### Custom PPP Setup

Source: https://github.com/nav-solutions/rinex/wiki/File-Loading

Apply a custom PPP setup by specifying the configuration file path with the `-c` option after the 'ppp' opmode. This ensures the custom configuration is correctly associated with the PPP operation.

```bash
rinex-cli --fp /tmp/obs.txt --fp /tmp/nav.txt ppp -c /tmp/preset.json
```

--------------------------------

### Form PPP Compliant Context with Multiple Files

Source: https://github.com/nav-solutions/rinex/wiki/File-Loading

Stack multiple RINEX files (OBS, NAV, SP3) using the `--fp` flag to create a dataset compliant with PPP solutions. This setup is the minimum requirement for post-processed navigation.

```bash
rinex-cli     --fp test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz     --fp test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz     --fp test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz
```

--------------------------------

### View All Meteo Sensors Data

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Meteo

Use this command to visualize all physics sampled in a Meteo RINEX file. Ensure the RINEX-Cli is installed and the file path is correct.

```bash
rinex-cli \
      -f ./test_resources/MET/V3/POTS00DEU_R_20232540000_01D_05M_MM.rnx.gz \
      -g -o
```

--------------------------------

### Get RINEX CLI Help

Source: https://github.com/nav-solutions/rinex/wiki/Build-the-apps

Access the general help menu for rinex-cli or specific help for its subcommands by using the -h flag.

```bash
rinex-cli -h  # general help
rinex-cli ppp -h # ppp subcommand help

```

--------------------------------

### Verify RINEX CLI Installation

Source: https://github.com/nav-solutions/rinex/wiki/Build-the-apps

Check if the rinex-cli application is installed and accessible by running the --version command.

```bash
rinex-cli --version

```

--------------------------------

### Update Rust Toolchain

Source: https://github.com/nav-solutions/rinex/wiki/Build-the-apps

Ensure your Rust environment is up-to-date using rustup. This is recommended for maintaining your Rust installation.

```bash
rustup update 

```

--------------------------------

### Define Time Window for Data

Source: https://github.com/nav-solutions/rinex/wiki/preproc-filtering

Define a time window for data selection by stacking two epoch filters (start and end) using ';' as a separator in the -P option.

```bash
rinex-cli \
    -P ">2020-06-12T08:00:00 UTC; <=2020-06-25T16:00:00 UTC" \
    --fp test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz
```

--------------------------------

### Basic PPP Operation

Source: https://github.com/nav-solutions/rinex/wiki/File-Loading

Perform a basic PPP operation by specifying observation and navigation files, followed by the 'ppp' opmode. Options that apply to the opmode should be passed after it.

```bash
rinex-cli --fp /tmp/obs.txt --fp /tmp/nav.txt ppp
```

--------------------------------

### Split Meteo sensor observation file

Source: https://github.com/nav-solutions/rinex/wiki/time-binning

Demonstrates time binning applied to Meteo sensor observation data.

```bash
rinex-cli \
    -f test_resources/MET/V3/POTS00DEU_R_20232540000_01D_05M_MM.rnx.gz \
    --tbin "4 hour"
```

--------------------------------

### Run PPP with GPS using Kalman Filter and Postfit Denoising

Source: https://github.com/nav-solutions/rinex/wiki/ppp

Activate a secondary Kalman filter for denoising postfit residuals in PPP with GPS. This configuration is more demanding and requires specific configuration scripts.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/CLK/V3/GRG0MGXFIN_20201770000_01D_30S_CLK.CLK.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -P GPS \
    -p -c config/survey/ppp_kf_postfit.json \
    | tee logs.txt
```

--------------------------------

### Determine DOY for Today

Source: https://github.com/nav-solutions/rinex/blob/main/tools/README.md

Use this command to get the Day of Year for the current date. This is useful for tasks like downloading data sorted by DOY from FTP servers.

```bash
./tools/doy.py
```

--------------------------------

### Run PPP opmode

Source: https://github.com/nav-solutions/rinex/wiki/Report

Execute the ppp opmode to generate a custom chapter in the analysis report.

