19 November 2021
⇐20211118 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20211120⇒

NOAA
3 Active Regions
12896
12897
12895

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 W24S01
(396",-58") 		E11-W46
(57) 		3.9 0.2 1.3e20
2 W13S29
(191",-508") 		E10-W24
(34) 		3.7 -2.3 -1.6e21
3 W18S60
(154",-859") 		E46-W43
(89) 		2.9 -0.4 -4.5e20
4 E38N52
(-369",748") 		E67-E25
(42) 		0.8 0.5 1.1e20
5 W19S11
(319",-216") 		W18-W21
(3) 		0.0 -0.9 -6.1e18
6 E59S12
(-812",-218") 		E61-E55
(6) 		0.0 -0.6 -7.0e18

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-2021 20:30 UT .