17 February 2020
⇐20200216 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200218⇒

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 W05N06
(82",222") 		E32-W41
(73) 		9.7 -0.0 -3.3e19
2 W12S63
(94",-804") 		E82-W53
(135) 		5.8 -1.1 -5.9e21
3 W32S18
(498",-196") 		W30-W35
(5) 		0.1 -0.9 -2.0e19
4 E25N33
(-349",612") 		E27-E21
(6) 		0.1 -1.3 -4.7e19
5 W37S12
(574",-109") 		W34-W39
(5) 		0.1 -0.6 -1.3e19
6 W21S07
(348",-9") 		W19-W23
(4) 		0.0 -1.3 -1.1e19

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-Feb-2020 20:30 UT .