More F2 Skip Cesium Development Notes
Β Here's the query I'm using for Burr Trail
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select
Β tx_lng,
Β tx_lat,
Β rx_lng,
Β rx_lat,
Β rm_rnb_history_pres.timestamp,
Β rm_rnb_history_pres.dB,
Β rm_rnb_history_pres.Spotter,
Β haversine(tx_lat, tx_lng, rx_lat, rx_lng) as total_path,
Β gis_partial_path_lat(tx_lat, tx_lng, rx_lat, rx_lng, 200) as el_lat,
Β gis_partial_path_lng(tx_lat, tx_lng, rx_lat, rx_lng, 200) as el_lng,
Β id,
Β strftime('%Y%m%d', timestamp) as date,
Β strftime('%H%M', timestamp) as time,
Β 'US-4399' as park,
Β 'KD0FNR' as call,
Β 1770.829467773438 as elev_tx
from
Β rm_rnb_history_pres
where
Β dB > 100
Β and timestamp > '2024-05-27'
Β and timestamp < '2024-05-28'
order by
Β rm_rnb_history_pres.timestamp desc
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At some point I'll add an ionosonde field using this map for each QSO. For the Boulder, CO ionosonde, the query will look like
=========================================================
select
Β tx_lng,
Β tx_lat,
Β rx_lng,
Β rx_lat,
Β rm_rnb_history_pres.timestamp,
Β rm_rnb_history_pres.dB,
Β rm_rnb_history_pres.Spotter,
Β haversine(tx_lat, tx_lng, rx_lat, rx_lng) as total_path,
Β gis_partial_path_lat(tx_lat, tx_lng, rx_lat, rx_lng, 200) as el_lat,
Β gis_partial_path_lng(tx_lat, tx_lng, rx_lat, rx_lng, 200) as el_lng,
Β id,
Β strftime('%Y%m%d', timestamp) as date,
Β strftime('%H%M', timestamp) as time,
Β 'US-4399' as park,
Β 'KD0FNR' as call,
Β 'BC840' as ionosonde,
Β 1770.829467773438 as elev_tx
from
Β rm_rnb_history_pres
where
Β dB > 100
Β and timestamp > '2024-05-27'
Β and timestamp < '2024-05-28'
order by
Β rm_rnb_history_pres.timestamp desc
limit 1
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The extra ionosonde field works!!!Β
References
Ionosonde Data
Reinisch, B. W., and I. A. Galkin, Global ionospheric radio observatory (GIRO), Earth, Planets, and Space, 63, 377-381, doi:10.5047/eps.2011.03.001, 2011.