14 March 2021
⇐20210313 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210315⇒

NOAA
2 Active Regions
12808
12809

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 W26N22
(393",453") 		E00-W54
(54) 		6.9 0.3 4.4e20
2 E22S64
(-162",-813") 		E64-W73
(137) 		6.0 -0.9 -1.6e21
3 E49S30
(-631",-404") 		E75-E39
(36) 		1.7 -2.3 -9.6e20
4 W39S46
(418",-624") 		W30-W43
(13) 		0.6 -0.5 -7.4e19
5 W15N58
(136",874") 		W09-W25
(16) 		0.3 1.1 1.4e20
6 W36N09
(556",253") 		W34-W38
(4) 		0.0 -0.7 -5.4e18

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 14-Mar-2021 20:30 UT .