rnx2crx is a small command line utility to compress your RINEX files to CRINEX (Compact RINEX) files. It is modern replacement of the historical tool.

⚠️ this tool is less stabilized than our CRX2RNX tool

You can download the latest version from the release portal

You can directly install the tool from Cargo with internet access:

cargo install rnx2crx

Download the version you are interested in:

git clone https://github.com/nav-solutions/rnx2crx

And build it using cargo:

cargo build --all-features -r

The tool expects one input file that needs to be a valid Observation RINEX file:

rnx2crx AJAC3550.21O
Compressed AJAC3550.21D

By default the tool lets you know what the output file is (stdout).

If that bothers you, simply use -q (quiet option):

rnx2crx -q AJAC3550.21O

The tool supports RINEX V2, V3 and V4. It will preserve the input format by default, so standardized V3 filenames will produce a standardized file name:

rnx2crx ACOR00ESP_R_20213550000_01D_30S_MO.rnx
Compressed ACOR00ESP_R_20213550000_01D_30S_MO.crx

We have one option that let's you convert a V3 format to V2 directly:

rnx2crx -s ACOR00ESP_R_20213550000_01D_30S_MO.rnx
Compressed ACOR3550.21D

You can specify a custom output location with --prefix [directory]:

rnx2crx --prefix /tmp -s ACOR00ESP_R_20213550000_01D_30S_MO.rnx
Compressed /tmp/ACOR3550.21D

You can specify a filename yourself with -o [filename], which overrides any filename determination logic:

rnx2crx -o TEST.txt ACOR00ESP_R_20213550000_01D_30S_MO.rnx
Compressed TEST.txt

The tool supports gzip compressed CRINEX files natively, but can only generate "plain" CRINEX at the moment:

crx2rnx ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz
Compressed ESBC00DNK_R_20201770000_01D_30S_MO.crx

We support several option to optimize your compression scenario:

1. -d YYYY-MM-DD let's you customize the CRINEX compression date. When -d is not specified, we use the system time:

rnx2crx -q -d 2000-01-01 ESBC00DNK_R_20201770000_01D_30S_MO.rnx.gz

2. -t HH:MM:SS let's you customize the CRINEX compression time during that date. When -t is not specified, we use the system time.

crx2rnx -q -d 2000-01-01 -t 01:02:03 ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz

When Time is specified without Date, we use the date retrieved from system time and replace the time during that day.

This application is released under the Mozilla V2 Public license.