Comment:	.WD 31
Location:	38°48.58' N 77°17.74' W - locator FM18IT44MH - show map 11.5 km Southeast bearing 128° from Greenbriar, Fairfax County, Virginia, United States [?] 12.0 km East bearing 106° from Centreville, Fairfax County, Virginia, United States 24.4 km Southwest bearing 247° from Washington, D. C., Washington, D.C., United States 79.6 km Southwest bearing 228° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2026-02-08 12:15:10 UTC (4m11s ago) 2026-02-08 07:15:10 EST local time at Greenbriar, United States [?]
Last WX report:	2026-02-08 12:15:10 UTC (4m11s ago) – show weather charts -11.1 °C 59% 1026.3 mbar 1.3 m/s Northwest
Device:	Unknown: Unknown
Last path:	CW4120>APRS via TCPXX*,qAX,CWOP-4
Positions stored:	3

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.