March 12, 2004 Michael.P.Husler@noaa.gov SPACE ENVIRONMENT CENTER (SEC), NOAA, Dept of Commerce DAILY and MONTHLY IONOSPHERIC DATA LISTS RECENT STATION ADDITIONS: See end of this file for earlier announcements. Aug, 2004 -- Kwajalein Island to be added. Jul, 2004 -- Jicamarca, Peru to be added. Jun, 2004 -- Port Stanley, Chilton UK, and Lycksele Sweden lists to be added. Mar, 2004 -- Boulder Colorado (see http://ionosphere.boulder.noaa.gov), Mawson Antarctica, Bear Lake Utah, and Tromso Norway data lists added. Dixon, Warsaw, Wakkanai, Okinawa, Kokobunji data lists have "No data available." for the time being. Feb 9, 2004 -- Grahamstown, Louisvale, and Madimbo data lists added from South Africa. ================================================================== Ionospheric Data Lists Description (see sample list below): o Ionospheric Data Lists are ascii files with one station per file. SEC currently receives data from 52 stations. New stations are added as resources permit. o Data is received at SEC in two formats: IUWDS and SAO + IUWDS format is an 5-digit coded text format. For a format description, visit http://www.ises-spaceweather.org/codebook/codebook/ufofs__etc_.html See sections on UFOFH (foF2) and UFESH (foEs). Seven stations report in IUWDS format: Ashkhabad, Beijing, Guangzhou, Magadan, Manzhouli, Port Moresby, and Salekhard - Only foF2 and foEs parameters are reported. - Stations report hourly values once a day. - If no data were received, hourly values are set to -1. - Data lists for IUWDS stations are updated hourly at 30 minutes past the hour. - The station description line in each file includes the station name, country, geographic location in parentheses and IUWDS, e.g. Ashkhabad, Turkmenistan (N37E58) IUWDS + SAO (Standard Archiving Output) files contain the scaled data for 1 ionogram. For a detailed description, visit http://ulcar.uml.edu/framesd.htm . - The Scaled Ionospheric Characteristics Elements within the SAO records contain up to 49 parameters. SEC displays 15 of these: foF2, hmF2, M(D), D, h'F, yF2, fMUF, h', fxI, foF1, foE, hmE, foEs, fbEs, ITEC. For details on these parameters, go to http://ulcar.uml.edu/%7Eiag/SAO-4.htm#TABLE6 . - Stations report in near real-time and usually provide 5-, 15-, 30-, or hour values. These cadences, however, can vary. - If no data are received during the period, the first