7 August 2019
⇐20190806 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190808⇒

NOAA
2 Active Regions
12747
12746

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 W06N67
(41",828") 		E88-W80
(168) 		4.5 1.2 1.7e21
2 W23S31
(314",-569") 		E12-W37
(49) 		4.3 -0.7 -5.9e20
3 E11S13
(-169",-303") 		E34-W17
(51) 		3.1 -0.4 -2.1e20
4 E18N09
(-296",52") 		E30-E02
(28) 		2.0 -0.0 -9.6e18
5 E10S20
(-161",-423") 		E16-E05
(11) 		0.4 -0.7 -4.3e19
6 W25S65
(167",-892") 		W05-W32
(27) 		0.3 -0.7 -1.2e20
7 W26N15
(398",158") 		W22-W29
(7) 		0.2 -0.9 -2.5e19
8 E41S12
(-605",-275") 		E45-E36
(9) 		0.2 -0.5 -1.7e19
9 E15S69
(-88",-912") 		E24-E04
(20) 		0.1 -0.9 -6.4e19
10 E25N18
(-380",197") 		E27-E22
(5) 		0.1 -1.1 -9.8e18
11 E51S13
(-718",-279") 		E54-E48
(6) 		0.0 -1.7 -2.0e19
12 W25N29
(351",382") 		W22-W28
(6) 		0.0 -0.6 -5.0e18

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 7-Aug-2019 23:30 UT .