21 October 2016
⇐20161020 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161022⇒

NOAA
2 Active Regions
12602
12603

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 E43N28
(-578",400") 		71
(2.7e05) 		1.8 8.4 2.3e34
2 E45N59
(-349",793") 		E66-W76
(142) 		3.7 1.0 5.8e33
3 E53S00
(-775",-57") 		E74-E40
(34) 		0.7 1.0 5.6e32
4 W26S03
(429",-133") 		W21-W32
(11) 		0.4 0.9 9.9e31
5 W20N14
(322",143") 		W15-W25
(10) 		0.3 2.6 2.1e32

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-2016 11:30 UT .