Διάστημα στα Αγγλικά μόνο - Μετεωρολογικός σταθμός Συκιάς Κορινθίας

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Space Weather Observations, Alerts, and Forecast

Forecast text

Product: 3-Day Forecast - Issued: 2024 Sep 17 0030 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center.

Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA Scale levels).
The greatest expected 3 hr Kp for Sep 17-Sep 19 2024 is 5.67 (NOAA Scale G2).

NOAA Kp index breakdown Sep 17-Sep 19 2024

	Sep 17	Sep 18	Sep 19
00-03UT	5.67 (G2)	2.67	2.33
03-06UT	5.00 (G1)	2.33	3.00
06-09UT	4.67 (G1)	2.33	2.33
09-12UT	4.00	2.33	2.00
12-15UT	2.67	2.33	1.67
15-18UT	2.33	2.00	1.33
18-21UT	2.33	2.33	1.33
21-00UT	3.00	2.67	2.00

Rationale: G1-G2 (Minor-Moderate) geomagnetic storming is likely on 17 Sep due to potential combined CH HSS and CME influences from separate events. Background conditions are expected on 18-19 Sep.

Solar Radiation Activity Observation

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Sep 17-Sep 19 2024

	Sep 17	Sep 18	Sep 19
S1 or greater	20%	15%	10%

Rationale: A slight chance for an S1 (Minor) solar radiation event will persist through 19 Sep as multiple active regions exist on the disk.

Radio Blackout Activity

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Sep 17-Sep 19 2024

	Sep 17	Sep 18	Sep 19
R1-R2	55%	45%	40%
R3 or greater	15%	10%	10%

Rationale: Solar activity is likely to reach moderate (R1-R2, Minor-Moderate), with a slight chance for X-class flares (R3-Strong), on 17 Sep. Probabilities are decreasing to a chance for M-class flares on 18-19 Sep as Regions 3814 and 3822 rotate around the NW limb.

Sun Images

eit 171	eit 195	eit 284	eit 304


Images: From left to right: EIT 171, EIT 195, EIT 284, EIT 304 EIT (Extreme ultraviolet Imaging Telescope) images the solar atmosphere at several wavelengths, and therefore, shows solar material at different temperatures. In the images taken at 304 Angstrom the bright material is at 60,000 to 80,000 degrees Kelvin. In those taken at 171 Angstrom, at 1 million degrees. 195 Angstrom images correspond to about 1.5 million Kelvin, 284 Angstrom to 2 million degrees. The hotter the temperature, the higher you look in the solar atmosphere.

SDO/HMI Continuum	SDO/HMI Magnetogram	LASCO C2	LASCO C3


The MDI (Michelson Doppler Imager) images shown here are taken in the continuum near the Ni I 6768 Angstrom line. The most prominent features are the sun spots.		LASCO (Large Angle Spectrometric Coronagraph) is able to take images of the solar corona by blocking the light coming directly from the Sun with an occulter disk, creating an artificial eclipse within the instrument itself.
for more information
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Auroral activity

Northern Auroral map	Southern Auroral map

Instruments on board the NOAA Polar-orbiting Operational Environmental Satellite (POES) continually monitor the power flux carried by the protons and electrons that produce aurora in the atmosphere. SWPC has developed a technique that uses the power flux observations obtained during a single pass of the satellite over a polar region (which takes about 25 minutes) to estimate the total power deposited in an entire polar region by these auroral particles. The power input estimate is converted to an auroral activity index that ranges from 1 to 10.

Introduction Movie

Conditions on the Sun and in the solar wind, magnetosphere, ionosphere and thermosphere that can influence the performance and reliability of space-borne and ground-based technological systems and can endanger human life or health. This introduction movie in the English language will open on a new tab/window when you click on the image below.

Also in Quicktime format: Large (269M) and Small ( 60M).

links

Space Weather links:

Losts of interesting information
3-Day Forecast of Solar and Geophysical Activity
Space Weather overview
LASCO Coronagraph
Solar wind
Forecast discussion
Solar and Heliospheric Observatory (SOHO)
The Very Latest SOHO Images

Space Agencies:
European Space Agency (ESA)
Institute of Space and Astronautical Science (ISAS)
National Aeronautics and Space Administration (NASA)
Russian Space Agency

Credits:

Space Weather Images and Information (excluded from copyright) courtesy of:
NOAA / NWS Space Weather Prediction Center, Mauna Loa Solar Observatory (HAO/NCAR), and SOHO (ESA & NASA).

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Equipment we use:

Μετεωρολογικός σταθμός
Davis Wireless Vantage Pro2