8 August 2020
⇐20200807 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200809⇒

NOAA
3 Active Regions
12770
12768
12769

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 E18S17
(-274",-375") 		E35-W16
(51) 		5.8 -0.2 -2.3e20
2 W33S03
(518",-139") 		W14-W56
(42) 		3.7 -0.1 -1.0e20
3 E35N71
(-174",863") 		E73-W90
(163) 		2.0 1.2 1.0e21
4 E15S66
(-100",-903") 		E44-W17
(61) 		0.5 -0.7 -1.8e20
5 E25S24
(-369",-468") 		E29-E19
(10) 		0.1 -1.3 -3.4e19
6 W20N17
(314",186") 		W17-W23
(6) 		0.1 -0.9 -1.5e19
7 W33S33
(438",-589") 		W31-W35
(4) 		0.0 0.5 6.2e18

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 8-Aug-2020 19:00 UT .