2 September 2020
⇐20200901 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200903⇒

NOAA
0 Active Regions

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 W13S14
(207",-338") 		E13-W29
(42) 		2.4 -0.1 -3.2e19
2 E16S55
(-144",-844") 		E41-W05
(46) 		1.3 -0.6 -2.6e20
3 W55N38
(616",530") 		W42-W68
(26) 		0.9 0.8 2.2e20
4 W60N70
(288",865") 		W44-W76
(32) 		0.7 0.8 2.8e20
5 E69N63
(-402",822") 		E80-E50
(30) 		0.2 0.5 5.2e19
6 W10S30
(149",-572") 		W08-W13
(5) 		0.1 -0.9 -9.3e18
7 W10S38
(132",-671") 		W08-W12
(4) 		0.0 -1.6 -1.5e19

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 2-Sep-2020 19:00 UT .