14 May 2021
⇐20210513 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210515⇒

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 E25S03
(-400",-9") 		E41-W10
(51) 		9.8 -0.4 -6.2e20
2 E19S55
(-183",-751") 		E47-W54
(101) 		7.3 -0.8 -1.5e21
3 E27N29
(-380",496") 		E29-E25
(4) 		0.1 -1.4 -3.4e19

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 14-May-2021 23:30 UT .