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Propagation outlook from SWPC Boulder

:Product: Weekly Highlights and Forecasts
:Issued: 2020 Jul 27 0132 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# https://www.swpc.noaa.gov/content/subscription-services
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
20 – 26 July 2020

Solar activity was very low throughout the period. New Region 2767
(S21, L=200, class/area Hsx/120 on 26 Jul) rotated onto the disk on
21 Jul, but was quiet and stable. A slow-moving, partial halo CME
was detected in coronagraph imagery in the NE quadrantat at about
19/1135 UTC. Subsequent model analysis indicated an Earth-directed
component would likely become geoeffective on 24-25 Jul. No other
CME activity was detected during the period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
normal to moderate levels throughout the period.

Geomagnetic field activity was at quiet levels 20-23 Jul. Field
conditions reached unsettled to active levels on 24-25 Jul due to
effects from the 19 Jul CME. A return to quiet conditions was
observed on 26 Jul. Solar wind parameters reflected enhanced
conditions on 24-25 Jul as a result of CME effects. Solar wind
speeds increased from approximately 300 km/s to near 415 km/s. Total
field peaked at 11 nT while the Bz component dropped south to -10
nT. Density levels increased to 28 particles/cc. Ambient solar wind
parameters were present on 20-23 Jul and 26 Jul.

Forecast of Solar and Geomagnetic Activity
27 July – 22 August 2020

Solar activity is expected to be very low throughout the outlook
period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at normal to moderate levels thoughout the outlook
period.

Geomagnetic field activity is expected to be quiet to unsettled on
28-29 Jul due to a negative polarity CH HSS. Quiet conditions are
expected to prevail throughout the rest of the outlook period.

:Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Jul 27 0132 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# https://www.swpc.noaa.gov/content/subscription-services
#
# 27-day Space Weather Outlook Table
# Issued 2020-07-27
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2020 Jul 27 71 5 2
2020 Jul 28 71 8 3
2020 Jul 29 70 8 3
2020 Jul 30 70 5 2
2020 Jul 31 70 5 2
2020 Aug 01 70 5 2
2020 Aug 02 69 5 2
2020 Aug 03 68 5 2
2020 Aug 04 68 5 2
2020 Aug 05 68 5 2
2020 Aug 06 68 5 2
2020 Aug 07 68 5 2
2020 Aug 08 68 5 2
2020 Aug 09 68 5 2
2020 Aug 10 68 5 2
2020 Aug 11 68 5 2
2020 Aug 12 68 5 2
2020 Aug 13 68 5 2
2020 Aug 14 68 5 2
2020 Aug 15 68 5 2
2020 Aug 16 68 5 2
2020 Aug 17 68 5 2
2020 Aug 18 68 5 2
2020 Aug 19 68 5 2
2020 Aug 20 68 5 2
2020 Aug 21 68 5 2
2020 Aug 22 68 5 2

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