Callsign:	MD21
MMSI number:	477995934
Navigational status:	At anchor (1)
Vessel class:	Law enforcement (55)
Location:	22°17.88' N 114°11.83' E - locator OL72CH31PM - show map 1.6 miles Southeast bearing 146° from Kowloon, Hong Kong [?] 2.7 miles East bearing 71° from Hong Kong, Hong Kong 82.7 miles Southeast bearing 133° from Guangzhou, Guangdong Sheng, China
Last position:	2024-10-22 22:43:29 EDT (18d 17h58m ago) 2024-10-23 10:43:29 HKT local time at Kowloon, Hong Kong [?]
Course:	81° – heading 84°
Speed:	17 MPH
Dimensions:	draught 0.0 m
Last path:	MD21>ais via vr2xvr
Positions stored:	139

callsign		distance	last heard - EST		callsign		distance	last heard - EST
FU LI518		142.1 yards 193°	2024-11-10 03:01:19		REGATTA		142.5 yards 84°	2024-11-08 07:21:38
YUEGUANGZHOUHUO0535		155.0 yards 175°	2024-11-09 21:37:57		HANYANG981		174.4 yards 175°	2024-11-10 00:04:07
UN-NAMED		188.3 yards 64°	2024-10-18 23:53:03		YONGSHIFENG999		188.4 yards 181°	2024-11-05 10:08:30
PL8		204.4 yards 110°	2024-11-10 09:48:49		SHUN TAI HENG NO.2		241.2 yards 213°	2024-11-04 04:56:06
TIANLI3838		245.4 yards 256°	2024-11-09 01:59:11		ALEXANDRA "N" OBAN		254.0 yards 179°	2024-11-06 02:27:45
		259.9 yards 142°	2024-11-08 07:45:21		TAIMIN7		283.0 yards 143°	2024-11-04 20:19:54
YUEGUANGZHOUHUO3328		288.4 yards 230°	2024-11-07 21:31:16		SHENGPING182		294.8 yards 216°	2024-11-10 08:14:26
HUI JIN QIAO 118		379.9 yards 101°	2024-11-08 18:15:04		GANGHAI333		384.0 yards 231°	2024-11-07 07:30:10
SERENDIPITY		391.6 yards 218°	2024-11-04 01:57:12		FIRST FERRY VII		393.6 yards 308°	2024-11-10 11:08:22
YUEHUASHI689		436.1 yards 239°	2024-11-08 03:18:39		HUIGANGTONG139		446.6 yards 248°	2024-11-10 09:12:26

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.