data line contains "No data available." - Data list files for SAO stations are updated twice an hour at 25 and 55 minutes past the hour. - The station description line in each file includes the station name, geographic location, operator*-Digisonde model or Dynasonde**, e.g. Ascension Island S07E014 AFRL-DPS-4 o SEC provides both Daily and Monthly Ionospheric Data lists for each station + Daily files - are in the directory /pub/lists/iono_day/ - contain up to two days of data beginning at 0000 UTC on the previous day and ending with latest value for the current day. - are named as "Station_iono.txt", e.g., Learmonth_iono.txt - A compressed binary file, /iono_day/iono_day.tar.gz, contains all the daily files and is created at 25 and 55 minutes past the hour. + Monthly files - are in directory /pub/lists/iono_month/ - contain up to one month of data - are updated daily at 0025 and 0055 UTC - The current month and past 2 months are kept on-line. - are named with the year and month prepended, e.g. 200212_Learmonth_iono.txt * Operators AFRL - Air Force Research Laboratory http://www.plh.af.mil IAP - Leibniz - Institute of Atmospheric Physics University of Rostok, Germany http://www.ionosonde.iap-kborn.de/indexeng.htm IPS - Ionospheric Prediction Service Sydney, Australia http://www.ips.gov.au/ ING - Istituto Nazionale de Geofiscia Rome, Italy http://www.ingrm.it/ NOA - National Obervatory of Athens Athens, Greece http://www.iono.noa.gr/ UMLCAR - University of Massachusetts, Lowell, Center of Atmospheric Research Lowell, Massachusetts, USA http://ulcar.uml.edu Rhodes University - Grahamstown, South Africa http://www.ru.ac.za/ Utah State University - Logan, Utah, USA http://www.sdl.usu.edu/capabilities/science/bearLake/Dynasonde/Dynasonde EISCAT - European Incoherent SCATter Tromso, Norway http://www.eiscat.uit.no/dynasond.html IRF - Swedish Institute of Space Physics Kiruna, Sweden http://www.irf.se ** The Digisonde models can be found at http://ulcar.uml.edu/Stationlist.html#models The Dynasonde can be explained at http://www.ngdc.noaa.gov/stp/IONO/Dynasonde/ ============= Other Online Ionospheric Sites =================== For an "Introduction to the Ionosphere" see http://www.ngdc.noaa.gov/stp/IONO/ionointro.html The National Geophysical Data Center for Solar Terrestrial Physics archives Ionospheric data and data plots. They have more