{ "generated_utc": "2026-08-02T05:27:29Z", "gfs_cycle_utc": "2026-08-02T00:00:00Z", "model": { "source": "NCEP GFS 0.50 degree", "vertical_coordinate": "constant density (isopycnic)", "horizon_hours": 495.5, "output_interval_min": 30, "integration_step_s": 900, "wind_field_interval_h": 3 }, "staleness": { "fresh_seed_max_h": 24.0, "served_until_h": 336.0, "track_max_age_h": 72.0, "region_spread_deg": 60.0, "note": "A trajectory is served for 336 h after the last real fix and then the flight disappears. That matches the archive's own bridging limit: 23% of flights go quiet for over a week and are then heard again, so a shorter window drops balloons that are still flying. Past dead_reckoned flights the balloon has not been heard from since seed_time, so its present position is a prediction too -- the silent period is reconstructed from GFS analyses of weather that has already happened, which is why wind_source distinguishes analysis from forecast. Use display_as, not seed_age_h, to decide how to draw a flight: 'track' means the members still agree and a line is meaningful, 'region' means draw the member envelope instead because the nominal member is no better than any other." }, "members": { "offsets_m": [ -2000, -1500, -1000, -500, 0, 500, 1000, 1500, 2000 ], "nominal_offset_m": 0, "note": "Each member is seeded at the last observed altitude plus its offset and then conserves the density it started with. The ladder is a sensitivity fan, not a probability distribution: adjacent members diverge by roughly 1,200 km over seven days. levels_spanned reports how many GFS levels the fan actually straddles, usually 2 or 3." }, "files": { "trajectories_csv_gz": "PBA_forecast_20260802_00Z.csv.gz", "trajectories_geojson_gz": "PBA_forecast_20260802_00Z.geojson.gz" }, "counts": { "flights": 43, "members": 9, "rows": 221841 }, "flights": [ { "callsign": "AG6NS-23", "flight_id": "AG6NS-23_2026-02-07", "payload_type": "WSPR", "seed_time": "2026-08-01 23:48:40", "seed_lat": -52.97917, "seed_lon": -119.99999, "seed_alt_m": 12240.0, "seed_age_h": 5.52, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": -38.89329, "lon": 141.98327, "alt_m": 12478.1 }, "member_spread_deg": { "lat": 28.5, "lon": 15.68 }, "member_spread_now_deg": { "lat": 0.68, "lon": 1.98 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "BSS52", "flight_id": "BSS52_2025-12-25", "payload_type": "WSPR", "seed_time": "2026-07-24 17:39:48", "seed_lat": 59.97917, "seed_lon": 4.08333, "seed_alt_m": 13000.0, "seed_age_h": 203.67, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 50.57398, "lon": -65.46873, "alt_m": 13359.9 }, "member_spread_deg": { "lat": 72.85, "lon": 162.23 }, "member_spread_now_deg": { "lat": 15.61, "lon": 339.25 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "BSS53", "flight_id": "BSS53_2026-03-09", "payload_type": "WSPR", "seed_time": "2026-08-02 04:56:48", "seed_lat": 65.72917, "seed_lon": 98.875, "seed_alt_m": 12600.0, "seed_age_h": 0.39, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 05:00:00", "lat": 55.59606, "lon": -21.37805, "alt_m": 12883.4 }, "member_spread_deg": { "lat": 23.02, "lon": 135.74 }, "member_spread_now_deg": { "lat": 0.09, "lon": 0.77 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "BSS54", "flight_id": "BSS54_2026-07-09", "payload_type": "WSPR", "seed_time": "2026-08-01 18:41:48", "seed_lat": 29.27083, "seed_lon": -39.54167, "seed_alt_m": 14715.0, "seed_age_h": 10.64, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 46.27802, "lon": 84.79704, "alt_m": 14248.6 }, "member_spread_deg": { "lat": 30.96, "lon": 149.58 }, "member_spread_now_deg": { "lat": 0.15, "lon": 0.5 