8 March 2021
⇐20210307 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210309⇒

NOAA
1 Active Region
12806

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 E23S17
(-367",-170") 		E55-W06
(61) 		5.8 -0.4 -3.9e20
2 W28N13
(442",328") 		W03-W54
(51) 		4.3 0.2 1.7e20
3 E41S67
(-249",-847") 		E79-W22
(101) 		3.1 -0.6 -7.3e20
4 E40N11
(-616",277") 		E52-E30
(22) 		1.8 0.2 9.4e19
5 E22N26
(-325",530") 		E31-E13
(18) 		0.6 0.7 8.3e19
6 E10N34
(-134",639") 		E15-W00
(15) 		0.4 0.8 6.4e19
7 E12S55
(-118",-721") 		E18-E04
(14) 		0.4 -0.5 -4.5e19
8 W03N33
(48",628") 		E01-W07
(8) 		0.2 0.6 3.0e19
9 E02N21
(-29",460") 		E03-W01
(4) 		0.1 1.7 2.6e19
10 W09N38
(123",688") 		W07-W11
(4) 		0.1 -1.0 -1.3e19
11 E17S30
(-246",-373") 		E20-E14
(6) 		0.1 -1.3 -1.2e19
12 E11N21
(-169",462") 		E13-E09
(4) 		0.0 -1.0 -8.1e18
13 E55S44
(-569",-613") 		E56-E54
(2) 		0.0 1.3 1.6e19

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 8-Mar-2021 12:30 UT .