stations and additional parameters. Follow the "Ionosphere" link or use the interactive SPIDR system. http://www.ngdc.noaa.gov/stp/ The High frequency Active Auroral Research Program (HAARP) has real-time, and archived, Ionospheric and TEC data. http://www.haarp.alaska.edu/haarp/data.fcgi ========================================================================== See http://sec.noaa.gov/Data/ for tables of all online data at SEC, including links to non-SEC sources for older data. Please send comments and suggestions to the Space Environment Center at SEC.webmaster@noaa.gov ========================================================================= ============ Sample DAILY Ionospheric Data List File =============== :Product: Dyess_iono.txt :Issued: 2004 Mar 16 1525 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center. # Please send comments and suggestions to sec.webmaster@noaa.gov # # Units for foF2, MUF(D), foEs, foE, fMUF, & fbEs = MHz # Units for yF2, D, hmE, h'F & hmF2 = km # Units for TEC = 10^16 el/m^2 # Missing data: -1.0,-1,-1.00 # # Real-Time Ionosonde Data # Dyess N32E260 USAF-DISS # # UT Date Time # YR MO DA HHMM foF2 hmF2 M(D) D h'F yF2 fMUF h' fxI foF1 foE hmE foEs fbEs ITEC #------------------------------------------------------------------------------------------- 2004 03 15 0000 9.0 -1 2.79 3000 191 114 8.8 455 10.1 -1.0 -1.0 -1 -1.0 -1.0 24.6 2004 03 15 0015 7.2 -1 3.09 3000 220 126 6.1 300 8.7 -1.0 -1.0 -1 2.3 -1.0 18.3 2004 03 15 0030 8.9 -1 2.62 3000 211 157 6.2 290 9.5 -1.0 1.6 95 2.4 -1.0 34.6 2004 03 15 0045 8.3 -1 3.15 3000 211 78 7.9 355 9.1 -1.0 -1.0 -1 -1.0 -1.0 14.9 2004 03 15 0100 10.8 -1 2.23 3000 208 -1 10.6 650 11.5 -1.0 -1.0 -1 2.9 -1.0 -1.0 2004 03 15 0115 5.1 -1 3.35 3000 200 64 4.5 280 6.0 -1.0 -1.0 -1 -1.0 -1.0 4.5 2004 03 15 0130 4.6 -1 3.08 3000 200 74 3.7 275 5.4 -1.0 -1.0 -1 -1.0 -1.0 3.9 2004 03 15 0145 4.3 -1 2.91 3000 210 139 3.5 310 5.1 -1.0 -1.0 -1 -1.0 -1.0 6.4 2004 03 15 0200 4.0 -1 2.95 3000 214 161 3.2 295 4.8 -1.0 -1.0 -1 2.0 -1.0 6.4 2004 03 15 0215 5.7 -1 2.37 3000 236 143 5.3 545 6.9 -1.0 -1.0 -1 -1.0 -1.0 11.4 2004 03 15 0230 3.8 -1 2.82 3000 210 98 3.5 405 8.2 -1.0 -1.0 -1 -1.0 -1.0 3.8 2004 03 15 0245 6.8 -1 2.24 3000 255 142 6.8 665 7.6 -1.0 -1.0 -1 -1.0 -1.0 16.5 2004 03 15 0300 6.8 -1 2.21 3000 255 -1 6.8 680 7.5 -1.0 -1.0 -1 -1.0 -1.0 -1.0 2004 03 15 0315 4.1 -1 2.61 