20 November 2019
⇐20191119 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191121⇒

NOAA
1 Active Region
12752

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 W13N65
(91",868") 		E73-W75
(148) 		3.3 1.3 1.4e21
2 W34N20
(514",303") 		W15-W55
(40) 		2.8 0.8 4.1e20
3 E41S23
(-586",-411") 		E60-E23
(37) 		2.0 -0.3 -1.5e20
4 E08N06
(-135",57") 		17
(2.5e04) 		-0.4 3.8 9.6e20
5 W34S70
(190",-921") 		W08-W56
(48) 		0.4 -1.2 -2.6e20
6 E16S07
(-259",-157") 		E20-E12
(8) 		0.2 -1.1 -3.5e19
7 E53S10
(-767",-190") 		E58-E50
(8) 		0.1 -0.6 -1.7e19
8 E16N33
(-228",505") 		E19-E14
(5) 		0.1 -1.0 -1.5e19
9 W46S07
(693",-142") 		W42-W49
(7) 		0.1 1.8 2.5e19
10 W04N07
(61",77") 		W02-W05
(3) 		0.1 -1.9 -1.8e19
11 E26N33
(-360",505") 		E28-E24
(4) 		0.0 -0.7 -6.4e18
12 W04N48
(49",693") 		W02-W06
(4) 		0.0 -0.8 -5.6e18

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 20-Nov-2019 23:40 UT .