10 August 2019
⇐20190809 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190811⇒

NOAA
2 Active Regions
12746
12747

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 W02N70
(10",846") 		E59-W71
(130) 		3.7 1.4 1.8e21
2 E23S06
(-369",-190") 		32
(3.2e04) 		-0.2 4.1 1.3e21
3 W45S26
(604",-481") 		W36-W56
(20) 		0.7 -0.8 -1.5e20
4 E27N53
(-260",693") 		E38-E16
(22) 		0.3 0.4 3.1e19
5 E41S59
(-324",-846") 		E63-E33
(30) 		0.3 -0.9 -1.3e20
6 W16N04
(261",-39") 		W13-W19
(6) 		0.2 -1.1 -2.9e19
7 W12S70
(66",-919") 		E00-W21
(21) 		0.1 -0.9 -6.9e19
8 E10S69
(-56",-915") 		E15-E04
(11) 		0.1 -0.9 -3.6e19
9 W23N08
(369",30") 		W19-W26
(7) 		0.1 -1.2 -1.1e19
10 W20S17
(310",-372") 		W18-W22
(4) 		0.0 -1.1 -8.8e18
11 W60S30
(706",-522") 		W58-W64
(6) 		0.0 -2.0 -3.6e19
12 W04S04
(73",-171") 		W02-W07
(5) 		0.0 -1.4 -9.3e18

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 10-Aug-2019 23:30 UT .