5 April 2020
⇐20200404 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200406⇒

NOAA
1 Active Region
12759

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 E25S01
(-412",77") 		E50-W12
(62) 		7.3 -0.2 -4.0e20
2 W03S65
(19",-823") 		E79-W68
(147) 		5.4 -0.8 -5.0e21
3 E31S31
(-417",-420") 		E40-E18
(22) 		1.3 -0.9 -4.3e20
4 W30N65
(201",903") 		E01-W42
(43) 		0.7 0.6 1.8e21
5 E48N42
(-527",690") 		E55-E39
(16) 		0.2 0.2 9.5e19
6 W09S36
(116",-474") 		W06-W12
(6) 		0.1 -1.1 -4.8e19
7 W22N15
(343",334") 		W19-W25
(6) 		0.1 -0.8 -3.0e19
8 W33S01
(525",78") 		W30-W37
(7) 		0.1 -0.6 -2.5e19

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 5-Apr-2020 19:30 UT .