11 May 2021
⇐20210510 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210512⇒

NOAA
2 Active Regions
12822
12823

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 W20N02
(325",78") 		46
(9.5e04) 		-0.2 4.4 4.1e21
2 E28S58
(-237",-781") 		E69-W57
(126) 		4.7 -0.7 -9.7e20
3 W35S09
(541",-100") 		W31-W39
(8) 		0.2 -0.6 -1.7e19
4 E43S07
(-648",-76") 		E48-E40
(8) 		0.1 0.5 1.4e19
5 E11N44
(-129",697") 		E16-E04
(12) 		0.1 0.5 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 11-May-2021 19:30 UT .