21 November 2019
⇐20191120 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191122⇒

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 E02S13
(-36",-248") 		E18-W23
(41) 		3.9 -0.3 -1.9e20
2 W22N66
(151",872") 		E74-W60
(134) 		2.9 1.1 1.2e21
3 E37S16
(-561",-295") 		E55-E17
(38) 		2.1 -0.5 -2.1e20
4 E19N07
(-321",81") 		E32-E02
(30) 		1.6 0.4 9.2e19
5 W41N25
(573",394") 		W31-W48
(17) 		0.9 0.5 9.9e19
6 E43S33
(-555",-549") 		E50-E30
(20) 		0.5 -0.4 -4.3e19
7 W54N18
(751",283") 		W44-W67
(23) 		0.3 1.0 7.9e19
8 W19S04
(315",-105") 		W15-W24
(9) 		0.2 -1.0 -3.2e19
9 W57N26
(735",413") 		W49-W63
(14) 		0.1 2.0 7.6e19
10 E20S08
(-333",-164") 		E23-E16
(7) 		0.1 -0.8 -1.4e19
11 E24S41
(-301",-664") 		E26-E22
(4) 		0.0 -1.4 -1.1e19

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 21-Nov-2019 20:30 UT .