3 January 2022
⇐20220102 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220104⇒

NOAA
4 Active Regions
12916
12922
12919
12923

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 W07S04
(127",-18") 		E27-W33
(60) 		5.5 0.1 6.1e19
2 E26S43
(-313",-635") 		E38-E01
(37) 		4.5 -1.4 -1.4e21
3 W22S20
(348",-291") 		W17-W26
(9) 		0.3 -1.4 -6.2e19
4 W05S28
(75",-414") 		W00-W08
(8) 		0.2 -1.5 -5.6e19
5 W30N07
(492",174") 		W27-W34
(7) 		0.1 -1.3 -2.5e19
6 E04N23
(-66",436") 		6
(8.6e02) 		-0.8 3.2 2.8e19

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 3-Jan-2022 20:30 UT .