12 June 2021
⇐20210611 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210613⇒

NOAA
2 Active Regions
12832
12829

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 -406
(-628",E00S41") 		77
(3.9e05) 		-0.7 3.9 1.5e22
2 W43N70
(221",883") 		W12-W70
(58) 		0.6 0.6 2.0e20
3 W25S33
(336",-519") 		W18-W32
(14) 		0.5 -0.9 -9.8e19
4 E34N13
(-513",201") 		E42-E27
(15) 		0.2 -0.6 -2.8e19
5 W14S18
(213",-310") 		W11-W16
(5) 		0.0 -1.6 -1.1e19

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 12-Jun-2021 23:30 UT .