8 June 2021
⇐20210607 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210609⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W18N57
(161",787") 		E68-W59
(127) 		4.5 0.6 8.3e20
2 E48S48
(-475",-702") 		E70-E14
(56) 		2.4 -0.4 -3.5e20
3 W48S11
(688",-177") 		W36-W65
(29) 		1.8 -0.6 -2.5e20
4 W05S08
(85",-142") 		E12-W16
(28) 		1.6 0.2 4.3e19
5 E43S11
(-634",-176") 		E48-E37
(11) 		0.5 -0.6 -6.2e19
6 W46S55
(390",-775") 		W35-W56
(21) 		0.4 -1.1 -1.6e20
7 W46N16
(655",258") 		W40-W51
(11) 		0.4 -0.8 -6.6e19
8 W30S72
(145",-900") 		W13-W39
(26) 		0.3 -1.0 -1.5e20
9 E61S17
(-792",-284") 		E66-E56
(10) 		0.2 -1.0 -7.3e19
10 W50N31
(626",484") 		W47-W55
(8) 		0.1 2.0 3.4e19
11 E45N12
(-651",189") 		E46-E42
(4) 		0.0 -0.5 -4.1e18

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 8-Jun-2021 23:30 UT .