20 September 2020
⇐20200919 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200921⇒

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 E24N57
(-207",742") 		E54-W91
(145) 		8.3 0.7 1.5e21
2 W22N11
(360",72") 		E03-W38
(41) 		3.8 0.0 3.0e19
3 E14N22
(-219",244") 		E28-W02
(30) 		2.7 0.1 3.6e19
4 E33N03
(-519",-51") 		E44-E17
(27) 		1.4 0.4 9.5e19
5 W30S60
(237",-875") 		W06-W37
(31) 		0.6 -0.4 -1.2e20
6 W05N23
(84",269") 		W03-W07
(4) 		0.0 -0.9 -6.0e18

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 20-Sep-2020 19:00 UT .