28 May 2020
⇐20200527 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200529⇒

NOAA
0 Active Regions

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 W02S10
(25",-145") 		E26-W28
(54) 		4.5 0.0 4.7e18
2 W07S65
(45",-855") 		E69-W78
(147) 		3.1 -0.9 -4.5e21
3 E26N59
(-213",818") 		E51-E04
(47) 		1.7 0.8 2.0e21
4 E23S32
(-313",-490") 		E30-E18
(12) 		0.4 -0.7 -1.2e20
5 W05N38
(58",598") 		6
(2.7e03) 		-0.6 4.3 1.1e20
6 E58S54
(-468",-762") 		E67-E50
(17) 		0.0 -1.1 -1.3e20

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 28-May-2020 19:30 UT .