1 September 2020
⇐20200831 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200902⇒

NOAA
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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 W08S13
(127",-333") 		E10-W21
(31) 		3.8 0.1 3.3e19
2 W46N69
(249",850") 		E30-W83
(113) 		1.7 1.0 7.5e20
3 W42N38
(498",514") 		W29-W63
(34) 		1.5 1.0 3.5e20
4 E28S57
(-243",-852") 		E45-E17
(28) 		0.7 -0.4 -1.2e20
5 E06S40
(-72",-696") 		E08-E00
(8) 		0.1 -0.9 -2.9e19
6 E11S51
(-115",-808") 		E17-E07
(10) 		0.1 -1.0 -3.7e19
7 E16S47
(-182",-772") 		E19-E13
(6) 		0.1 -0.9 -2.5e19
8 W28N47
(304",619") 		W27-W30
(3) 		0.1 0.4 4.6e18
9 W46S13
(665",-297") 		W43-W48
(5) 		0.0 -1.1 -1.3e19

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 1-Sep-2020 19:00 UT .