3000 262 124 3.2 350 4.9 -1.0 -1.0 -1 -1.0 -1.0 5.1 2004 03 15 0330 3.8 -1 2.85 3000 265 97 3.4 380 4.6 -1.0 -1.0 -1 1.8 -1.0 3.9 2004 03 15 0345 4.1 -1 2.67 3000 265 117 3.2 335 5.4 -1.0 -1.0 -1 -1.0 -1.0 5.2 2004 03 15 0400 7.0 -1 2.46 3000 277 110 7.0 575 7.7 -1.0 -1.0 -1 -1.0 -1.0 13.8 2004 03 15 0415 4.0 -1 2.81 3000 275 106 3.8 430 4.8 -1.0 -1.0 -1 -1.0 -1.0 4.6 2004 03 15 0430 6.0 -1 2.24 3000 275 126 6.0 665 6.7 -1.0 -1.0 -1 -1.0 -1.0 11.9 2004 03 15 0445 4.9 -1 2.51 3000 282 130 4.9 560 6.1 -1.0 -1.0 -1 -1.0 -1.0 8.0 2004 03 15 0500 4.5 -1 2.56 3000 275 129 3.9 430 5.2 -1.0 -1.0 -1 -1.0 -1.0 6.9 2004 03 15 0515 4.2 -1 2.74 3000 270 90 4.2 485 5.1 -1.0 -1.0 -1 -1.0 -1.0 4.3 2004 03 15 0530 4.5 -1 2.43 3000 270 170 3.6 410 5.3 -1.0 -1.0 -1 -1.0 -1.0 9.1 2004 03 15 0545 5.4 -1 2.42 3000 296 129 5.4 590 6.6 -1.0 -1.0 -1 -1.0 -1.0 9.5 2004 03 15 0600 4.2 -1 2.61 3000 265 97 4.0 485 5.5 -1.0 -1.0 -1 -1.0 -1.0 4.6 2004 03 15 0615 4.1 -1 2.71 3000 292 82 4.0 475 4.9 -1.0 -1.0 -1 1.4 -1.0 3.7 2004 03 15 0630 5.3 -1 2.24 3000 291 135 5.2 645 6.0 -1.0 -1.0 -1 -1.0 -1.0 9.3 2004 03 15 0645 5.3 -1 2.52 3000 281 128 5.3 555 6.5 -1.0 -1.0 -1 -1.0 -1.0 9.1 2004 03 15 0700 4.6 -1 2.67 3000 270 136 3.8 370 5.4 -1.0 -1.0 -1 -1.0 -1.0 7.8 2004 03 15 0715 4.6 -1 2.68 3000 265 128 4.4 470 5.4 -1.0 -1.0 -1 -1.0 -1.0 7.4 2004 03 15 0730 4.3 -1 2.89 3000 260 92 4.0 395 5.2 -1.0 -1.0 -1 2.4 -1.0 4.6 2004 03 15 0745 4.5 -1 2.70 3000 235 131 3.7 360 5.5 -1.0 -1.0 -1 1.8 -1.0 7.1 2004 03 15 0800 4.5 -1 2.85 3000 255 89 4.5 455 5.3 -1.0 -1.0 -1 -1.0 -1.0 4.8 2004 03 15 0815 6.5 -1 2.44 3000 236 113 6.1 530 7.4 -1.0 -1.0 -1 2.8 -1.0 12.5 2004 03 15 0830 6.4 -1 2.56 3000 236 128 5.9 475 7.2 -1.0 -1.0 -1 -1.0 -1.0 13.6 2004 03 15 0845 5.1 -1 2.85 3000 225 99 4.1 315 6.9 -1.0 -1.0 -1 -1.0 -1.0 6.3 2004 03 15 0900 4.2 -1 3.18 3000 215 105 3.7 305 5.1 -1.0 -1.0 -1 1.8 -1.0 4.7 2004 03 15 0915 5.1 -1 2.58 3000 221 103 5.0 520 5.8 -1.0 -1.0 -1 -1.0 -1.0 6.9 2004 03 15 0930 4.2 -1 2.56 3000 225 194 3.2 345 4.9 -1.0 -1.0 -1 -1.0 -1.0 8.6 2004 03 15 0945 3.8 -1 2.92 3000 240 74 3.7 420 4.5 -1.0 -1.0 -1 2.8 -1.0 2.8 2004 03 15 1000 5.9 -1 2.43 3000 235 134 5.5 525 6.6 -1.0 -1.0 -1 -1.0 -1.0 12.1 2004 03 15 1015 3.3 -1 3.12 3000 207 79 2.9 315 4.2 -1.0 -1.0 -1 -1.0 -1.0 2.3 2004 03 15 1030 5.8 -1 2.39 3000 242 136 5.3 525 6.6 -1.0 -1.0 -1 -1.0 -1.0 12.1 2004 03 