18 July 2020
⇐20200717 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200719⇒

NOAA
0 Active Regions

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 E25S13
(-396",-280") 		E48-W11
(59) 		6.7 -0.2 -2.9e20
2 W04N70
(21",859") 		E82-W86
(168) 		2.7 1.1 1.1e21
3 W14S64
(99",-881") 		E44-W44
(88) 		1.2 -0.8 -4.3e20
4 W29S38
(360",-632") 		W22-W36
(14) 		0.6 -0.4 -5.8e19
5 W56S02
(781",-81") 		W53-W60
(7) 		0.0 2.3 3.0e19
6 W44S06
(654",-148") 		W42-W45
(3) 		0.0 -2.6 -2.1e19

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 18-Jul-2020 19:00 UT .