CWOP Information for JF1AJE (AS695) in Tokyo, JP

The following information is known about JF1AJE. If you think that any information is incorrect, then please follow the instructions for correcting that data item.

It is possible that this page will report a problem where no problem exists. If you believe that this has happened, then please contact me (address at the bottom of this page) and explain clearly why you think this page is in error. Note that any changes that you make may take a few days to show up here, so please give it a week before commenting.

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Registered Location

Latitude: 35° 44' 12" N (deg min sec), 35.7367° (decimal), 3544.20N (LORAN)
Longitude: 139° 24' 4" E (deg min sec), 139.4012° (decimal), 13924.07E (LORAN)
Elevation: 110 metres (361 feet) -- validated against 111 metres (364 feet) from SRTM.C_20TO43_3
Location: Tokyo, JP
Weather station Manager/Operator: Matsuzawa
Station type/software: UI-View 32

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'JF1AJE' marker) will display the latitude/longitude of that point.

If the displayed location (or elevation) of the weather observing location is incorrect, please drag the marker to the right location (or click in the right location), and then send the updated information. Please note that we are trying to spot either the Stevenson Screen (or equivalent) or the location where the barometric readings are taken.

NOTE: The Registered Location is the location that the station owner provided when they signed up with CWOP. Show location history.

There are no photographs of the station. If you are the site operator and have pictures of this location, then please email them to

You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs.

Neighboring Stations

This is a list of stations that are close to this station.

You can also subscribe to an RSS feed to tell you when new stations come online in this area. Choose either within 100 miles or 250 miles .

CW84430.0 milesSouth Tokyo, JP (lat 35.7367°, long 139.4012°, altitude 110 metres) (data present)
RJTC1.8 milesSouth Tachikawa Ab, Japan (lat 35.7108°, long 139.4031°, altitude 98 metres) (data present)
RJTY3.1 milesWest Yokota Ab, Japan (lat 35.7486°, long 139.3486°, altitude 139 metres) (data present)
RJTJ7.3 milesNorth Iruma Ab, Japan (lat 35.8419°, long 139.4106°, altitude 90 metres)
RJTF8.4 milesSoutheast Chofu Airport, Japan (lat 35.6717°, long 139.5280°, altitude 44 metres) (data present)
RJTR15.4 milesSouth Zama Airfield, Japan (lat 35.5144°, long 139.3947°, altitude 109 metres) (data present)
RJTD19.9 milesEast Tokyo, Japan (lat 35.6918°, long 139.7514°, altitude 36 metres) (data present)
JH4XSY-1323.7 milesEast Soka City, JP (lat 35.8445°, long 139.8017°, altitude 12 metres) (data present)
RJTT24.8 milesSoutheast Tokyo International Airport, Japan (lat 35.5533°, long 139.7811°, altitude 10 metres) (data present)
4767025.0 milesSoutheast Yokohama, 14, Japan (lat 35.4383°, long 139.6517°, altitude 42 metres) (data present)

The sites marked above thus did not report continuously during the analysis period, so the offsets may (probably will) not be accurate.

Location Formats

The location is shown in three different formats. Each of these is used in some software, and is shown on some websites.

Degrees Minutes Seconds: VWS/VWSAPRS, WeatherLink 5.5, WeatherLink (5.2-5.4), WeatherView (Linux)

Decimal degrees: FreeWX, WeatherView32 (PC application)

LORAN: WeatherDisplay, WUHU, Henriksen WServer


CWOP Home: This describes the whole CWOP program and has a large amount of useful information.

CWOP Siting Guide (PDF): This is a guide to siting and operating a CWOP station. This is a must-read document.

Another CWOP Guide (PDF): This is another guide to siting and operating a CWOP station. This is a must-read document.

Urban Siting and Operations (PDF): This is a guide to siting and operating a CWOP station in an urban environment.

APRS WX Message format: This describes the actual format of the messages transmitted that carry WX information.

WXQC Mailing List: This is a mailing list where data quality issues are discussed. Assistance with software configuration can often be found here.

Topo Map Reading Guide: How to read USGS topographic maps, with a good section on reading contours.

Geographically nearby web pages: Use Geourl to find web pages that deal with locations geographically close to this site.

Overall website comments, problems etc to Philip Gladstone
Page layout last modified Sunday, 28 February 2016
Questions for this weather station owner/operator to Matsuzawa
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