22 March 2019
⇐20190321 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190323⇒

NOAA
2 Active Regions
12735
12736

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 E13S47
(-150",-617") 		E43-W67
(110) 		13.2 -0.6 -3.6e21
2 E18N60
(-154",882") 		E57-W25
(82) 		1.4 0.7 2.2e21
3 E41S27
(-569",-358") 		E50-E32
(18) 		0.3 -0.5 -7.9e19
4 E35S12
(-546",-100") 		E39-E31
(8) 		0.3 -1.2 -1.2e20
5 E46S10
(-685",-78") 		E52-E41
(11) 		0.2 -0.7 -8.8e19
6 E54S31
(-666",-432") 		E56-E51
(5) 		0.0 -1.2 -4.0e19

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 22-Mar-2019 20:30 UT .