27 February 2019
⇐20190226 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190228⇒

NOAA
0 Active Regions

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 E01S19
(-21",-204") 		E51-W56
(107) 		17.0 -0.4 -1.3e21
2 W07S65
(49",-821") 		E88-W54
(142) 		5.2 -1.3 -6.6e21
3 W26N66
(171",925") 		E14-W54
(68) 		0.6 0.7 2.1e21
4 W12S40
(159",-526") 		W10-W15
(5) 		0.1 -0.6 -1.6e19
5 W26N17
(409",379") 		W24-W28
(4) 		0.0 -1.4 -2.6e19

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 27-Feb-2019 20:30 UT .