Monday, January 20, 2020

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2020 Jan 20 0748 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
#                Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 13 - 19 January 2020

Solar activity was very low. The solar disk was spotless. No Earth-directed CMEs were observed.

No proton events were observed at geosynchronous orbit.

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

Geomagnetic field activity was quiet with an isolated period of unsettled conditions on 16 Jan under a nominal solar wind regime.

Forecast of Solar and Geomagnetic Activity 20 January - 15 February 2020

Solar activity is expected to remain at very low levels.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on 21-22 January, due to recurrent CH HSS influence. Moderate levels are anticipated for the remainder of the outlook period.

Geomagnetic field activity is expected to reach active levels on 20-21 Jan with unsettled conditions forecasted on 22 Jan and 01-05 Feb due to recurrent CH HSS activity.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Jan 20 0748 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
#      27-day Space Weather Outlook Table
#                Issued 2020-01-20
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2020 Jan 20      72          12          4
2020 Jan 21      72          12          4
2020 Jan 22      72          10          3
2020 Jan 23      72           5          2
2020 Jan 24      72           5          2
2020 Jan 25      72           5          2
2020 Jan 26      72           5          2
2020 Jan 27      72           5          2
2020 Jan 28      72           5          2
2020 Jan 29      72           5          2
2020 Jan 30      72           5          2
2020 Jan 31      72           5          2
2020 Feb 01      72          10          3
2020 Feb 02      72          10          3
2020 Feb 03      72          10          3
2020 Feb 04      72          10          3
2020 Feb 05      72          10          3
2020 Feb 06      71           5          2
2020 Feb 07      71           5          2
2020 Feb 08      71           5          2
2020 Feb 09      71           5          2
2020 Feb 10      71           5          2
2020 Feb 11      71           5          2
2020 Feb 12      71           5          2
2020 Feb 13      71           5          2
2020 Feb 14      71           5          2
2020 Feb 15      71           5          2
(NOAA)

Monday, January 06, 2020

KTWR Testing DRM


Guam  
KTWR Chief Engineer Steve Brunson announced the KTWR DRM test transmission in
B19 Winter period as follows:

UTC
Wednesday 1026-1056 11995 50kW 315deg for China
Thursday 1226-1241 7500 50kW 320deg for Japan
Sunday 1026-1056 13800 90kW 285deg for India
Reports welcome via online report at http://www.twr.as (akahito Akabayashi BCDX)

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2020 Jan 06 0724 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
#                Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 30 December - 05 January 2020

Solar activity was very low. New Region 2755 (S34, L=355, class/area Bxo/020 on 03 Jan) developed on the SE limb on 01 Jan but was in decay by 04 Jan. No Earth-directed CMEs were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels on 30 Dec-04 Jan. Moderate levels were reached on 05 Jan with a maximum flux of 245 pfu observed at 05/1800 UTC.

Geomagnetic field activity was at quiet levels on 30 Dec-02 Jan under nominal solar wind conditions. On 03 Jan, total field increased to 10 nT at 03/0505 UTC with solar wind speed increasing to around 410 km/s. On 04 Jan, a prolonged period of southward Bz was observed reaching a maximum southward deflection of -4 nT. On 05 Jan, total field increased once again to 15 nT at 05/1743 UTC followed by an increase in solar wind speed to near 550 km/s as a negative polarity coronal hole high speed stream (CH HSS) became geoeffective. The geomagnetic field responded with isolated unsettled periods on 03-04 Jan and quiet to active levels on 05 Jan.

Forecast of Solar and Geomagnetic Activity 06 January - 01 February 2020

Solar activity is expected to continue at very low levels.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal levels on 08-14 Jan and 23 Jan-01 Feb. Moderate levels are expected on 06-07 Jan and again on 15-22 Jan.

Geomagnetic field activity is expected to reach unsettled levels on 08-10 Jan and 01 Feb. Unsettled to active levels are expected on 06 Jan and14-15 Jan due to recurrent CH HSS effects.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2020 Jan 06 0724 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
#      27-day Space Weather Outlook Table
#                Issued 2020-01-06
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2020 Jan 06      72          12          4
2020 Jan 07      72           5          2
2020 Jan 08      72           8          3
2020 Jan 09      72           8          3
2020 Jan 10      72           8          3
2020 Jan 11      72           5          2
2020 Jan 12      71           5          2
2020 Jan 13      70           5          2
2020 Jan 14      70          12          4
2020 Jan 15      70          12          4
2020 Jan 16      70           5          2
2020 Jan 17      70           5          2
2020 Jan 18      70           5          2
2020 Jan 19      70           5          2
2020 Jan 20      70           5          2
2020 Jan 21      70           5          2
2020 Jan 22      70           5          2
2020 Jan 23      70           5          2
2020 Jan 24      70           5          2
2020 Jan 25      71           5          2
2020 Jan 26      72           5          2
2020 Jan 27      72           5          2
2020 Jan 28      72           5          2
2020 Jan 29      72           5          2
2020 Jan 30      72           5          2
2020 Jan 31      72           5          2
2020 Feb 01      72           8          3
(NOAA)

