20 November 2018
⇐20181119 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181121⇒

NOAA
1 Active Region
12727

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 W23S24
(346",-428") 		E20-W50
(70) 		5.4 -0.3 -6.1e20
2 E03N68
(-21",886") 		E76-W75
(151) 		2.8 0.8 3.9e21
3 E19N32
(-268",492") 		E33-E03
(30) 		2.3 0.2 1.2e20
4 W30S11
(480",-213") 		W18-W41
(23) 		1.6 0.2 1.0e20
5 E40S08
(-616",-163") 		E47-E29
(18) 		1.0 -1.1 -4.8e20
6 W43S68
(249",-909") 		W36-W62
(26) 		0.3 -1.2 -2.2e21
7 E04S73
(-17",-939") 		E31-W27
(58) 		0.2 -1.1 -1.3e21
8 E11S47
(-133",-732") 		E15-E08
(7) 		0.0 -1.2 -3.7e19

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 20-Nov-2018 20:30 UT .