19 November 2019
⇐20191118 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191120⇒

NOAA
1 Active Region
12752

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 W24N21
(370",318") 		E01-W40
(41) 		5.0 0.9 7.7e20
2 E02N65
(-12",862") 		E64-W63
(127) 		3.5 1.3 1.5e21
3 E18N06
(-307",59") 		E32-W05
(37) 		3.0 -0.3 -1.4e20
4 W37S08
(584",-166") 		W28-W49
(21) 		0.7 0.9 1.2e20
5 W14S71
(79",-928") 		E31-W47
(78) 		0.4 -1.1 -2.6e20
6 E53S30
(-672",-504") 		E63-E47
(16) 		0.2 -0.5 -2.8e19
7 E09N48
(-106",691") 		E15-E04
(11) 		0.2 -0.4 -1.4e19
8 E39S12
(-594",-239") 		E42-E35
(7) 		0.1 -0.5 -8.9e18

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 19-Nov-2019 23:40 UT .