12 February 2017
⇐20170211 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170213⇒

NOAA
2 Active Regions
12635
12634

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 W10N46
(119",774") 		E49-W40
(89) 		6.0 0.4 1.9e33
2 W35S68
(210",-861") 		E65-W86
(151) 		2.6 -1.3 -6.2e33
3 E36S24
(-529",-307") 		E53-E16
(37) 		1.5 1.2 7.4e32
4 E10S16
(-160",-164") 		E18-E00
(18) 		1.3 1.5 3.7e32

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 12-Feb-2017 20:30 UT .