7 April 2020
⇐20200406 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200408⇒

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 E10S22
(-156",-265") 		E31-W17
(48) 		8.7 -0.5 -1.1e21
2 W20S66
(129",-836") 		E62-W74
(136) 		4.0 -1.0 -5.5e21
3 W26S06
(417",-4") 		W14-W43
(29) 		2.6 -0.4 -2.5e20
4 E27N56
(-244",845") 		E42-W13
(55) 		1.6 0.6 1.8e21
5 W40N10
(613",243") 		W37-W45
(8) 		0.2 -0.4 -3.5e19
6 W41S15
(608",-178") 		W38-W44
(6) 		0.1 -0.5 -2.1e19

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 7-Apr-2020 19:30 UT .