8 February 2017
⇐20170207 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170209⇒

NOAA
2 Active Regions
12634
12630

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 W22S70
(130",-871") 		E69-W86
(155) 		3.5 -1.3 -7.5e33
2 E23N40
(-286",706") 		E55-W01
(56) 		3.4 0.8 1.8e33
3 W41N03
(633",126") 		W30-W53
(23) 		1.1 0.9 4.8e32
4 E49N33
(-621",583") 		E62-E41
(21) 		0.6 0.5 3.5e32
5 E23S03
(-381",43") 		E24-E22
(2) 		0.0 -0.9 -7.9e30

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 8-Feb-2017 20:30 UT .