14 January 2017
⇐20170113 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170115⇒

NOAA
2 Active Regions
12625
12626

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
8 E06N45
(-75",747") 		E65-W33
(98) 		7.4 0.9 4.2e33
14 E39S18
(-582",-253") 		E70-E17
(53) 		4.2 1.3 2.3e33
16 E25N15
(-396",318") 		E32-E15
(17) 		1.5 0.1 5.2e31
11 W17S73
(81",-912") 		E26-W63
(89) 		0.7 -1.1 -1.9e33
17 W35N16
(545",331") 		W32-W39
(7) 		0.2 2.2 2.0e32

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 14-Jan-2017 20:30 UT .