15 June 2021
⇐20210614 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210616⇒

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 W31S41
(366",-631") 		E14-W50
(64) 		14.3 -0.7 -2.3e21
2 E30S01
(-477",-39") 		E41-E11
(30) 		1.8 0.1 3.2e19
3 E59N46
(-564",671") 		E62-E59
(3) 		0.5 0.7 1.3e20
4 E45N75
(-168",910") 		E56-E24
(32) 		0.1 0.7 7.4e19
5 E25N09
(-401",129") 		E27-E24
(3) 		0.1 -0.7 -6.4e18
6 W54S05
(766",-96") 		W51-W58
(7) 		0.0 -0.9 -9.1e18
7 W47N13
(674",204") 		W45-W50
(5) 		0.0 -2.6 -2.3e19

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 15-Jun-2021 19:30 UT .