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "DG2GG-23", "flight_id": "DG2GG-23_2026-05-23", "payload_type": "WSPR", "seed_time": "2026-08-02 03:24:00", "seed_lat": 28.875, "seed_lon": -164.0, "seed_alt_m": 13080.0, "seed_age_h": 1.93, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 03:00:00", "lat": 40.37526, "lon": -146.7575, "alt_m": 13013.1 }, "member_spread_deg": { "lat": 5.97, "lon": 45.72 }, "member_spread_now_deg": { "lat": 0.06, "lon": 0.14 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "DG2GG-25", "flight_id": "DG2GG-25_2026-06-15", "payload_type": "WSPR", "seed_time": "2026-07-25 07:22:00", "seed_lat": 68.97917, "seed_lon": 68.16667, "seed_alt_m": 12990.0, "seed_age_h": 189.97, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 55.05898, "lon": 10.97321, "alt_m": 12948.7 }, "member_spread_deg": { "lat": 43.28, "lon": 251.78 }, "member_spread_now_deg": { "lat": 33.39, "lon": 110.71 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "DG2GG-27", "flight_id": "DG2GG-27_2026-07-04", "payload_type": "WSPR", "seed_time": "2026-08-02 03:23:00", "seed_lat": 19.25, "seed_lon": -168.58333, "seed_alt_m": 14110.0, "seed_age_h": 1.95, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 1, "nominal_end": { "valid_time": "2026-08-09 03:00:00", "lat": 35.11921, "lon": -42.18269, "alt_m": 13867.9 }, "member_spread_deg": { "lat": 55.7, "lon": 148.71 }, "member_spread_now_deg": { "lat": 0.27, "lon": 0.75 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "DG2GG-29", "flight_id": "DG2GG-29_2026-07-28", "payload_type": "WSPR", "seed_time": "2026-08-02 01:07:00", "seed_lat": 54.97917, "seed_lon": 117.875, "seed_alt_m": 13000.0, "seed_age_h": 4.22, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 00:30:00", "lat": 50.72344, "lon": -62.39074, "alt_m": 13254.4 }, "member_spread_deg": { "lat": 42.31, "lon": 290.38 }, "member_spread_now_deg": { "lat": 0.86, "lon": 1.45 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "DJ2DS-34", "flight_id": "DJ2DS-34_2026-04-22", "payload_type": "WSPR", "seed_time": "2026-07-28 14:41:00", "seed_lat": 30.70833, "seed_lon": -70.5, "seed_alt_m": 9190.0, "seed_age_h": 110.65, "float_reliable": false, "dead_reckoned": true, "levels_spanned": 4, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 13.66459, "lon": -12.02529, "alt_m": 9229.2 }, "member_spread_deg": { "lat": 51.81, "lon": 301.84 }, "member_spread_now_deg": { "lat": 35.23, "lon": 76.47 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "DL0MMZ", "flight_id": "DL0MMZ_2026-07-24", "payload_type": "OTHER", "seed_time": "2026-07-25 15:59:04", "seed_lat": 36.60802, "seed_lon": 30.46457, "seed_alt_m": 8441.0, "seed_age_h": 181.35, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 4, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 43.58219, "lon": -78.83277, "alt_m": 8555.7 }, "member_spread_deg": { "lat": 55.84, "lon": 304.02 }, "member_spread_now_deg": { "lat": 30.33, "lon": 77.48 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "DL0MZ-493", "flight_id": "DL0MZ-493_2026-07-25", "payload_type": "WSPR", "seed_time": "2026-07-29 07:36:01", "seed_lat": 64.20833, "seed_lon": 58.16667, "seed_alt_m": 12170.0, "seed_age_h": 93.73, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 44.85855, "lon": -21.91878, "alt_m": 12605.8 }, "member_spread_deg": { "lat": 49.77, "lon": 180.28 }, "member_spread_now_deg": { "lat": 21.83, "lon": 33.58 }, "display_as": "region", "display_reason": "seed_age" }, { "callsign": "DL0MZ-493e", "flight_id": "DL0MZ-493e_2026-07-25", "payload_type": "WSPR", "seed_time": "2026-07-29 07:27:02", "seed_lat": 64.15625, "seed_lon": 58.08889, "seed_alt_m": 12170.0, "seed_age_h": 93.88, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 49.73645, "lon": -37.91386, "alt_m": 