4 July 2015
⇐20150703 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150705⇒

NOAA
7 Active Regions
12373
12375
12376
12377
12378
12379
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 W23S26
(335",-459") 		E04-W44
(48) 		3.4 -4.5 -5.8e33
2 E14S67
(-89",-888") 		E55-W39
(94) 		1.0 -1.0 -3.0e33
3 W23S01
(375",-64") 		W17-W27
(10) 		0.4 -3.7 -4.0e32
4 E53S01
(-750",-40") 		E57-E48
(9) 		0.3 4.6 1.0e33

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 4-Jul-2015 23:35 UT .