3 April 2018
⇐20180402 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180404⇒

NOAA
1 Active Region
12703

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 W12N52
(123",817") 		E55-W35
(90) 		5.0 0.8 4.6e33
2 W22S72
(111",-877") 		E85-W72
(157) 		2.5 -0.5 -2.5e33
3 E47N03
(-699",127") 		E71-E30
(41) 		1.7 -0.2 -2.2e32

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 3-Apr-2018 23:30 UT .