6 September 2019
⇐20190905 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190907⇒

NOAA
1 Active Region
12748

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 E16S07
(-265",-229") 		E31-W08
(39) 		5.9 0.0 3.2e19
2 W28S22
(417",-451") 		W01-W49
(48) 		5.4 -0.3 -3.3e20
3 E04N70
(-24",850") 		E79-W75
(154) 		3.8 1.5 1.9e21
4 W46S16
(657",-348") 		W42-W52
(10) 		0.2 -0.5 -2.4e19
5 W24N09
(385",40") 		W21-W27
(6) 		0.2 -0.9 -2.7e19
6 E15S68
(-95",-918") 		E31-W02
(33) 		0.2 -1.1 -1.1e20
7 W29S03
(469",-161") 		W27-W33
(6) 		0.1 -1.6 -1.9e19
8 W19S71
(102",-930") 		W06-W33
(27) 		0.0 -1.6 -6.5e19

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-Sep-2019 23:40 UT .