26 December 2019
⇐20191225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191227⇒

NOAA
2 Active Regions
12753
12754

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 E00S10
(-7",-138") 		E39-W30
(69) 		10.1 -0.0 -2.1e18
2 E23S63
(-174",-853") 		E68-W52
(120) 		3.8 -0.6 -3.4e21
3 W29N66
(194",906") 		70
(2.9e05) 		1.1 5.8 1.7e22
4 W35S04
(555",-39") 		W31-W38
(7) 		0.1 -0.9 -4.2e19
5 W40S20
(597",-304") 		W38-W43
(5) 		0.1 -0.9 -5.5e19
6 E30N19
(-455",358") 		E30-E27
(3) 		0.0 -0.9 -1.3e19

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 26-Dec-2019 20:30 UT .