Effective immediately the Echo-Link system, auto patch and anything requiring us to use the internet will not be working. The HamWan system that we used for the internet service was taken down today. We are looking into several options at this time but until an option becomes viable there will be no internet usage available at our repeater location.
Solar Report 5/19/22
May 19, 2022 by
Tad Cook, K7RA, Seattle, Washington, reports:
Solar activity was up, up, up this week, with average daily sunspot numbers increasing from 74.4 to 134.1, and average daily solar flux from 120.3 to 157.3.
Geomagnetic indicators were higher also. Average daily planetary A index went from 5 to 9, while middle latitude A index increased from 4.6 to 9.6.
Spaceweather.com reported on Wednesday that big sunspot AR3014 doubled in size, and presented this movie from NASA, showing 24 hours of activity:
Predicted solar flux is 180 on May 19 – 20, 178 on May 21 – 24, then flux values drop rapidly to 176, 170, 150, 136 and 138 on May 25 – 29, 140 on May 30 – 31, 143 on June 1 – 3, 140 and 136 on June 4 – 5, 138 on June 6 – 7, then 140 and 150 on June 8 – 9, 154 on June 10 – 12, 152 on June 13 – 14, then 150 and 148 on June 15 – 16, 140 on June 17 – 18, 145 on June 19, 142 on June 20 – 21, and 138 on June 22.
Predicted planetary A index is 14 and 12 on May 19 – 20, 8 on May 21 – 22, 5 on May 23 – 25, 15 on May 26 – 27, 8 on May 28, 5 on May 29 through June 9, 8 on June 10, 14 on June 11 – 12, 8 and 5 on June 13 – 14, 8 on June 15 – 16, 5 on June 17 – 19, 18 on June 20, and 15 on June 21 – 23.
The above predictions are from the 557th USAF Weather wing.
In Friday’s bulletin look for reports of unusual propagation on 12 meters.
Sunspot
numbers for May 12 – 18, 2022 were 112, 120, 105, 129, 173, 153, and 147, with
a mean of 134.1. 10.7 cm flux was 133, 149.5, 152.7, 153.6, 161.7, 170.8, and
179.9, with a mean of 157.3. Estimated planetary A indices were 8, 7, 7, 12,
10, 12, and 7, with a mean of 9. Middle latitude A index was 8, 7, 9, 10, 11,
15, and 7, with a mean of 9.6.
A comprehensive K7RA Solar Update is posted Fridays on the ARRL website. For
more information concerning radio propagation, visit the ARRL Technical
Information Service, read
“What the Numbers Mean…,” and check out
the Propagation Page of Carl Luetzelschwab, K9LA.
A propagation bulletin archive is available. For customizable propagation charts, visit the VOACAP Online for Ham Radio website.
Share your reports and observations.
Solar Report for May 12, 2022
May 12, 2022 by
Tad Cook, K7RA, Seattle, Washington, reports:
There was some evidence of sporadic-E propagation this week on 6 and 10 meters, which is always surprising and exciting.
Solar activity was the same as last week, at least going by the numbers.
Average daily sunspot numbers rose slightly from 68.6 to 74.4, while average daily solar flux only budged from 120 to 120.3.
Geomagnetic indicators were quieter, with average daily planetary A index shifting from 10.7 to 5, and average middle latitude numbers from 9.3 to 4.6. We listed the middle latitude A index on May 6 as 2, but that number is an estimate. At the end of that day, the last K index reading was not reported, and since the A index for the day is calculated from all the K index readings, there was not any official middle latitude A index reported and was estimated on available data.
Thursday’s outlook for solar flux is more optimistic than last week’s prediction, with no values below 100. Expected flux values are 124 on May 12 – 13; 126 on May 14 – 16; 124 on May 17 – 18; 118 on May 19 – 21; 120, 124, and 121 on May 22 – 24; 118 on May 25 – 27; 116 on May 28 – 31; 118 on June 1 – 5; 116 and 118 on June 6 -7; 120 on June 8 – 9; 122 on June 10 – 14, and 118 on June 15 – 17.
