8 January 2022
⇐20220107 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220109⇒

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 W35S20
(523",-274") 		W03-W65
(62) 		7.0 -0.9 -1.1e21
2 E13S04
(-225",4") 		E26-W12
(38) 		4.3 0.3 1.8e20
3 E15N58
(-135",860") 		E56-W45
(101) 		3.2 0.6 6.1e20
4 W42S55
(370",-774") 		W28-W49
(21) 		1.0 -0.8 -2.6e20
5 E58S64
(-369",-857") 		E78-E43
(35) 		0.5 -0.6 -1.5e20
6 W44S02
(674",19") 		W40-W48
(8) 		0.3 0.6 3.3e19
7 W33S38
(418",-561") 		W29-W38
(9) 		0.1 -0.9 -1.8e19
8 E01S19
(-17",-255") 		E02-W01
(3) 		0.1 -1.6 -1.8e19
9 W29N19
(447",379") 		W27-W31
(4) 		0.1 1.5 2.0e19
10 W40S76
(148",-934") 		W39-W49
(10) 		0.0 -0.8 -2.3e19

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 8-Jan-2022 20:30 UT .