23 July 2020
⇐20200722 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200724⇒

NOAA
1 Active Region
12767

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 E02S04
(-27",-145") 		E45-W35
(80) 		10.9 -0.1 -2.4e20
2 E24S59
(-199",-846") 		E41-W16
(57) 		1.8 -0.5 -3.2e20
3 E34N66
(-218",829") 		E56-W04
(60) 		1.7 1.1 6.5e20
4 E10S36
(-132",-618") 		E16-W03
(19) 		0.8 -0.6 -9.0e19
5 W46N71
(220",873") 		W13-W57
(44) 		0.8 1.0 4.1e20
6 W48N01
(708",-37") 		W42-W54
(12) 		0.3 -0.9 -6.6e19
7 E45N01
(-666",-37") 		E51-E37
(14) 		0.2 0.4 2.3e19
8 W38N03
(579",-18") 		W36-W39
(3) 		0.1 -0.6 -6.3e18
9 W45S03
(666",-114") 		W43-W47
(4) 		0.0 -1.7 -1.7e19

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 23-Jul-2020 19:00 UT .