12647.5 }, "member_spread_deg": { "lat": 41.67, "lon": 112.25 }, "member_spread_now_deg": { "lat": 21.63, "lon": 33.2 }, "display_as": "region", "display_reason": "seed_age" }, { "callsign": "DN3LEO-13", "flight_id": "DN3LEO-13_2026-04-12", "payload_type": "WSPR", "seed_time": "2026-08-02 04:43:00", "seed_lat": 66.8125, "seed_lon": 63.45833, "seed_alt_m": 12530.0, "seed_age_h": 0.62, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 04:15:00", "lat": 70.69408, "lon": 65.61139, "alt_m": 11642.7 }, "member_spread_deg": { "lat": 23.28, "lon": 240.2 }, "member_spread_now_deg": { "lat": 0.04, "lon": 0.12 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "DO3GU-40", "flight_id": "DO3GU-40_2026-06-19", "payload_type": "WSPR", "seed_time": "2026-07-24 12:15:47", "seed_lat": 71.20833, "seed_lon": 93.16667, "seed_alt_m": 15164.0, "seed_age_h": 209.07, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 69.14245, "lon": -89.05508, "alt_m": 15121.7 }, "member_spread_deg": { "lat": 42.02, "lon": 279.76 }, "member_spread_now_deg": { "lat": 28.35, "lon": 345.45 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "EI6BFW-18", "flight_id": "EI6BFW-18_2026-07-25", "payload_type": "WSPR", "seed_time": "2026-08-02 04:33:00", "seed_lat": 51.8125, "seed_lon": 150.79167, "seed_alt_m": 12900.0, "seed_age_h": 0.78, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 04:00:00", "lat": 64.01793, "lon": -47.02249, "alt_m": 12443.5 }, "member_spread_deg": { "lat": 38.14, "lon": 68.92 }, "member_spread_now_deg": { "lat": 0.14, "lon": 0.33 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "K0PEA-28", "flight_id": "K0PEA-28_2026-01-07", "payload_type": "WSPR", "seed_time": "2026-07-23 12:15:25", "seed_lat": 49.85411, "seed_lon": 24.91668, "seed_alt_m": 13360.0, "seed_age_h": 233.08, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 43.54332, "lon": -87.20066, "alt_m": 13871.7 }, "member_spread_deg": { "lat": 87.69, "lon": 280.31 }, "member_spread_now_deg": { "lat": 38.85, "lon": 288.89 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "K5NOT-11", "flight_id": "K5NOT-11_2026-06-20", "payload_type": "WSPR", "seed_time": "2026-08-01 15:25:37", "seed_lat": 40.99994, "seed_lon": 4.45834, "seed_alt_m": 13180.0, "seed_age_h": 13.91, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 51.31035, "lon": 176.36908, "alt_m": 13056.4 }, "member_spread_deg": { "lat": 19.33, "lon": 351.18 }, "member_spread_now_deg": { "lat": 2.31, "lon": 2.84 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "K9YO-23", "flight_id": "K9YO-23_2026-07-13", "payload_type": "WSPR", "seed_time": "2026-07-27 06:25:49", "seed_lat": 52.5833, "seed_lon": 125.16663, "seed_alt_m": 12840.0, "seed_age_h": 142.9, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 35.97569, "lon": 156.12613, "alt_m": 13142.1 }, "member_spread_deg": { "lat": 52.17, "lon": 334.98 }, "member_spread_now_deg": { "lat": 35.35, "lon": 345.34 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "KC3LBR-422-10", "flight_id": "KC3LBR-422-10_2026-01-02", "payload_type": "WSPR", "seed_time": "2026-07-19 21:57:02", "seed_lat": -26.39583, "seed_lon": -68.16667, "seed_alt_m": 14380.0, "seed_age_h": 319.38, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": -39.05817, "lon": -101.92511, "alt_m": 14288.0 }, "member_spread_deg": { "lat": 33.15, "lon": 207.05 }, "member_spread_now_deg": { "lat": 31.04, "lon": 253.27 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "KC3LBR-449", "flight_id": "KC3LBR-449_2026-07-06", "payload_type": "WSPR", "seed_time": "2026-08-02 04:57:03", "seed_lat": 64.5, "seed_lon": -126.16667, "seed_alt_m": 13210.0, "seed_age_h": 0.38, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 