15 1045 3.2 -1 2.78 3000 235 94 2.8 380 3.9 -1.0 -1.0 -1 -1.0 -1.0 2.4 2004 03 15 1100 3.1 -1 2.83 3000 272 96 2.8 390 4.0 -1.0 -1.0 -1 -1.0 -1.0 2.5 2004 03 15 1115 4.9 -1 2.30 3000 272 128 4.9 640 5.6 -1.0 -1.0 -1 -1.0 -1.0 8.0 2004 03 15 1130 5.6 -1 2.27 3000 262 144 5.3 600 6.6 -1.0 -1.0 -1 -1.0 -1.0 11.7 2004 03 15 1145 3.9 -1 2.85 3000 197 95 3.9 455 4.6 -1.0 -1.0 -1 -1.0 -1.0 3.8 2004 03 15 1200 3.1 -1 3.18 3000 235 59 3.0 360 4.0 -1.0 -1.0 -1 2.9 -1.0 1.6 2004 03 15 1215 6.6 -1 2.55 3000 251 118 5.9 455 7.7 -1.0 -1.0 -1 -1.0 -1.0 14.5 2004 03 15 1230 6.7 -1 2.33 3000 242 136 6.5 600 7.9 -1.0 -1.0 -1 -1.0 -1.0 16.7 2004 03 15 1245 7.2 -1 2.44 3000 237 130 6.9 545 8.0 -1.0 -1.0 -1 3.6 -1.0 18.7 2004 03 15 1300 6.2 -1 3.00 3000 231 92 5.8 375 7.3 -1.0 1.3 125 2.9 -1.0 9.9 2004 03 15 1315 7.2 -1 2.70 3000 226 120 7.0 475 8.0 -1.0 1.6 90 2.0 -1.0 17.1 2004 03 15 1330 8.9 -1 2.35 3000 227 159 8.5 575 9.6 -1.0 2.1 95 2.4 -1.0 35.2 2004 03 15 1345 5.8 -1 3.20 3000 215 161 4.9 290 8.3 -1.0 2.0 105 2.4 -1.0 14.5 2004 03 15 1400 9.1 -1 2.42 3000 212 143 8.7 560 9.7 -1.0 2.1 85 2.8 -1.0 33.5 2004 03 15 1415 9.4 -1 2.59 3000 212 118 9.0 505 10.2 -1.0 2.6 85 2.6 -1.0 31.3 2004 03 15 1430 8.1 261 2.67 3000 195 127 5.7 280 8.8 4.0 2.6 90 2.6 -1.0 26.1 2004 03 15 1445 7.4 260 3.19 3000 195 70 7.3 370 8.3 4.2 2.8 95 2.8 -1.0 13.8 2004 03 15 1500 7.1 245 3.31 3000 200 57 7.1 355 7.8 4.1 2.8 85 2.8 -1.0 10.3 2004 03 15 1515 10.4 262 2.25 3000 205 139 10.4 660 11.2 4.3 3.0 95 3.0 -1.0 53.6 2004 03 15 1530 10.4 293 2.68 3000 195 78 10.3 505 11.0 4.5 2.3 90 3.1 -1.0 32.0 2004 03 15 1545 10.2 272 2.93 3000 175 76 10.2 435 11.0 4.3 3.0 80 3.6 -1.0 27.4 2004 03 15 1600 11.6 257 2.70 3000 170 105 11.3 485 12.5 4.4 3.0 90 3.1 -1.0 44.6 2004 03 15 1615 7.8 250 3.49 3000 177 77 7.1 275 8.6 4.5 3.1 90 4.0 -1.0 15.2 2004 03 15 1630 10.1 262 2.78 3000 180 93 10.1 475 10.9 4.6 3.1 85 4.2 -1.0 33.9 2004 03 15 1645 12.6 253 3.08 3000 185 67 12.4 395 13.4 4.6 3.2 85 3.2 -1.0 32.6 2004 03 15 1700 9.9 257 3.50 3000 212 35 9.5 300 10.7 4.7 3.1 85 3.1 -1.0 16.2 2004 03 15 1715 11.4 277 3.15 3000 192 49 11.2 375 12.1 5.0 3.1 85 3.1 -1.0 28.9 2004 03 15 1730 8.1 280 3.40 3000 185 55 7.6 310 8.9 4.7 3.2 85 4.1 -1.0 14.4 2004 03 15 1745 11.4 272 2.66 3000 180 101 11.4 510 12.1 4.7 3.3 85 3.5 -1.0 44.3 2004 03 15 1800 9.7 276 3.11 3000 172 68 9.7 395 10.4 4.8 3.4 85 4.7 -1.0 24.7 2004 03 15 1815 8.4 280 3.35 3000 187 100 7.7 305 9.2 4.9 3.5 85 3.8 -1.0 22.6 2004 03 15 1830 8.2 275 3.03 3000 205 90 7.5 355 9.3 4.8 3.5 90 4.8 -1.0 21.0 2004 03 15 1845 13.9 298 2.30 3000 185 133 13.7 625 14.6 5.0 3.5 85 4.1 -1.0 84.1 2004 03 15 1900 11.9 282 2.49 3000 185 125 11.8 565 12.6 5.0 3.4 80 3.9 -1.0 56.8 2004 03 15 1915 9.1 270 3.06 3000 190 91 8.0 325 9.8 4.8 3.5 85 4.1 -1.0 24.1 2004 03 15 1930 11.6 277 2.48 3000 190 129 11.6 570 12.4 4.8 3.5 80 3.8 -1.0 55.6 2004 03 15 1945 10.4 281 2.62 3000 195 123 8.1 345 11.2 5.0 3.5 80 3.9 -1.0 41.7 2004 03 15 2000 11.9 277 2.44 3000 197 136 11.8 585 12.6 4.8 3.4 90 3.6 -1.0 59.4 2004 03 15 2015 13.4 273 2.33 3000 195 139 13.3 625 14.0 4.8 3.1 80 4.6 -1.0 77.9 2004 03 15 2030 9.2 275 3.04 3000 185 77 8.1 330 10.8 4.8 3.4 95 4.3 -1.0 21.9 2004 03 15 2045 8.9 270 3.14 3000 200 92 8.0 330 9.7 4.7 3.2 90 4.3 -1.0 23.3 2004 03 15 2100 13.4 272 2.27 3000 205 148 13.4 650 14.1 4.7 3.1 90 3.1 -1.0 83.0 2004 03 15 2115 9.1 270 3.05 3000 205 97 7.6 305 9.9 4.7 3.1 85 3.7 -1.0 24.7 2004 03 15 2130 8.7 265 3.15 3000 205 91 8.0 335 9.4 4.6 3.1 85 3.2 -1.0 22.0 2004 03 15 2145 8.9 241 3.62 3000 207 75 7.7 240 9.6 4.5 3.1 90 4.0 -1.0 18.8 2004 03 15 2200 9.1 251 3.30 3000 215 76 7.6 260 9.9 4.5 3.0 85 4.1 -1.0 19.7 2004 03 15 2215 8.6 250 3.32 3000 200 78 7.3 265 9.3 4.3 2.9 95 2.9 -1.0 18.2 2004 03 15 2230 9.1 -1 3.02 3000 215 83 9.0 415 9.7 -1.0 2.7 95 2.8 -1.0 20.0 2004 03 15 2245 8.6 255 3.20 3000 215 62 8.5 375 9.3 4.2 2.7 100 3.0 -1.0 15.2 2004 03 15 2300 8.9 -1 3.50 3000 216 130 7.8 255 10.4 -1.0 2.1 85 2.6 -1.0 28.9 2004 03 15 2315 8.4 -1 3.30 3000 225 81 7.6 300 9.4 -1.0 2.4 100 2.6 -1.0 17.3 2004 03 15 2330 8.6 -1 3.24 3000 230 75 8.5 360 9.3 -1.0 2.1 105 2.3 -1.0 16.2 2004 03 15 2345 8.8 -1 3.29 3000 166 111 7.4 265 10.3 -1.0 2.1 95 2.2 -1.0 24.1 2004 03 16 0000 7.6 -1 3.45 3000 205 66 6.9 285 8.3 -1.0 2.1 95 2.3 -1.0 11.1 2004 03 16 0015 11.4 -1 2.39 3000 222 168 10.1 505 12.0 -1.0 1.9 130 2.3 -1.0 56.2 2004 03 16 0030 9.9 -1 2.79 3000 221 114 9.3 425 10.7 -1.0 1.6 100 1.8 -1.0 30.0 2004 03 16 0045 7.2 -1 3.36 3000 215 64 6.7 305 8.4 -1.0 -1.0 -1 2.5 -1.0 9.5 2004 03 16 0100 7.2 -1 3.50 3000 215 53 6.9 300 8.0 -1.0 -1.0 -1 6.2 -1.0 7.8 2004 03 16 0115 7.0 -1 3.26 3000 190 78 6.2 295 7.9 -1.0 -1.0 -1 2.5 -1.0 10.6 2004 03 16 0130 7.6 -1 3.16 3000 206 69 7.6 385 8.4 -1.0 -1.0 -1 3.1 -1.0 10.2 2004 03 16 0145 6.6 -1 3.18 3000 205 78 6.5 370 7.3 -1.0 -1.0 -1 -1.0 -1.0 9.2 2004 03 16 0200 5.9 -1 3.49 3000 205 92 5.8 315 6.7 -1.0 -1.0 -1 -1.0 -1.0 8.0 2004 03 16 0215 6.2 -1 3.34 3000 206 59 6.1 340 7.0 -1.0 -1.0 -1 -1.0 -1.0 5.8 2004 03 16 0230 7.1 -1 2.61 3000 207 96 7.1 525 7.9 -1.0 -1.0 -1 -1.0 -1.0 12.6 2004 03 16 0245 4.5 -1 3.02 3000 210 123 3.9 325 5.3 -1.0 -1.0 -1 -1.0 -1.0 6.3 2004 03 16 0300 7.7 -1 2.25 3000 235 -1 7.7 660 8.4 -1.0 -1.0 -1 -1.0 -1.0 -1.0 2004 03 16 0315 4.7 -1 2.82 3000 245 96 4.2 385 5.6 -1.0 -1.0 -1 -1.0 -1.0 5.7 2004 03 16 0330 6.8 -1 2.69 3000 207 101 6.8 500 7.7 -1.0 -1.0 -1 2.5 -1.0 11.9 2004 03 16 0345 4.9 -1 2.87 3000 245 92 4.9 450 5.7 -1.0 -1.0 -1 2.5 -1.0 5.9 2004 03 16 0400 4.9 -1 3.02 3000 247 68 4.9 415 5.7 -1.0 -1.0 -1 -1.0 -1.0 4.3 2004 03 16 0415 7.0 -1 2.50 3000 245 134 6.3 475 7.8 -1.0 -1.0 -1 -1.0 -1.0 17.1 2004 03 16 0430 7.1 -1 2.31 3000 236 118 6.7 580 7.8 -1.0 -1.0 -1 2.2 -1.0 15.6 2004 03 16 0445 4.4 -1 3.38 3000 232 53 4.3 330 5.4 -1.0 -1.0 -1 1.7 -1.0 2.8 2004 03 16 0500 5.3 -1 2.91 3000 230 78 5.3 440 6.1 -1.0 -1.0 -1 -1.0 -1.0 5.3 2004 03 16 0515 5.6 -1 2.71 3000 235 92 5.6 495 7.0 -1.0 -1.0 -1 -1.0 -1.0 7.0 2004 03 16 0530 4.4 -1 3.01 3000 225 87 3.7 310 6.1 -1.0 -1.0 -1 -1.0 -1.0 4.6 2004 03 16 0545 4.1 -1 3.15 3000 205 123 3.9 355 4.9 -1.0 -1.0 -1 -1.0 -1.0 5.2 2004 03 16 0600 4.0 -1 2.97 3000 235 88 3.5 340 4.8 -1.0 -1.0 -1 -1.0 -1.0 3.8 2004 03 16 0615 3.9 -1 2.91 3000 252 119 3.6 385 4.6 -1.0 -1.0 -1 3.3 -1.0 4.6 2004 03 16 0630 3.8 -1 2.99 3000 255 84 3.4 350 4.8 -1.0 -1.0 -1 -1.0 -1.0 3.3 2004 03 16 0645 5.8 -1 2.87 3000 257 73 5.8 450 7.0 -1.0 -1.0 -1 2.0 -1.0 6.3 2004 03 16 0700 4.0 -1 3.23 3000 215 57 4.0 370 6.0 -1.0 -1.0 -1 -1.0 -1.0 2.4 2004 03 16 0715 6.8 -1 2.24 3000 257 138 6.7 650 7.6 -1.0 -1.0 -1 -1.0 -1.0 15.9 2004 03 16 0730 4.8 -1 2.44 3000 245 109 4.8 585 5.7 -1.0 -1.0 -1 -1.0 -1.0 6.6 2004 03 16 0745 7.0 -1 2.28 3000 252 143 6.5 580 7.7 -1.0 -1.0 -1 -1.0 -1.0 18.2 2004 03 16 0800 4.9 -1 2.64 3000 252 118 4.5 450 5.9 -1.0 -1.0 -1 -1.0 -1.0 7.4 2004 03 16 0815 6.6 -1 2.24 3000 253 149 6.2 605 7.5 -1.0 -1.0 -1 -1.0 -1.0 16.7 2004 03 16 0830 5.4 -1 2.73 3000 251 97 5.3 475 6.4 -1.0 -1.0 -1 -1.0 -1.0 7.3 2004 03 16 0845 6.3 -1 2.33 3000 257 137 5.8 550 7.0 -1.0 -1.0 -1 -1.0 -1.0 14.0 2004 03 16 0900 5.0 -1 2.93 3000 260 70 5.0 