7 January 2022
⇐20220106 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220108⇒

NOAA
3 Active Regions
12924
12925
12922

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 W23S07
(387",-54") 		E05-W45
(50) 		5.5 -0.4 -3.7e20
2 E27N59
(-230",865") 		E44-W17
(61) 		2.6 0.5 4.7e20
3 E20N02
(-340",91") 		E31-E04
(27) 		1.9 0.2 5.3e19
4 W39S32
(522",-468") 		W23-W58
(35) 		1.8 -1.1 -4.5e20
5 W31S59
(256",-809") 		E19-W36
(55) 		1.8 -0.6 -3.4e20
6 E08S18
(-128",-244") 		E10-E05
(5) 		0.3 -1.5 -7.5e19
7 W13N30
(193",549") 		W11-W15
(4) 		0.1 4.6 1.2e20
8 W03S12
(58",-133") 		W02-W05
(3) 		0.0 -1.0 -5.5e18

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 7-Jan-2022 20:30 UT .