26 February 2021
⇐20210225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210227⇒

NOAA
3 Active Regions
12804
12805
12803

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 E09S51
(-94",-671") 		E88-W10
(98) 		5.5 -1.7 -2.0e21
2 E23N09
(-375",263") 		E34-E10
(24) 		2.0 -0.2 -7.3e19
3 E48S15
(-699",-172") 		E59-E32
(27) 		2.0 1.1 4.7e20
4 W13N56
(122",864") 		E27-W40
(67) 		1.6 0.7 3.8e20
5 W28S08
(453",-34") 		W23-W34
(11) 		0.3 -1.0 -6.0e19
6 E10N03
(-162",178") 		E14-E04
(10) 		0.3 -1.5 -7.0e19

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 26-Feb-2021 20:30 UT .