Jan-2019 20:30 UT .