2 May 2019
⇐20190501 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190503⇒

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 E20S18
(-314",-235") 		E39-W07
(46) 		3.6 -0.3 -2.7e20
2 E02S68
(-11",-854") 		E61-W76
(137) 		3.2 -1.3 -6.2e21
3 W48S27
(628",-390") 		W26-W68
(42) 		1.5 -0.4 -4.5e20
4 E19N67
(-118",901") 		E50-W08
(58) 		0.5 0.6 9.3e20
5 E25S28
(-360",-400") 		E27-E22
(5) 		0.1 -0.6 -1.5e19
6 W19S25
(277",-349") 		W17-W21
(4) 		0.0 -0.8 -8.8e18

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 2-May-2019 22:00 UT .