05:00:00", "lat": 57.22768, "lon": -11.27665, "alt_m": 13205.6 }, "member_spread_deg": { "lat": 25.48, "lon": 87.19 }, "member_spread_now_deg": { "lat": 0.21, "lon": 0.12 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "KC3LBR-485", "flight_id": "KC3LBR-485_2026-03-19", "payload_type": "WSPR", "seed_time": "2026-07-28 09:08:18", "seed_lat": 50.14583, "seed_lon": 23.375, "seed_alt_m": 12850.0, "seed_age_h": 116.2, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 72.18335, "lon": -160.7669, "alt_m": 13035.0 }, "member_spread_deg": { "lat": 32.89, "lon": 352.07 }, "member_spread_now_deg": { "lat": 24.5, "lon": 105.64 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "KC5TRB-1", "flight_id": "KC5TRB-1_2026-06-20", "payload_type": "WSPR", "seed_time": "2026-07-31 09:45:43", "seed_lat": 65.74995, "seed_lon": 26.6667, "seed_alt_m": 12780.0, "seed_age_h": 43.57, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 74.57331, "lon": 147.40315, "alt_m": 12707.1 }, "member_spread_deg": { "lat": 22.12, "lon": 353.88 }, "member_spread_now_deg": { "lat": 22.11, "lon": 13.36 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "KE8RES-8", "flight_id": "KE8RES-8_2026-06-20", "payload_type": "WSPR", "seed_time": "2026-08-02 00:16:00", "seed_lat": 51.6875, "seed_lon": -128.5, "seed_alt_m": 12100.0, "seed_age_h": 5.07, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 53.84212, "lon": -92.43235, "alt_m": 12295.9 }, "member_spread_deg": { "lat": 14.59, "lon": 87.22 }, "member_spread_now_deg": { "lat": 0.77, "lon": 0.98 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "KE9DAB-11", "flight_id": "KE9DAB-11_2026-07-29", "payload_type": "WSPR", "seed_time": "2026-08-01 19:11:00", "seed_lat": 31.0625, "seed_lon": -34.0, "seed_alt_m": 12640.0, "seed_age_h": 10.15, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 37.77048, "lon": 62.83909, "alt_m": 12269.0 }, "member_spread_deg": { "lat": 17.21, "lon": 105.98 }, "member_spread_now_deg": { "lat": 1.2, "lon": 1.21 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "KI1TEN-1", "flight_id": "KI1TEN-1_2026-07-23", "payload_type": "WSPR", "seed_time": "2026-08-01 22:55:27", "seed_lat": 23.95828, "seed_lon": -104.12496, "seed_alt_m": 12380.0, "seed_age_h": 6.41, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 5.48835, "lon": -105.50831, "alt_m": 12357.9 }, "member_spread_deg": { "lat": 16.49, "lon": 43.74 }, "member_spread_now_deg": { "lat": 1.59, "lon": 0.68 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "KI6DS-11", "flight_id": "KI6DS-11_2026-02-03", "payload_type": "WSPR", "seed_time": "2026-08-02 04:55:45", "seed_lat": 71.79161, "seed_lon": 69.91669, "seed_alt_m": 13120.0, "seed_age_h": 0.41, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 05:00:00", "lat": 69.95836, "lon": -42.68883, "alt_m": 12884.0 }, "member_spread_deg": { "lat": 31.3, "lon": 264.37 }, "member_spread_now_deg": { "lat": 0.08, "lon": 0.58 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "KO6FE-15", "flight_id": "KO6FE-15_2025-11-09", "payload_type": "WSPR", "seed_time": "2026-07-19 07:56:00", "seed_lat": 49.39583, "seed_lon": 101.95833, "seed_alt_m": 12920.0, "seed_age_h": 333.4, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 60.27016, "lon": -161.2136, "alt_m": 12961.3 }, "member_spread_deg": { "lat": 44.88, "lon": 248.61 }, "member_spread_now_deg": { "lat": 64.57, "lon": 156.93 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "N0MPM-31", "flight_id": "N0MPM-31_2026-04-16", "payload_type": "WSPR", "seed_time": "2026-07-21 23:53:19", "seed_lat": -24.02088, "seed_lon": -135.08331, "seed_alt_m": 14600.0, "seed_age_h": 269.45, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": -19.13548, "lon": -21.16784, "alt_m": 