5 January 2018
⇐20180104 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180106⇒

NOAA
1 Active Region
12693

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 E01N49
(-8",775") 		E59-W49
(108) 		8.5 0.9 5.4e33
2 W20S21
(313",-294") 		W08-W29
(21) 		2.0 -0.0 -1.1e30
3 E09S72
(-46",-907") 		E60-W79
(139) 		1.8 -1.3 -5.2e33
4 E14S10
(-241",-104") 		E21-E09
(12) 		0.4 -1.4 -1.2e32

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 5-Jan-2018 20:30 UT .