22 October 2020
⇐20201021 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201023⇒

NOAA
1 Active Region
12776

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 E06N53
(-63",711") 		E51-W41
(92) 		10.2 1.0 2.3e21
2 E02S11
(-31",-265") 		E25-W22
(47) 		7.5 0.1 9.1e19
3 W32N24
(469",331") 		W17-W42
(25) 		2.0 0.1 4.9e19
4 E08S38
(-99",-662") 		E11-E04
(7) 		0.2 -1.3 -5.7e19
5 E36S66
(-231",-905") 		E44-E30
(14) 		0.1 -0.5 -4.0e19
6 W08S33
(108",-591") 		W06-W09
(3) 		0.1 -0.7 -7.2e18
7 W12S36
(160",-631") 		W09-W14
(5) 		0.0 1.8 1.5e19
8 W39N35
(501",501") 		W38-W42
(4) 		0.0 1.0 8.9e18

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-Oct-2020 23:30 UT .