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17 April 2021
20210416 Week Rotation Today Rotation Week 20210418

NOAA
3 Active Regions

Flare Forecast

Coronal Holes
 
Main Far-side SDO short-wave SDO long-wave
HMI Mag 20210417 17:58 HMI 6173Å 20210417 18:46 GHN Hα 20210417 19:14
SWAP 174Å 20210417 17:14 AIA 193Å 20210417 19:25 XRT 20210416 06:01
HMI Mag 20210417 17:58 No Time Data Available GONG Farside 20210416 12:00
No Time Data Available AIA 193Å 20210417 19:25 No Time Data Available
HMI Mag 20210417 17:58 AIA 94Å 20210417 19:24 AIA 131Å 20210417 19:27
AIA 171Å 20210417 19:24 AIA 193Å 20210417 19:25 AIA 211Å 20210417 19:27
HMI Mag 20210417 17:58 AIA 304Å 20210417 19:24 AIA 335Å 20210417 19:27
AIA 1600Å 20210417 19:26 AIA 1700Å 20210417 19:26 HMI 6173Å 20210417 18:46


Today's/Yesterday's NOAA Active Regions
NOAA Number
Latest
Position
Hale
Class
McIntosh Class
Sunspot Area
[millionths]
Number of Spots
Recent
Flares
12814 S22W55
(727",-309")
β/β Bxo/Dro 0020/0050 08/12 -
12815 S21W32
(474",-270")
β/- Bxo/--- 0010/---- 03/-- -
12816 S24E48
(-650",-332")
β/- Cao/--- 0080/---- 03/-- -

Class (HH:MM) -Today
Class (HH:MM) -Yesterday

Events not associated with currently named NOAA regions: None

Note: The tabulated data are based on the most recent NOAA/USAF Active Region Summary issued on 17-Apr-2021 00:30 UT . The greyed out and light-blue entries are values from the previous day. Slashed cells indicate that the active region has no spots. The latest positions of the active regions are given in both heliographic and heliocentric co-ordinates. The region positions are valid on 17-Apr-2021 19:30 UT .