23 January 2022
⇐20220122 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220124⇒

NOAA
3 Active Regions
12933
12934
12932

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 W27N02
(450",114") 		W15-W40
(25) 		2.5 0.8 3.6e20
2 E28N05
(-456",165") 		E37-E17
(20) 		2.2 1.3 4.9e20
3 W63S65
(361",-867") 		W47-W63
(16) 		0.5 -0.6 -1.5e20
4 E46N04
(-695",138") 		E50-E42
(8) 		0.2 -0.5 -2.2e19
5 W47N22
(664",415") 		W40-W52
(12) 		0.2 1.8 7.9e19
6 E38N03
(-603",127") 		E42-E34
(8) 		0.2 -0.6 -2.0e19
7 W17S02
(288",61") 		W15-W20
(5) 		0.1 -3.0 -2.6e19
8 W00N06
(4",198") 		E02-W03
(5) 		0.1 -2.5 -2.1e19
9 W42N16
(632",334") 		W41-W44
(3) 		0.0 5.8 6.4e19

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 23-Jan-2022 20:30 UT .