23 November 2019
⇐20191122 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191124⇒

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 E07S27
(-100",-466") 		E30-W27
(57) 		7.6 -0.5 -6.4e20
2 W24N04
(394",47") 		E05-W44
(49) 		3.3 -0.3 -1.8e20
3 W44N67
(268",883") 		E13-W61
(74) 		1.7 1.0 8.2e20
4 E41S65
(-267",-891") 		E68-E21
(47) 		0.4 -1.1 -2.5e20
5 E56N64
(-356",863") 		E64-E50
(14) 		0.4 0.9 2.0e20
6 W34N09
(544",120") 		W33-W37
(4) 		0.1 -1.3 -2.2e19
7 W32S07
(507",-149") 		W30-W33
(3) 		0.1 -1.7 -1.6e19
8 W30S10
(477",-192") 		W28-W32
(4) 		0.0 -1.6 -1.4e19

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 23-Nov-2019 23:40 UT .