1 December 2017
⇐20171130 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171202⇒

NOAA
1 Active Region
12689

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 E12N44
(-148",673") 		E46-W18
(64) 		10.6 1.0 5.8e33
2 W42S65
(279",-885") 		E01-W47
(48) 		1.0 -1.3 -4.5e33
3 W30S28
(424",-469") 		W24-W40
(16) 		0.3 -0.5 -5.2e31
4 W11S19
(184",-322") 		W10-W13
(3) 		0.0 -1.0 -1.1e31
5 W18N15
(294",247") 		W16-W20
(4) 		0.0 1.9 2.2e31

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 1-Dec-2017 20:30 UT .