19 November 2020
⇐20201118 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201120⇒

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 W04N47
(51",682") 		E64-W32
(96) 		15.0 0.5 1.6e21
2 W40N11
(612",162") 		W27-W51
(24) 		1.4 -0.2 -5.6e19
3 E28S69
(-160",-920") 		E62-W40
(102) 		0.8 -0.6 -3.0e20
4 W50N30
(642",462") 		W42-W56
(14) 		0.4 0.5 5.7e19
5 W09S40
(111",-651") 		E01-W13
(14) 		0.3 -0.6 -3.0e19
6 E53N43
(-568",651") 		E60-E49
(11) 		0.1 1.0 3.8e19
7 E40N31
(-534",475") 		E42-E37
(5) 		0.1 3.6 6.0e19
8 W43S70
(226",-921") 		W41-W58
(17) 		0.0 -0.7 -2.3e19
9 W39N39
(472",591") 		W36-W42
(6) 		0.0 -1.1 -1.1e19

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 19-Nov-2020 20:30 UT .