Hong Kong Satellite Positioning Reference Station Network (SatRef) consists of 19 Continuously Operating Reference Stations (CORS). The data is disseminated to users for high accuracy positioning works via the Receiver Independent Exchange (RINEX) format. In addition to SatRef stations, there is another CORS managed by Marine Department at Kau Yi Chau, KYC1 is also disseminated at SatRef website.
|Data Type||Data Length||Epoch Interval||RINEX 2 Format||RINEX 3 Format|
|Observation||1 hour||1 second||✓||✓|
|Observation||1 hour||5 seconds||✓||✓|
|Observation||1 day||5 seconds||✓|
|Observation||1 day||30 seconds||✓||✓|
|Meteorological Data||1 day||1 minute||✓||✓|
|Auxiliary Tilt Sensor||1 day||1 minute||✓|
The RINEX files stored in SatRef server are compressed by RNXCMP software. RNXCMP is the software for compression/restoration of RINEX observation files developed by Yuki Hatanaka of Geospatial Information Authority of Japan (GSI). It converts the format of GNSS observation files from the RINEX format (version 2.xx or 3.xx) to a compressed format (the CompactRINEX format, or often called the Hatanaka-compressed format) and vice versa. Please visit GSI website http://terras.gsi.go.jp/ja/crx2rnx.html for details.
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ftp (to be suspended)
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