Celebrate 'International Observe the Moon Night' with NASA

Friday, 23 September 2022

The public is invited to participate in NASA’s celebration of "International Observe the Moon Night" on Saturday, Oct. 1.

19.04.2024 at 16:19:26 UTC

Type	Apr 19	Apr 20	Apr 21
Active	25%	30%	35%
Minor	5%	20%	25%
Moderate	1%	5%	5%
Strong	1%	1%	1%
Kp Index Prediction
00-03UT	1.67	2.00	3.00
03-06UT	2.00	1.00	3.67
06-09UT	1.67	2.00	2.67
09-12UT	1.67	1.00	2.67
12-15UT	1.67	2.67	2.00
15-18UT	1.67	2.67	2.00
18-21UT	2.00	3.00	3.00
21-00UT	2.00	3.00	2.00
Solar Activity
Solar activity reached moderate levels this period. Region 3647 (S13E07, Dac/beta-delta) produced three M-flares (R1/Minor), the largest of which was an M2.1 flare at 19/0453 UTC. Region 3647 began to show signs of separation of the shared penumbra between its principle spots. Region 3645 (S09E03, Dai/beta) underwent slight decay in its intermediate spot area and consolidation of the leader and trailing spots. Region 3639 (N29E05, Eai/beta-gamma) slowly decayed throughout the period. New Regions 3649 (N16W17, Bxi/beta) and 3650 (S11E28, Cro/beta) were numbered, but were otherwise unremarkable.
Solar Wind
Solar wind conditions became enhanced beginning at 19/0413 UTC due to CME activity. Following CME arrival, total field strength reached 16 nT and the Bz component was sustained southward after 19/0410 with a peak of -14 nT observed. Solar wind speeds reached a peak of 439 km/s at 19/1050 UTC.
Energetic Particle
The greater than 2 MeV electron flux was at normal to moderate levels and the greater than 10 MeV proton flux was steady at background levels.