27 January 2019
⇐20190126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190128⇒

NOAA
1 Active Region
12733

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 E26S21
(-394",-261") 		E53-W19
(72) 		16.0 -0.5 -2.5e21
2 E11S63
(-85",-826") 		E82-W28
(110) 		3.2 -1.0 -3.4e21
3 W15N61
(118",895") 		E30-W51
(81) 		1.6 0.9 2.9e21
4 E59N10
(-823",212") 		E68-E50
(18) 		0.5 -0.4 -2.5e20
5 W50S68
(273",-879") 		W29-W78
(49) 		0.4 -0.8 -9.1e20
6 E42N17
(-619",357") 		E43-E39
(4) 		0.0 -1.0 -2.2e19

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 27-Jan-2019 20:30 UT .