12 January 2020
⇐20200111 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200113⇒

NOAA
2 Active Regions
12755
12756

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 W23N43
(280",711") 		E36-W34
(70) 		5.8 0.6 2.5e21
2 W25S66
(171",-862") 		E66-W53
(119) 		3.7 -0.9 -5.0e21
3 W26S10
(422",-100") 		W05-W40
(35) 		2.3 0.5 3.4e20
4 E28N17
(-439",345") 		E36-E18
(18) 		1.6 0.1 5.8e19
5 W16S42
(199",-602") 		W13-W20
(7) 		0.1 -1.4 -4.8e19
6 E63S19
(-824",-280") 		E67-E59
(8) 		0.1 -1.3 -1.3e20

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 12-Jan-2020 20:30 UT .