Planetary A index is predicted at 6, 8, 12, 8, 14, and 8 on May 12 – 17; 5 on May 18 -19; 12 and 8 on May 20 – 21; 5 on May 22 – 23; 18 on May 24; 15 on May 25 – 27; 8 on May 28, and 5 on May 29 through June 15. There will be a nice long quiet spell of more than 2 weeks.
Wednesday’s forecast was prepared by the US Air Force personnel.
Sunspot
numbers for May 5 through 11 were 85, 64, 66, 89, 71, 62, and 84, with a mean
of 74.4. The 10.7-centimeter flux was 119.9, 119.2, 118.1, 119.2, 117, 115.8,
and 132.9, with a mean of 120.3. Estimated planetary A indices were 4, 5, 3, 6,
8, 3, and 6, with a mean of 5. Middle latitude A index was 4, 2, 4, 7, 8, 2,
and 5, with a mean of 4.6.
A comprehensive K7RA Solar Update is posted Fridays on the ARRL website. For
more information concerning radio propagation, visit the ARRL Technical
Information Service, read
“What the Numbers Mean…,” and check out
the Propagation Page of Carl Luetzelschwab, K9LA.
A propagation bulletin archive is available. For customizable propagation charts, visit the VOACAP Online for Ham Radio website.
Share your reports and observations.
A weekly, full report is posted on ARRL News.
May 5, 2022 Solar Report
May 5, 2022 by
Tad Cook, K7RA, Seattle, Washington, reports:
Spaceweather.com reported on May 4 an M5 solar flare from sunspot
group AR3004, causing a brief shortwave radio blackout over the Middle East and Africa.
Solar activity was lower this week, even though sunspots were visible every day.
Average daily sunspot numbers dropped from 109.3 to 68.6, while average daily solar flux went from 156 to 120.
Average daily geomagnetic indices were only slightly higher, with average planetary A index changing from 9.1 to 10.7, and middle latitude A index from 8 to 9.3.
Predicted solar flux looks low for the next month, even dipping below 100 in early June.
Predicted values are 135 and 138 on May 5 – 6, 145 on May 7 – 9, then 140, 130, 120, 115 and 120 on May 10 – 14, 125 on May 15 – 18, 127 on May 19 – 20, then 130, 128, 125, and 122 on May 21 – 24, 118 on May 25 – 26, then 114 and 110 on May 27 – 28, 105 on May 29 -31, then 102 and 100 on June 1 – 2, 97 on June 3 -5, then 99, 102 and 108 on June 6 – 8.
Predicted planetary A index is 5 on May 5 – 12, then 8, 10 and 8 on May 13 – 15, 5 on May 16 – 19, then 12 and 8 on May 20 – 21, 5 on May 22 – 23, 18 on May 24, 15 on May 25 – 27, then 8, 15 and 8 on May 28 – 30, and 5 on May 31 through June 8.
These
predictions are from forecasters Housseal and Dethlefsen of the USAF 557th
Weather Wing.
Sunspot numbers for April 28 through May 4, 2022, were 118, 90, 50, 36, 69, 53,
and 64, with a mean of 68.6. 10.7 cm flux was 132.2, 123.5, 119.7, 109, 111.9,
113.8, and 130.1, with a mean of 120. Estimated planetary A indices were 14,
15, 18, 9, 6, 7, and 6, with a mean of 10.7. Middle latitude A index was 11, 10,
16, 9, 6, 7, and 6, with a mean of 9.3.
A comprehensive K7RA Solar Update is posted Fridays on the ARRL website. For more information concerning radio propagation, visit the ARRL Technical Information Service, read “What the Numbers Mean…,” and check out the Propagation Page of Carl Luetzelschwab, K9LA.
A propagation bulletin archive is available. For customizable propagation charts, visit the VOACAP Online for Ham Radio website.Share your reports and observations