25 November 2020
⇐20201124 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201126⇒

NOAA
4 Active Regions
12783
12785
12786
12784

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 W17N04
(278",39") 		E32-W46
(78) 		9.1 -0.0 -6.7e19
2 W41N63
(292",855") 		E56-W55
(111) 		2.9 0.8 9.2e20
3 E09S33
(-130",-553") 		E13-E03
(10) 		0.3 0.8 5.4e19
4 E56N70
(-274",909") 		E71-E54
(17) 		0.0 2.0 6.1e19
5 E33S19
(-509",-334") 		E35-E32
(3) 		0.0 -1.9 -1.2e19

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 25-Nov-2020 20:30 UT .