Thursday, January 02, 2020

Frequency updates



All times UTC

New Zealand
Radio New Zealand Pacific Sun-Fri DRM:
1651-1750 on  5975 RAN 035 kW / 035 deg to Tonga/Samoa English unchanged
1751-1850 NF 11690*RAN 035 kW / 035 deg to Tonga/Samoa English, ex  9780
1851-1958 NF 13840*RAN 035 kW / 035 deg to Tonga/Samoa English, ex 11690
* both freqs are unregistered for this time slots


United Kingdom
BBC - cancelled transmissions
Effective: 01 Jan 2020
0100-0130 on  5845 TAC 100 kW / 141 deg to SoAs Hindi
0100-0130 on  5875 WOF 250 kW / 075 deg to SoAs Hindi
0100-0130 on  7430 WOF 300 kW / 082 deg to SoAs Hindi
0100-0130 on 11995 SNG 250 kW / 315 deg to SoAs Hindi
1500-1600 on  7410 DHA 250 kW / 045 deg to SoAs Urdu
1500-1600 on  9410 SNG 250 kW / 315 deg to SoAs Urdu
1500-1600 on 11995 SNG 250 kW / 320 deg to SoAs Urdu

Only one transmission of BBC in Hindi is on the air:
1400-1430 on  5875 TAC 100 kW / 141 deg to SoAs Hindi
1400-1430 on  9510 SNG 250 kW / 320 deg to SoAs Hindi
1400-1430 on  9540 SLA 250 kW / 075 deg to SoAs Hindi
1400-1430 on 11995 SNG 250 kW / 315 deg to SoAs Hindi
(DX Bulgaria 01 Jan 2020)

Weekly Propagation Forecast Bulletins



Product: Weekly Highlights and Forecasts
:Issued: 2019 Dec 30 0435 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
#                Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity 23 - 29 December 2019

Solar activity was very low. New Region 2753 (S29, L=122, class/area Bxo/010 on 25 Dec) developed on the visible disk on late on 23 December while Region 2754 (N25, L=191, class/area Axx/010 on 25 Dec) developed on 24 Dec. Both regions were inactive and decayed to plage on 26 Dec. No Earth-directed CMEs were observed during the period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels on 27-29 Dec and reached moderate levels on 23-26 Dec. The maximum flux of the period was 462 pfu observed at 25/1810 UTC.

Geomagnetic field activity ranged from quiet to unsettled levels. A slight enhancement in solar wind parameters occurred beginning late on 25 Dec as a weak negative polarity coronal hole high speed stream (CH HSS) became geoeffective. Total field increased to a maximum of 9 nT at 25/1920 UTC while solar wind speed reached a maximum of 415 km/s at 26/1435 UTC. The geomagnetic field responded with an isolated unsettled period early on 26 Dec.

Forecast of Solar and Geomagnetic Activity 30 December - 25 January 2020

Solar activity is expected to continue at very low levels.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal levels on 06-14 and 23-25 Jan while moderate levels are expected on 30 Dec-05 Jan and 15-22 Jan.

Geomagnetic field activity is expected to reach unsettled levels on 30 Dec-01 Jan due to weak CH HSS activity. Unsettled to active levels are expected on 14-15 Jan due to recurrent CH HSS activity.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2019 Dec 30 0435 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/content/subscription-services
#
#      27-day Space Weather Outlook Table
#                Issued 2019-12-30
#
#   UTC      Radio Flux   Planetary   Largest
#  Date       10.7 cm      A Index    Kp Index
2019 Dec 30      72           8          3
2019 Dec 31      72           8          3
2020 Jan 01      71           8          3
2020 Jan 02      71           5          2
2020 Jan 03      70           5          2
2020 Jan 04      70           5          2
2020 Jan 05      70           5          2
2020 Jan 06      70           5          2
2020 Jan 07      70           5          2
2020 Jan 08      70           5          2
2020 Jan 09      70           5          2
2020 Jan 10      70           5          2
2020 Jan 11      70           5          2
2020 Jan 12      72           5          2
2020 Jan 13      72           5          2
2020 Jan 14      72          12         4
2020 Jan 15      72          12         4
2020 Jan 16      72           5          2
2020 Jan 17      72           5          2
2020 Jan 18      72           5          2
2020 Jan 19      72           5          2
2020 Jan 20      72           5          2
2020 Jan 21      72           5          2
2020 Jan 22      72           5          2
2020 Jan 23      72           5          2
2020 Jan 24      72           5          2
2020 Jan 25      72           5          2
(NOAA)