16 October 2020
⇐20201015 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201017⇒

NOAA
2 Active Regions
12776
12775

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 E02N69
(-10",862") 		E81-W72
(153) 		3.0 1.2 1.2e21
2 W25S12
(393",-278") 		W09-W38
(29) 		2.9 -0.4 -2.3e20
3 E07S62
(-58",-894") 		E54-W51
(105) 		1.6 -0.7 -4.6e20
4 E24S26
(-354",-501") 		E36-E12
(24) 		1.6 -1.2 -3.9e20
5 E43N30
(-568",418") 		E53-E32
(21) 		0.5 0.5 5.8e19
6 E18S04
(-291",-167") 		E20-E15
(5) 		0.1 1.5 2.9e19
7 E02S45
(-21",-748") 		E03-W01
(4) 		0.1 -1.1 -1.9e19
8 E21S04
(-349",-155") 		E23-E20
(3) 		0.1 -1.0 -9.5e18
9 E05S05
(-90",-175") 		E07-E04
(3) 		0.1 -1.6 -1.3e19
10 W34N01
(540",-57") 		W33-W35
(2) 		0.0 -1.9 -1.6e19

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 16-Oct-2020 01:30 UT .