435 5.8 -1.0 -1.0 -1 -1.0 -1.0 4.5 2004 03 16 0915 5.7 -1 2.44 3000 247 109 5.7 585 6.4 -1.0 -1.0 -1 -1.0 -1.0 9.3 2004 03 16 0930 5.4 -1 4.68 3000 167 -1 5.3 185 6.2 -1.0 -1.0 -1 -1.0 -1.0 -1.0 2004 03 16 0945 5.7 -1 2.58 3000 266 108 5.6 520 6.5 -1.0 -1.0 -1 -1.0 -1.0 8.9 2004 03 16 1000 4.8 -1 2.69 3000 266 92 4.8 500 5.6 -1.0 -1.0 -1 2.2 -1.0 5.2 2004 03 16 1015 5.6 -1 2.50 3000 257 134 5.4 530 6.5 -1.0 -1.0 -1 -1.0 -1.0 10.8 2004 03 16 1030 4.5 -1 2.89 3000 245 97 4.4 430 5.2 -1.0 -1.0 -1 -1.0 -1.0 5.2 2004 03 16 1045 4.6 -1 2.85 3000 240 106 4.4 425 5.3 -1.0 -1.0 -1 -1.0 -1.0 5.9 2004 03 16 1100 4.9 -1 2.96 3000 235 82 4.8 415 5.7 -1.0 -1.0 -1 -1.0 -1.0 5.1 2004 03 16 1115 3.8 -1 3.06 3000 240 84 3.4 335 4.8 -1.0 -1.0 -1 2.8 -1.0 3.3 2004 03 16 1130 3.9 -1 3.04 3000 240 101 3.4 325 4.7 -1.0 -1.0 -1 -1.0 -1.0 4.2 2004 03 16 1145 4.8 -1 2.38 3000 240 124 3.4 345 5.6 -1.0 -1.0 -1 -1.0 -1.0 7.4 2004 03 16 1200 6.3 -1 2.59 3000 246 129 5.4 415 8.1 -1.0 -1.0 -1 -1.0 -1.0 14.0 2004 03 16 1215 5.9 -1 2.21 3000 236 -1 5.9 680 6.7 -1.0 -1.0 -1 -1.0 -1.0 -1.0 2004 03 16 1230 4.4 -1 2.91 3000 240 99 3.9 360 5.5 -1.0 -1.0 -1 -1.0 -1.0 9.4 2004 03 16 1245 7.2 -1 2.67 3000 227 134 6.7 450 8.3 -1.0 -1.0 -1 -1.0 -1.0 19.2 2004 03 16 1300 7.5 -1 2.51 3000 222 160 4.8 265 8.3 -1.0 1.7 100 2.8 -1.0 24.3 2004 03 16 1315 8.2 -1 2.95 3000 216 94 8.2 430 8.9 -1.0 -1.0 -1 -1.0 -1.0 17.3 2004 03 16 1330 8.6 -1 2.71 3000 186 122 8.5 485 9.4 -1.0 2.0 130 2.1 -1.0 24.2 2004 03 16 1345 6.9 -1 3.23 3000 215 139 5.7 265 8.5 -1.0 2.2 95 2.2 -1.0 18.1 2004 03 16 1400 6.7 -1 3.46 3000 210 76 5.9 270 7.5 -1.0 2.2 90 2.3 -1.0 10.2 2004 03 16 1415 6.7 -1 3.48 3000 205 73 6.0 275 7.6 -1.0 2.6 95 2.6 -1.0 10.0 2004 03 16 1430 7.9 -1 3.05 3000 206 107 7.7 390 8.6 -1.0 2.7 85 2.7 -1.0 19.6 2004 03 16 1445 7.6 -1 3.45 3000 210 84 7.4 315 8.3 -1.0 2.8 85 4.1 -1.0 15.1 2004 03 16 1519 7.6 245 3.52 3000 200 69 6.9 270 8.3 4.4 2.7 80 3.2 -1.0 13.0 ============================================================================================= ANNOUNCEMENTS: Sep 9, 2003 -- Millstone Hill, Mass. and Ramey, Puerto Rico data lists added Feb 27, 2002 -- A Time Empirical Ionospheric Correction Model, called STORM, is online at http://www.sec.noaa.gov/storm/ Nov 14, 2002 -- Dyess Ionosonde was turned off on Nov 4, 2002. Jan 02, 2002 -- Dyess Ionosonde data lists tentatively active.