7 June 2021
⇐20210606 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210608⇒

NOAA
4 Active Regions
12827
12829
12830
12828

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 W32S02
(495",-34") 		W03-W52
(49) 		5.5 -0.6 -5.4e20
2 W14N66
(91",862") 		E45-W56
(101) 		2.4 0.8 7.8e20
3 E20S09
(-327",-144") 		E37-W03
(40) 		1.6 -0.1 -2.5e19
4 W06N03
(102",39") 		E07-W16
(23) 		1.5 0.3 6.8e19
5 W35S59
(279",-815") 		E19-W48
(67) 		1.5 -0.8 -4.6e20
6 E61S41
(-623",-625") 		E62-E54
(8) 		0.1 -0.3 -1.3e19
7 E19N53
(-183",751") 		E22-E14
(8) 		0.1 -0.9 -1.6e19
8 W22N28
(307",447") 		W20-W23
(3) 		0.1 -1.4 -1.4e19
9 E48S03
(-699",-45") 		E50-E45
(5) 		0.1 -0.5 -5.9e18

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 7-Jun-2021 23:30 UT .