17 November 2019
⇐20191116 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191118⇒

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 E10N18
(-162",256") 		E28-W18
(46) 		5.4 1.0 8.9e20
2 E32N64
(-227",854") 		E70-W41
(111) 		2.4 1.0 9.1e20
3 W25S08
(406",-180") 		W11-W33
(22) 		1.8 -0.1 -3.5e19
4 W42S54
(383",-801") 		W38-W50
(12) 		0.9 -0.6 -2.1e20
5 W40N70
(213",900") 		W13-W73
(60) 		0.4 0.9 1.9e20
6 E20N35
(-271",530") 		E25-E15
(10) 		0.4 0.6 4.4e19
7 W21S72
(103",-936") 		E04-W37
(41) 		0.2 -0.8 -1.1e20
8 W16N01
(263",-19") 		W12-W20
(8) 		0.2 1.3 4.0e19
9 E32S72
(-159",-933") 		E48-E15
(33) 		0.1 -1.0 -8.0e19
10 W55S27
(706",-465") 		W50-W56
(6) 		0.1 -1.0 -2.5e19
11 E10N28
(-149",417") 		E14-E06
(8) 		0.1 -1.0 -1.2e19
12 E39N35
(-496",534") 		E41-E35
(6) 		0.1 -0.4 -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 17-Nov-2019 23:40 UT .