16 March 2018
⇐20180315 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180317⇒

NOAA
1 Active Region
12701

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 E25S26
(-375",-316") 		E61-W19
(80) 		15.4 -0.1 -3.4e32
2 W41N13
(624",304") 		W17-W76
(59) 		4.4 -0.8 -1.9e33
3 E61S64
(-374",-834") 		E85-E50
(35) 		0.7 -0.7 -1.5e33
4 W25N28
(364",541") 		W15-W34
(19) 		0.5 -0.9 -2.3e32
5 E46N17
(-666",357") 		E50-E42
(8) 		0.1 -1.5 -8.4e31

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 16-Mar-2018 20:32 UT .