10 February 2022
⇐20220209 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220211⇒

NOAA
4 Active Regions
12939
12940
12941
12943

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 E01S25
(-12",-308") 		E12-W10
(22) 		1.8 -5.1 -1.5e21
2 E35S66
(-222",-848") 		E86-E27
(59) 		1.0 -1.2 -4.5e20
3 E15N12
(-245",304") 		E23-E07
(16) 		0.7 -1.1 -1.3e20
4 E06S11
(-106",-71") 		E10-E01
(9) 		0.5 -4.0 -3.2e20
5 W21S14
(331",-140") 		W17-W23
(6) 		0.1 -1.5 -3.2e19
6 W44N36
(550",630") 		W37-W54
(17) 		0.1 -0.3 -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 10-Feb-2022 20:30 UT .