24 January 2020
⇐20200123 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200125⇒

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 W04N09
(61",236") 		E25-W38
(63) 		6.3 -0.1 -1.4e20
2 E22S59
(-187",-790") 		125
(5.7e05) 		-0.5 5.4 3.1e22
3 W15S23
(237",-295") 		W01-W25
(24) 		2.0 0.0 1.0e19
4 W20N65
(144",915") 		E32-W53
(85) 		1.1 0.7 2.3e21
5 E21N27
(-316",516") 		E30-E15
(15) 		0.5 -0.6 -1.3e20
6 E44S28
(-597",-392") 		E46-E39
(7) 		0.1 -0.4 -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 24-Jan-2020 20:30 UT .