21 October 2014
⇐20141020 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141022⇒

NOAA
6 Active Regions
12187
12191
12192
12193
12189
12190

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W32N54
(301",736") 		E23-W50
(73) 		5.2 0.4 1.6e33
2 W04S10
(63",-262") 		E15-W18
(33) 		2.1 13.1 5.8e33
3 W51N11
(733",129") 		W45-W56
(11) 		0.7 2.4 1.1e33
4 W20S03
(328",-143") 		W14-W26
(12) 		0.4 7.2 6.2e32
5 E05S01
(-90",-105") 		E06-E03
(3) 		0.0 11.4 7.1e31

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 21-Oct-2014 23:35 UT .