16 June 2021
⇐20210615 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210617⇒

NOAA
2 Active Regions
12833
12832

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 W43S50
(418",-732") 		E46-W57
(103) 		5.6 -0.8 -1.5e21
2 E07N02
(-112",4") 		E32-W22
(54) 		4.1 -0.0 -1.2e19
3 E49N50
(-453",720") 		E53-E48
(5) 		1.2 0.5 2.2e20
4 E35N75
(-142",907") 		E74-W41
(115) 		0.5 0.5 1.8e20
5 W50S04
(720",-77") 		W46-W53
(7) 		0.1 -2.5 -5.6e19
6 W44N12
(642",186") 		W42-W47
(5) 		0.1 -2.4 -3.1e19

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 16-Jun-2021 19:30 UT .