14587.4 }, "member_spread_deg": { "lat": 44.73, "lon": 167.26 }, "member_spread_now_deg": { "lat": 38.06, "lon": 346.52 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "PC4L-11", "flight_id": "PC4L-11_2026-07-16", "payload_type": "APRS", "seed_time": "2026-07-26 12:46:26", "seed_lat": 42.93908, "seed_lon": 39.39383, "seed_alt_m": 11696.0, "seed_age_h": 160.56, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 10.72182, "lon": 100.73407, "alt_m": 12176.0 }, "member_spread_deg": { "lat": 39.71, "lon": 266.62 }, "member_spread_now_deg": { "lat": 49.22, "lon": 54.34 }, "display_as": "region", "display_reason": "seed_age" }, { "callsign": "SP0LND-6", "flight_id": "SP0LND-6_2026-07-25", "payload_type": "APRS", "seed_time": "2026-07-26 13:19:17", "seed_lat": 44.85792, "seed_lon": 29.04891, "seed_alt_m": 13803.0, "seed_age_h": 160.01, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 63.15208, "lon": -111.1234, "alt_m": 13643.3 }, "member_spread_deg": { "lat": 56.91, "lon": 122.21 }, "member_spread_now_deg": { "lat": 18.63, "lon": 52.28 }, "display_as": "region", "display_reason": "seed_age" }, { "callsign": "SP2ROC-1", "flight_id": "SP2ROC-1_2026-03-14", "payload_type": "APRS", "seed_time": "2026-07-22 14:00:27", "seed_lat": 40.10083, "seed_lon": 44.614, "seed_alt_m": 14644.0, "seed_age_h": 255.33, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 32.81461, "lon": 58.86015, "alt_m": 14682.8 }, "member_spread_deg": { "lat": 68.25, "lon": 256.8 }, "member_spread_now_deg": { "lat": 50.14, "lon": 102.3 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "SP2ROC-41", "flight_id": "SP2ROC-41_2026-01-25", "payload_type": "WSPR", "seed_time": "2026-08-02 04:33:00", "seed_lat": 68.89583, "seed_lon": 58.125, "seed_alt_m": 15370.0, "seed_age_h": 0.78, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-09 04:00:00", "lat": 46.21469, "lon": -175.49803, "alt_m": 15486.8 }, "member_spread_deg": { "lat": 26.22, "lon": 323.44 }, "member_spread_now_deg": { "lat": 0.02, "lon": 0.47 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "SP6MPL-32", "flight_id": "SP6MPL-32_2026-01-23", "payload_type": "WSPR", "seed_time": "2026-07-21 03:17:00", "seed_lat": -22.31248, "seed_lon": 162.875, "seed_alt_m": 14160.0, "seed_age_h": 290.05, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": -22.18884, "lon": 48.65843, "alt_m": 14012.1 }, "member_spread_deg": { "lat": 24.26, "lon": 239.54 }, "member_spread_now_deg": { "lat": 16.83, "lon": 270.98 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "SP6MPL-34", "flight_id": "SP6MPL-34_2025-12-03", "payload_type": "WSPR", "seed_time": "2026-07-31 18:52:00", "seed_lat": 74.5625, "seed_lon": -160.0, "seed_alt_m": 12890.0, "seed_age_h": 34.47, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 52.19589, "lon": -177.54814, "alt_m": 13209.4 }, "member_spread_deg": { "lat": 20.06, "lon": 349.94 }, "member_spread_now_deg": { "lat": 9.34, "lon": 313.86 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "VE3VRO-36", "flight_id": "VE3VRO-36_2026-07-30", "payload_type": "WSPR", "seed_time": "2026-08-01 20:21:00", "seed_lat": 29.3125, "seed_lon": -56.125, "seed_alt_m": 13460.0, "seed_age_h": 8.98, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 25.91459, "lon": -53.76498, "alt_m": 13593.3 }, "member_spread_deg": { "lat": 38.56, "lon": 200.41 }, "member_spread_now_deg": { "lat": 2.07, "lon": 1.87 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "W0DLK-1", "flight_id": "W0DLK-1_2026-06-20", "payload_type": "WSPR", "seed_time": "2026-07-21 06:43:47", "seed_lat": 46.18745, "seed_lon": 121.75004, "seed_alt_m": 12630.0, "seed_age_h": 286.6, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 