10 April 2020
⇐20200409 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200411⇒

NOAA
1 Active Region
12759

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 E17S16
(-267",-169") 		E33-W04
(37) 		4.0 0.0 3.6e19
2 W11S69
(64",-855") 		E81-W79
(160) 		3.5 -1.0 -4.9e21
3 W27S12
(426",-111") 		W06-W45
(39) 		3.0 -0.4 -3.0e20
4 W16N61
(129",882") 		E35-W56
(91) 		1.3 0.8 2.3e21
5 W15N41
(189",700") 		W08-W22
(14) 		0.4 0.8 2.0e20
6 W24N32
(334",577") 		W17-W32
(15) 		0.3 0.5 7.2e19
7 W45S13
(663",-153") 		W39-W51
(12) 		0.3 -0.6 -9.9e19
8 W39S24
(558",-316") 		W35-W42
(7) 		0.2 -0.9 -6.4e19
9 E30N06
(-483",182") 		E32-E28
(4) 		0.0 -0.7 -1.0e19

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 10-Apr-2020 19:30 UT .