12 March 2020
⇐20200311 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200313⇒

NOAA
1 Active Region
12758

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 E09S68
(-58",-841") 		E79-W75
(154) 		4.8 -1.0 -6.0e21
2 W15N14
(237",351") 		E05-W28
(33) 		4.8 -0.2 -2.1e20
3 E19N00
(-313",121") 		E38-E01
(37) 		3.2 -0.1 -3.8e19
4 W28S13
(441",-112") 		W14-W43
(29) 		3.0 -0.1 -6.5e19
5 W26N52
(259",823") 		W05-W37
(32) 		1.1 0.8 1.2e21
6 E25N66
(-161",922") 		E48-E06
(42) 		0.3 0.9 1.3e21
7 E02N31
(-25",595") 		E04-W03
(7) 		0.1 -1.2 -3.5e19
8 E28N16
(-437",372") 		E30-E26
(4) 		0.0 -1.2 -2.1e19

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-Mar-2020 20:30 UT .