Callsign:	SENTRY
MMSI number:	338340854
IMO number:	554200
Navigational status:	Under way (engine) (0)
Vessel class:	Diving operations (34)
Destination:	CLASS B
Location:	47°21.07' N 122°24.41' W - locator CN87TI14EH - show map 4.8 miles Northwest bearing 294° from Federal Way, King County, Washington, United States [?] 6.2 miles West bearing 281° from Lakeland North, King County, Washington, United States 7.0 miles North bearing 14° from Tacoma, Pierce County, Washington, United States 17.9 miles South bearing 191° from Seattle, King County, Washington, United States
Last position:	2024-04-05 13:12:21 EDT (80d 13h29m ago) 2024-04-05 10:12:21 PDT local time at Federal Way, United States [?]
Course:	237° – heading 511°
Speed:	17 MPH
Dimensions:	length 14 m width 4 m draught 0.0 m
Last path:	SENTRY>ais via KB7RYY
Positions stored:	10124

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
SIMPLE PLEASURE		0.4 miles 223°	2024-06-23 20:36:36		SEAJAY		0.7 miles 42°	2024-06-22 19:06:41
LUCKY DOG		0.8 miles 206°	2024-06-05 15:04:44		MOI MOI		1.1 miles 218°	2024-05-31 14:19:44
RHAPSODY		1.9 miles 214°	2024-06-16 13:15:31		W7W/KG143		2.0 miles 350°	2024-06-21 21:51:00
TERN II		2.1 miles 41°	2024-06-21 18:10:23		LITTLE MINUTE		2.1 miles 209°	2024-06-14 18:52:37
SEA TIGER		2.2 miles 41°	2024-06-10 21:43:45		ENDEAVOR		2.5 miles 210°	2024-06-23 17:49:24
HOLD FAST		2.6 miles 41°	2024-06-21 13:18:42		NK9W-4		2.6 miles 123°	2024-06-25 02:39:01
WATERFORD		2.6 miles 41°	2024-06-16 11:45:24		MOONDANCE		2.6 miles 304°	2024-06-23 12:18:48
EW1647		2.7 miles 113°	2024-06-25 02:30:06		WDFW 665		2.7 miles 35°	2024-06-22 15:19:23
ARTEMIS		2.7 miles 38°	2024-06-25 02:40:45		WANDA LEE		2.7 miles 307°	2024-06-23 14:49:17
DONE TRUCKIN		2.8 miles 304°	2024-06-16 18:08:14		BLUE SKY		2.8 miles 307°	2024-06-23 19:30:56

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.