18 March 2014
⇐20140317 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140319⇒

NOAA
7 Active Regions
12002
12004
12005
12007
12008
12009
12010

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W63S53
(513",-736") 		W49-W77
(28) 		0.8 -0.5 -8.3e32
2 E32N46
(-356",756") 		E51-E13
(38) 		0.6 0.8 5.3e32
3 E31S03
(-493",52") 		E35-E25
(10) 		0.5 8.9 1.4e33
4 W45N37
(546",649") 		W35-W59
(24) 		0.5 0.9 5.4e32
5 W43S66
(274",-835") 		W29-W47
(18) 		0.3 -0.3 -1.6e32

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 18-Mar-2014 20:35 UT .