Dataset for "First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks"

# 20171103.rbn_pskreporter_wspr_data.csv
#
# This data file contains the amateur radio spot data used in the manuscript:
#   "First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks"
#     by Nathaniel A. Frissell W2NAF, Stephen R. Kaeppler AD0AE, Diego F. Sanchez KD2RLM, Gareth W. Perry KD2SAK,
#        William D. Engelke AB4EJ, Philip J. Erickson W1PJE, Anthea J. Coster, J. Michael Ruohoniemi, and Joseph B. H. Baker
#
# Observations are provided courtesy of:
#   1. The Weak Signal Propagation Reporting Network (WSPRNet, https://www.wsprnet.org/)
#        Operated by Bruce Walker W1BW
#
#   2. The Reverse Beacon Network (RBN, http://www.reversebeacon.net/)
#        Operated by Nick Sinanis F5VIH/SV3SJ, David Pascoe KM3T, Mark Glenn K7MJG, Peter Smith N4ZR, Felipe Ceglia PY1NB/CT7ANO, and Dick Williams W3OA
#
#   3. PSKReporter (https://pskreporter.info/)
#        Operated by Philip Gladstone N1DQ
#
# Explanation of Data Columns:
#   freq:       Frequency [kHz]
#   ut:         Time of Observation in Universal Time (UT)
#   source:     Observation Network (WSPRNet, RBN, or PSKReporter)
#   tx_grid:    Transmitter Maidenhead Gridsquare
#   rx_grid:    Receiver Maindenhead Gridsquare
#   tx_lat:     Transmitter Latitude (deg)
#   tx_long:    Transmitter Longitude (deg)
#   rx_lat:     Receiver Latitude (deg)
#   rx_long:    Receiver Longitude (deg)
#   dist_Km:    Ground-Level Great Circle Distance between Transmitter and Receiver (km)
#   md_lat:     Midpoint between Transmitter and Receiver Latitude (deg)
#   md_long:    Midpoint between Transmitter and Receiver Longitude (deg)
#   slt_mid:    Solar Local Time of Midpoint (hr)
#
# This datafile is a subset of the full WSPRNet/RBN/PSKReporter data, filtered with the following parameters:
#   ut min:       2017-11-03 00:00:00
#   ut max:       2017-11-03 23:59:59
#   freq min:     14000.382
#   freq max:     14280.0
#   md_lat min:   20.004737453151876
#   md_lat max:   54.99977112001497
#   md_long min:  -129.99845895196913
#   md_long max:  -60.008771378901315
#   dist_Km min:  0.0
#   dist_Km max:  19861.14355003741