11 January 2021
⇐20210110 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210112⇒

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 W15N14
(238",309") 		65
(1.6e05) 		-0.1 4.4 7.1e21
2 E48S62
(-337",-838") 		E59-W63
(122) 		3.3 -1.0 -1.3e21
3 W18N31
(263",566") 		W13-W23
(10) 		0.3 0.5 2.8e19
4 W16S29
(229",-417") 		W12-W20
(8) 		0.1 -1.9 -4.6e19
5 W09N27
(141",504") 		W07-W11
(4) 		0.1 -1.1 -1.2e19

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 11-Jan-2021 20:30 UT .