22 August 2020
⇐20200821 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200823⇒

NOAA
2 Active Regions
12771
12772

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 W30S01
(469",-110") 		W11-W49
(38) 		5.6 -0.3 -3.3e20
2 E25N62
(-184",786") 		E80-W23
(103) 		4.5 0.7 9.6e20
3 E08S09
(-138",-255") 		E24-W15
(39) 		3.3 -0.0 -2.9e18
4 E27N34
(-363",438") 		E41-E07
(34) 		2.4 0.3 1.5e20
5 E53N26
(-684",355") 		E66-E40
(26) 		0.6 0.6 9.1e19
6 E33S66
(-213",-898") 		E49-E06
(43) 		0.4 -0.6 -1.6e20
7 W06N12
(104",78") 		W03-W09
(6) 		0.3 -1.0 -3.8e19
8 W02N05
(37",-30") 		E00-W05
(5) 		0.1 -1.1 -1.9e19
9 W01S30
(15",-576") 		E03-W05
(8) 		0.1 -1.2 -2.5e19
10 E10S26
(-151",-515") 		E13-E08
(5) 		0.1 -1.0 -1.4e19
11 E46N13
(-664",138") 		E48-E44
(4) 		0.0 -0.6 -6.2e18

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 22-Aug-2020 19:00 UT .