12 January 2022
⇐20220111 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220113⇒

NOAA
4 Active Regions
12924
12925
12926
12927

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 E16S15
(-266",-187") 		E33-W15
(48) 		5.3 -1.5 -1.3e21
2 E24S61
(-190",-817") 		E48-W76
(124) 		4.9 -0.8 -1.2e21
3 W28N53
(273",819") 		W01-W44
(43) 		2.0 0.2 1.6e20
4 W37N01
(587",76") 		W25-W47
(22) 		1.6 0.5 1.5e20
5 W33N11
(521",239") 		W30-W36
(6) 		0.1 -1.3 -1.9e19
6 E08N11
(-132",255") 		E10-E05
(5) 		0.1 -2.6 -3.1e19

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-2022 20:30 UT .