2 October 2020
⇐20201001 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201003⇒

NOAA
1 Active Region
12773

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 E12N01
(-201",-88") 		E34-W14
(48) 		4.6 0.5 3.5e20
2 W12S55
(109",-847") 		E27-W20
(47) 		1.2 -0.4 -1.6e20
3 W16N32
(228",409") 		W03-W22
(19) 		0.6 -2.1 -2.3e20
4 E24S58
(-210",-861") 		E53-E08
(45) 		0.5 -0.5 -9.3e19
5 W29S54
(273",-826") 		W23-W32
(9) 		0.1 -0.6 -1.7e19
6 W09S38
(118",-669") 		W06-W11
(5) 		0.0 -0.7 -7.5e18
7 W30S70
(163",-927") 		W28-W37
(9) 		0.0 -0.7 -2.3e19
8 W30N30
(418",390") 		W28-W32
(4) 		0.0 -2.1 -1.6e19
9 W11S04
(178",-181") 		W09-W12
(3) 		0.0 -2.2 -1.4e19

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 2-Oct-2020 23:30 UT .