6 January 2022
⇐20220105 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220107⇒

NOAA
4 Active Regions
12924
12925
12919
12922

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 W13S41
(169",-590") 		E25-W42
(67) 		9.7 -0.9 -1.6e21
2 E25N61
(-198",880") 		E37-W31
(68) 		1.5 0.5 2.8e20
3 E45N52
(-430",793") 		E52-E34
(18) 		0.3 0.6 7.1e19
4 E01N29
(-12",526") 		E02-W01
(3) 		0.1 3.9 1.0e20
5 E32S08
(-508",-79") 		E35-E29
(6) 		0.1 -0.9 -1.5e19
6 W08N06
(132",157") 		W06-W10
(4) 		0.1 2.1 2.9e19
7 E14S11
(-225",-118") 		E15-E12
(3) 		0.1 -1.2 -1.2e19
8 E35S20
(-531",-285") 		E37-E33
(4) 		0.1 -0.9 -9.0e18
9 W13N01
(221",71") 		W12-W14
(2) 		0.0 -1.8 -1.2e19

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 6-Jan-2022 20:30 UT .