17 January 2015
⇐20150116 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150118⇒

NOAA
6 Active Regions
12259
12260
12261
12263
12264
12258

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E34S63
(-244",-838") 		E84-W08
(92) 		2.6 -0.6 -2.2e33
2 E47N42
(-528",694") 		E62-E23
(39) 		2.2 0.5 1.8e33
3 W30N08
(490",208") 		W22-W39
(17) 		1.4 -4.6 -2.2e33
4 W16S25
(246",-336") 		W08-W24
(16) 		0.8 -11.3 -2.5e33

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 17-Jan-2015 22:35 UT .