20 November 2020
⇐20201119 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201121⇒

NOAA
2 Active Regions
12783
12782

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 W04N51
(48",733") 		E48-W36
(84) 		11.3 0.7 1.8e21
2 W40N18
(597",270") 		W28-W54
(26) 		1.0 -0.7 -1.3e20
3 E09S69
(-52",-921") 		E52-W39
(91) 		0.9 -0.8 -3.3e20
4 E24N30
(-345",453") 		E32-E18
(14) 		0.3 3.8 2.3e20
5 W22S40
(275",-651") 		W17-W26
(9) 		0.2 -1.0 -3.4e19
6 W13S29
(198",-510") 		W12-W16
(4) 		0.1 -1.1 -1.3e19
7 W37N02
(591",3") 		W35-W40
(5) 		0.1 -2.8 -3.4e19
8 W11N07
(184",90") 		W10-W13
(3) 		0.1 -1.3 -1.1e19
9 W25S08
(406",-162") 		W23-W27
(4) 		0.0 -1.4 -1.0e19
10 E06S60
(-51",-856") 		E08-E03
(5) 		0.0 -1.4 -1.9e19

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 20-Nov-2020 20:30 UT .