Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS object W2840047 - show graphs
Source callsign: PY1AU-6
Comment: Clb=-6.5m/s t=0.1C h=100.0% p=675.2hPa 405.001 MHz Type=RS41-SGP Vaisala http://sondehub.org/W2840047 https://radiosondy.info/sonde.php?sondenumber=W2840047 (EMA by PY1AU)
Location: 22°44.22' S 44°11.58' W - locator GG77VG63TD - show map
6.1 km West bearing 255° from Rio Claro, Rio de Janeiro, Brazil [?]
21.5 km South bearing 186° from Barra Mansa, Rio de Janeiro, Brazil
76.1 km West bearing 272° from Nova Iguaçu, Nova Iguaçu, Rio de Janeiro, Brazil
102.6 km West bearing 280° from Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
Last position: 2025-07-25 15:33:20 UTC (14d 11h34m ago)
2025-07-25 12:33:20 -03 local time at Rio Claro, Brazil [?]
Altitude: 3457 m
Course: 115°
Speed: 26 km/h
Last path: PY1AU-6>APRS via TCPIP*,qAC,T2CHILE
Positions stored: 6
Others sourced by PY1AU-6: W2840050 W2840067 W2840959 W2840971 W2841063
About this site
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS