28 August 2019
⇐20190827 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190829⇒

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 E07N13
(-118",93") 		E34-W20
(54) 		9.9 1.4 2.1e21
2 E37N67
(-223",832") 		E60-W18
(78) 		2.9 1.1 1.2e21
3 W57S08
(788",-202") 		W52-W63
(11) 		0.3 -1.5 -1.3e20
4 W14S14
(230",-334") 		W11-W17
(6) 		0.1 -0.8 -1.1e19
5 E21S01
(-338",-127") 		E23-E19
(4) 		0.0 3.2 2.5e19
6 W05S71
(25",-928") 		E02-W09
(11) 		0.0 -1.6 -5.0e19

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 28-Aug-2019 23:40 UT .