25 July 2020
⇐20200724 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200726⇒

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 W12S15
(196",-321") 		E35-W45
(80) 		12.4 -0.3 -6.3e20
2 E17N66
(-109",828") 		E77-W86
(163) 		2.9 0.9 8.5e20
3 W01S58
(12",-846") 		E49-W38
(87) 		2.3 -0.9 -6.9e20
4 W11N35
(147",468") 		W03-W17
(14) 		0.4 0.6 4.9e19
5 W59N71
(267",874") 		W36-W83
(47) 		0.2 0.9 1.1e20
6 W03N24
(37",307") 		W00-W04
(4) 		0.1 -1.1 -1.5e19
7 W32N38
(402",516") 		W30-W37
(7) 		0.1 -1.3 -2.1e19
8 E11S37
(-140",-631") 		E14-E07
(7) 		0.1 -2.3 -3.2e19
9 W24N47
(265",632") 		W21-W27
(6) 		0.1 -0.7 -9.5e18
10 E05N12
(-81",103") 		E07-E02
(5) 		0.1 -1.1 -9.4e18

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 25-Jul-2020 19:00 UT .