38.78124, "lon": -7.39978, "alt_m": 12924.2 }, "member_spread_deg": { "lat": 51.11, "lon": 273.58 }, "member_spread_now_deg": { "lat": 55.3, "lon": 192.06 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "W0RBO-12", "flight_id": "W0RBO-12_2026-05-02", "payload_type": "WSPR", "seed_time": "2026-08-01 22:25:23", "seed_lat": 43.39578, "seed_lon": -88.08331, "seed_alt_m": 13540.0, "seed_age_h": 6.91, "float_reliable": true, "dead_reckoned": false, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": 47.70734, "lon": 80.25917, "alt_m": 13335.4 }, "member_spread_deg": { "lat": 38.78, "lon": 201.57 }, "member_spread_now_deg": { "lat": 1.1, "lon": 2.84 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "W0ZC-15", "flight_id": "W0ZC-15_2026-07-10", "payload_type": "APRS", "seed_time": "2026-07-19 15:52:12", "seed_lat": 67.67675, "seed_lon": 24.87034, "seed_alt_m": 12127.0, "seed_age_h": 325.46, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 79.34928, "lon": -35.99152, "alt_m": 12383.1 }, "member_spread_deg": { "lat": 23.54, "lon": 261.01 }, "member_spread_now_deg": { "lat": 22.14, "lon": 170.74 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "WX8TOM-12", "flight_id": "WX8TOM-12_2026-07-18", "payload_type": "APRS", "seed_time": "2026-07-19 14:16:04", "seed_lat": 52.31942, "seed_lon": 14.9975, "seed_alt_m": 12988.0, "seed_age_h": 327.07, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 38.1984, "lon": -27.18039, "alt_m": 13675.2 }, "member_spread_deg": { "lat": 36.69, "lon": 335.43 }, "member_spread_now_deg": { "lat": 27.88, "lon": 294.36 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "YU9OMT-1", "flight_id": "YU9OMT-1_2026-05-24", "payload_type": "WSPR", "seed_time": "2026-07-26 12:50:00", "seed_lat": 39.60417, "seed_lon": 35.08336, "seed_alt_m": 11370.0, "seed_age_h": 160.5, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": 58.13678, "lon": -131.72114, "alt_m": 11397.2 }, "member_spread_deg": { "lat": 56.96, "lon": 302.44 }, "member_spread_now_deg": { "lat": 39.65, "lon": 347.92 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "ZS6SRC-37", "flight_id": "ZS6SRC-37_2026-07-15", "payload_type": "WSPR", "seed_time": "2026-07-31 04:34:00", "seed_lat": -23.70833, "seed_lon": 149.29167, "seed_alt_m": 12380.0, "seed_age_h": 48.77, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 3, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": -11.67249, "lon": -0.96472, "alt_m": 12669.9 }, "member_spread_deg": { "lat": 17.41, "lon": 128.34 }, "member_spread_now_deg": { "lat": 16.53, "lon": 53.64 }, "display_as": "track", "display_reason": "fresh" }, { "callsign": "ZS6SRC-84", "flight_id": "ZS6SRC-84_2026-07-12", "payload_type": "WSPR", "seed_time": "2026-07-27 15:20:00", "seed_lat": -7.75, "seed_lon": 8.375, "seed_alt_m": 13090.0, "seed_age_h": 134.0, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:45:00", "lat": -2.85851, "lon": -132.44306, "alt_m": 13103.6 }, "member_spread_deg": { "lat": 22.44, "lon": 182.97 }, "member_spread_now_deg": { "lat": 27.81, "lon": 334.24 }, "display_as": "region", "display_reason": "member_spread" }, { "callsign": "ZS6ZU-11", "flight_id": "ZS6ZU-11_2026-07-17", "payload_type": "WSPR", "seed_time": "2026-07-20 01:53:00", "seed_lat": -22.0625, "seed_lon": -151.29167, "seed_alt_m": 13360.0, "seed_age_h": 315.45, "float_reliable": true, "dead_reckoned": true, "levels_spanned": 2, "nominal_end": { "valid_time": "2026-08-08 23:30:00", "lat": -28.88262, "lon": -152.47772, "alt_m": 12864.4 }, "member_spread_deg": { "lat": 28.71, "lon": 334.38 }, "member_spread_now_deg": { "lat": 12.58, "lon": 331.05 }, "display_as": "region", "display_reason": "member_spread" } ] }