27 November 2015
⇐20151126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151128⇒

NOAA
4 Active Regions
12457
12458
12459
12460

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 E34N49
(-351",726") 		E51-W30
(81) 		7.3 0.4 2.4e33
2 E18S21
(-286",-378") 		E32-E04
(28) 		2.8 1.5 1.3e33
3 W43S63
(303",-874") 		E36-W51
(87) 		1.8 -0.9 -5.3e33

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 27-Nov-2015 21:35 UT .