14 July 2021
⇐20210713 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210715⇒

NOAA
3 Active Regions
12842
12839
12841

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 W09N11
(150",105") 		E28-W35
(63) 		6.8 0.0 3.0e19
2 W36S48
(373",-735") 		E27-W47
(74) 		3.8 -1.0 -1.2e21
3 W37N70
(193",867") 		E13-W75
(88) 		1.2 0.9 5.0e20
4 E47N61
(-334",799") 		E49-E31
(18) 		0.6 1.0 2.4e20
5 W63S14
(817",-252") 		W54-W70
(16) 		0.3 -0.5 -5.2e19

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 14-Jul-2021 11:30 UT .