Author Archive
Weekly Propagation Summary – 2019 Aug 19 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2019 Aug 19 0141 UTC.
Highlights of Solar and Geomagnetic Activity 12 – 18 August 2019
Solar activity was very low. The visible disk was spotless with no Earth-directed CMEs observed.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at high levels on 12-17 Aug with moderate levels on 18 Aug. A maximum flux of 5,340 pfu was observed at 13/1725 UTC.
Geomagnetic field activity was at predominately quiet levels with isolated unsettled intervals observed midday on 16 Aug and early on 18 Aug. Solar wind parameters reflected a nominal environment through the period.
Forecast of Solar and Geomagnetic Activity 19 August – 14 September 2019
Solar activity is expected to continue at very low levels through the oulook period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be normal to moderate levels on 19 – 31 Aug. Flux readings are expected to increase to moderate to high levels on 01 – 14 Sep.due to recurrent CH HSS influence.
Geomagnetic field activity is expected to reach unsettled levels on 20 – 22 Aug, 26 – 28 Aug and 06 – 07 Sep due to recurrent CH HSS activity. Active to G1 (minor) storm conditions are likely on 01 – 02 Sep due to recurrent CH HSS activity.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx
– – – – – – – – – – – – –
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
– – – – – – – – – – – – –
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..
Weekly Propagation Summary – 2019 Aug 12 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2019 Aug 12 0624 UTC.
Highlights of Solar and Geomagnetic Activity 05 – 11 August 2019
Solar activity was very low. 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 moderate levels on 05 Aug and at high levels from 06-11 Aug. The largest flux of the period was 26,161 pfu observed at 07/1930 UTC.
Geomagnetic field activity was at quiet to G1 (Minor) storm levels over the period. The period began as a positive polarity coronal hole high speed stream (CH HSS) was becoming geoeffective. Total field increased to 23 nT by 05/0855 UTC as the Bz component became variable between +11 nT/-19 nT. Solar wind speed reached a maximum of 745 km/s at 06/0750 UTC. The geomagnetic field responded with four consecutive periods of G1 (Minor) storm levels on 05 Aug followed by quiet to unsettled levels on 06 Aug. Two further enhancements in solar wind speed were observed on 08 Aug and on 09-10 Aug. The first peaked around 575 km/s while the second peaked at approximately 650 km/s. However, no significant increases in total field were observed. Quiet conditions were observed on 07 Aug with quiet to unsettled levels on 08-11 Aug.
Forecast of Solar and Geomagnetic Activity 12 August – 07 September 2019
Solar activity is expected to continue at very low levels for the forecast period (12 Aug-07 Sep).
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels on12-16 Aug and again on 02-07 Sep due to recurrent CH HSS influence.
Geomagnetic field activity is expected to be reach unsettled levels on 12 Aug, 16 Aug, 26-28 Aug, and 06-07 Sep due to recurrent CH HSS activity. Unsettled to active levels are expected on 01-02 Sep with G1 (Minor) storming likely on 01 Sep also due to recurrent CH HSS activity.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx
– – – – – – – – – – – – –
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
– – – – – – – – – – – – –
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..
Weekly Propagation Summary – 2019 Aug 05 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2019 Aug 05 0339 UTC.
Highlights of Solar and Geomagnetic Activity 29 July – 04 August 2019
Solar activity was very low under a spotless solar disk. Other activity included a filament eruption observed in SDO/AIA 304 imagery beginning at 04/1640 UTC in the NW quadrant. Analysis is on-going for any potential coronal mass ejections (CMEs) as coronagraph imagery becomes available.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was normal levels during the period.
Geomagnetic field activity ranged from quiet to unsettled levels. Solar wind parameters indicated the arrival of a co-rotating interaction region (CIR) preceding a negative polarity coronal hole high speed stream (CH HSS) beginning midday on 30 Jul. Total field increased to 11 nT by 30/2024 UTC while solar wind speed increased to a maximum of 596 km/s at 01/0503 UTC. The geomagnetic field responded with quiet to unsettled periods on 30 Jul-01 Aug.
Forecast of Solar and Geomagnetic Activity 05 August – 31 August 2019
Solar activity is expected to continue at very low levels for the forecast period (05-31 Aug).
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach moderate levels on 05 Aug and 18 Aug. High levels are expected on 06-17 Aug due to CH HSS influence.
Geomagnetic field activity is expected to be reach unsettled to active levels on 05-08, 10-11, 17-18, 26-28, and 31 Aug with G1 (Minor) geomagnetic storm levels likely on 05-06 Aug due to recurrent CH HSS effects.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx
– – – – – – – – – – – – –
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
– – – – – – – – – – – – –
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..
Weekly Propagation Summary – 2019 Jul 29 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2019 Jul 29 0117 UTC.
Highlights of Solar and Geomagnetic Activity 22 – 28 July 2019
Solar activity was at very low levels with no spotted regions on 22-28 July.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels on 22-28 July.
Geomagnetic field activity reached unsettled levels on 22 July. Quiet levels were observed on 23-28 July.
Forecast of Solar and Geomagnetic Activity 29 July – 24 August 2019
Solar activity is expected to be at very low levels for 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 high levels on 02-03 and 05-17 August due to recurrent coronal hole high speed stream influences. Normal to moderate levels are expected for the remainder of the outlook period.
