29 June 2015
⇐20150628 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150630⇒

NOAA
3 Active Regions
12371
12373
12374

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E53S24
(-688",-403") 		E60-E42
(18) 		1.3 -2.2 -2.8e33
2 W54N39
(597",574") 		W38-W66
(28) 		0.4 1.1 6.1e32
3 E18N29
(-256",418") 		E20-E15
(5) 		0.1 -1.1 -2.9e31
4 E45S05
(-664",-106") 		E46-E43
(3) 		0.1 10.9 4.7e32

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 29-Jun-2015 23:35 UT .