5 June 2021
⇐20210604 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210606⇒

NOAA
3 Active Regions
12827
12829
12828

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 W12S43
(145",-648") 		E57-W36
(93) 		8.8 -0.8 -1.5e21
2 E10N10
(-163",171") 		E20-W12
(32) 		2.9 -0.1 -6.1e19
3 E01N65
(-10",860") 		E68-W71
(139) 		2.5 0.7 6.4e20
4 E34N39
(-417",596") 		E37-E25
(12) 		0.7 0.4 6.2e19
5 E39N23
(-552",378") 		E44-E36
(8) 		0.2 0.7 3.5e19
6 W54S10
(751",-171") 		W51-W57
(6) 		0.1 -1.0 -1.4e19

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 5-Jun-2021 23:30 UT .