13 November 2019
⇐20191112 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191114⇒

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 W05S40
(60",-666") 		E23-W25
(48) 		10.6 -0.5 -1.1e21
2 W17N69
(100",886") 		E77-W53
(130) 		2.1 1.1 9.0e20
3 E59N19
(-786",287") 		E73-E46
(27) 		0.8 0.7 1.6e20
4 W31S06
(498",-144") 		W25-W35
(10) 		0.3 0.9 5.3e19
5 E27S17
(-423",-332") 		E30-E24
(6) 		0.2 0.7 2.0e19
6 W41S04
(642",-100") 		W37-W47
(10) 		0.1 0.5 1.5e19
7 W31N15
(484",205") 		W25-W36
(11) 		0.1 -0.8 -1.7e19
8 E04N25
(-65",366") 		E07-E01
(6) 		0.1 -1.1 -1.8e19
9 E14N17
(-226",240") 		E16-E12
(4) 		0.1 -2.2 -2.0e19
10 W57S63
(370",-874") 		W57-W66
(9) 		0.1 -0.5 -2.2e19

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 13-Nov-2019 23:40 UT .