Geomagnetic field activity is expected to be at active levels on 01 and 05-06 August due to recurrent coronal hole high speed stream influences. Quiet to unsettled levels are expected for the remainder of the outlook period.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx
– – – – – – – – – – – – –
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
– – – – – – – – – – – – –
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..
Weekly Propagation Summary – 2019 Jul 22 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2019 Jul 22 0209 UTC.
Highlights of Solar and Geomagnetic Activity 15 – 21 July 2019
Solar activity was very low on 15-21 July. No spotted regions were observed on the visible disk.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels on 15-21 July.
Geomagnetic field activity was at quiet levels on 16-20 July. Quiet to unsettled levels were observed on 15 and 21 July.
Forecast of Solar and Geomagnetic Activity 22 July – 17 August 2019
Solar activity is expected to be very low throughout the forecast period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at moderate to high levels on 22, 27-30 July and 06-17 August. Normal to moderate levels are expected for the remainder of the forecast period.
Geomagnetic field activity is expected to be at unsettled to active levels on 05-06 August due to recurrent coronal hole high speed stream influences. Quiet to unsettled levels are expected for the remainder of the forecast period.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx
– – – – – – – – – – – – –
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
– – – – – – – – – – – – –
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..
Weekly Propagation Summary – 2019 Jul 15 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2019 Jul 15 0223 UTC.
Highlights of Solar and Geomagnetic Activity 08 – 14 July 2019
Solar activity was at very low levels throughout the reporting period. Region 2744 (S27, Lo=209, class/area=Bxo/020 on 07 Jul) decayed to played by 08 Jul. A coronal dimming was observed in SDO/AIA 193 beginning around 14/0030 UTC from near the vicinity of old Region 2744 (S27W46). A subsequent CME signature associated with the event was observed in SOHO/LASCO C2 imagery beginning at 14//0236 UTC. The slow-moving, narrow and faint signature from the SW limb was modeled and the resulting WSA-Enlil output suggested no Earth-directed component was present.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal background levels on 08-09 Jul. An increase to moderate to high levels, in response to activity from a negative polarity CH HSS, was observed on 10 Jul and persisted through 14 Jul.
Geomagnetic field activity ranged from quiet to G1 (Minor) geomagnetic storm levels. An abrupt enhancement from a possible transient was observed at 08/1829 UTC. Total field increase from 4 to 10 nT and solar wind speeds increased from 300 km/s to a brief peak of 400 km/s resulting in an isolated period of active conditions. Late on 09 Jul, the onset of a positive polarity CH HSS increased wind speeds to a peak of 663 km/s and total field to 13 nT. G1 storm conditions followed a period of sustained southward Bz with values reaching as far south as -11 nT at 09/1845 UTC. A final period of G1 storm conditions was observed early on 10 Jul as influence from the CH HSS persisted. Quiet to unsettled levels on 11 Jul transitioned to quiet through the end of the reporting period as the solar wind returned to nominal levels.
Forecast of Solar and Geomagnetic Activity 15 July – 10 August 2019
Solar activity is expected to be at very low levels over the outlook period.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to range from normal background to high levels. High levels are expected from 15-18 Jul and 06-10 Aug; moderate levels are expected on 19-21 Jul; the remainder of the outlook period is expected to be at normal background levels. All enhancements in electron flux are expected due to the anticipation of multiple, recurrent CH HSSs.
Geomagnetic field activity is expected to range from quiet to active levels. Active levels are expected on 15-16 Jul and 05-06 Aug; unsettled levels are expected on 17 Jul, 28 Jul, 04 Aug and 07 Aug; the remainder of the outlook period is expected to be at quiet levels. All increases in geomagnetic activity are due to the anticipation of multiple, recurrent CH HSSs.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx
– – – – – – – – – – – – –
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
– – – – – – – – – – – – –
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..
Weekly Propagation Summary – 2019 Jul 08 16:10 UTC
Here is this week’s space weather and geophysical report, issued 2019 Jul 08 0205 UTC.
Highlights of Solar and Geomagnetic Activity 01 – 07 July 2019
Solar activity was at very low levels throughout the reporting period. Region 2744 (S27, Lo=207 class/area=Bxo/20 on 07 Jul) only produced several low-level B-class events and appears to have a reverse polarity magnetic configuration.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal background levels.
Geomagnetic field activity transitioned from unsettled early on 01 Jul to quiet for the remainder of the reporting period. A weak enhancement in the solar wind on 01 Jul was obscured by intermittent mag data from L1.
Forecast of Solar and Geomagnetic Activity 08 July – 03 August 2019
Solar activity is expected to be at very low levels 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 reach moderate levels from 11-14 Jul due to influence from a positive polarity CH HSS. The remainder of the outlook period is expected to be at normal background levels.
Geomagnetic field activity is expected to range from quiet to active. Active levels are expected from 09-11 Jul in response to influence from an anticipated positive polarity CH HSS. Unsettled levels are likely on 28 Jul due to a SSBC. The remainder of the outlook period is expected to be at quiet levels under a nominal solar wind regime.
Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/
Live Aurora mapping is at http://aurora.sunspotwatch.com/
If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx
– – – – – – – – – – – – –
Be sure to subscribe to our space weather and propagation email group, on Groups.io
https://groups.io/g/propagation-and-space-weather
Spread the word!
– – – – – – – – – – – – –
Links of interest:
+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx
Space Weather and Ham Radio YouTube Channel News:
I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.
Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.
You can help!
Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:
https://www.patreon.com/NW7US
The YouTube channel:
https://YouTube.com/NW7US
..