```bash
rinex-cli \
    --fp test_resources/CRNX/V3/MOJN00DNK_R_20201770000_01D_30S_MO.crx.gz \
    --fp test_resources/NAV/V3/MOJN00DNK_R_20201770000_01D_MN.rnx.gz \
    --fp test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    ppp
```

--------------------------------

### Run PPP with GPS using Kalman Filter

Source: https://github.com/nav-solutions/rinex/wiki/ppp

Execute PPP for GPS constellation using a Kalman filter for navigation. Ensure SP3 and CLK RINEX files are from the same agency and timescale as Observation RINEX for optimal results.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/CLK/V3/GRG0MGXFIN_20201770000_01D_30S_CLK.CLK.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -P GPS \
    -p -c config/survey/ppp_kf.json \
    | tee logs.txt
```

--------------------------------

### Run PPP with Galileo using Kalman Filter and Postfit Denoising

Source: https://github.com/nav-solutions/rinex/wiki/ppp

Configure and run PPP for the Galileo constellation, utilizing a Kalman filter with postfit denoising. Galileo generally yields better results for PPP compared to GPS.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/CLK/V3/GRG0MGXFIN_20201770000_01D_30S_CLK.CLK.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -P GAL \
    -p -c config/survey/gpst_ppp_postfit.json \
    | tee logs.txt
```

--------------------------------

### Access Graph Mode Help

Source: https://github.com/nav-solutions/rinex/wiki/Graph-mode

Displays the help menu for Graph mode options using the -g and -h flags.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz -g -h
```

--------------------------------

### Generate Basic Report with rinex-cli

Source: https://github.com/nav-solutions/rinex/wiki/Data-Analysis

This command loads a single file and generates a basic analysis report. The report name defaults to the input product's name.

```bash
rinex-cli \
    --fp ./test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz
```

--------------------------------

### Build RINEX Applications with Cargo

Source: https://github.com/nav-solutions/rinex/wiki/Build-the-apps

Clone the RINEX repository and build all applications using cargo. It is important to use the --release flag for optimized binaries.

```bash
git clone https://github.com/georust/rinex
cd rinex
cargo build --all-features -r

```

--------------------------------

### Load Single RINEX File

Source: https://github.com/nav-solutions/rinex/wiki/File-Loading

Use the `--fp` flag to load a single RINEX file. This flag does not have a shortened version.

```bash
rinex-cli     --fp test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz
```

--------------------------------

### Project SV orbital attitude with SP3

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Orbits

Projects SV orbital attitude in 3D using both navigation data and high-precision SP3 orbital products.

```bash
rinex-cli \
     -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
     -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
     -P GPS \
     -g --orbit
```

--------------------------------

### Add RINEX Binaries to PATH

Source: https://github.com/nav-solutions/rinex/wiki/Build-the-apps

Add the directory containing the compiled RINEX binaries to your system's PATH environment variable. This allows you to run the applications from any location.

```bash
export PATH=${PATH}:${PWD}/target/release

```

--------------------------------

### Visualize Clock Data and Residuals

Source: https://github.com/nav-solutions/rinex/wiki/SP3

Use the --clk and --clk-residual flags to project clock states from SP3 files and compare them against broadcast radio data.

```bash
./target/release/rinex-cli \
   -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
   -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
   -P GPS \
   -g --clk --clk-residual
```

--------------------------------

### Visualize SV clock states

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Clock

Enables clock state visualization from a Navigation RINEX file using the -g and --clk flags.

```bash
rinex-cli \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -P GPS \ # reduce data quantity
    -g --clk
```

--------------------------------

### Visualize Orbits and Residuals

Source: https://github.com/nav-solutions/rinex/wiki/SP3

Use the --orbits and --orbit-residual flags to project and compare orbital content from NAV and SP3 files.

```bash
./target/release/rinex-cli \
   -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
   -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
   -P GPS \
   -g --orbits --orbit-residual
```

--------------------------------

### Reformat Galileo Solutions with CGGTTS

Source: https://github.com/nav-solutions/rinex/wiki/cpp-cggtts

Apply the --cggtts option with the -p flag for reformatting Galileo solutions. Note that this increases processing time.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201760000_01D_15M_ORB.SP3.gz \
    -P Galileo \
    -c config/survey/cpp_lsq.json \
    -p --cggtts
```

--------------------------------

### Reformat GPS Solutions with CGGTTS

Source: https://github.com/nav-solutions/rinex/wiki/cpp-cggtts

Use the --cggtts option with the -p flag to reformat GPS solutions. This mode is more time-consuming.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201760000_01D_15M_ORB.SP3.gz \
    -P GPS \
    -c config/survey/cpp_lsq.json \
    -p --cggtts
```

--------------------------------

### Project SV orbital attitude

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Orbits

Projects SV orbital attitude in 3D using navigation data.

```bash
rinex-cli \
     -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
     -P GPS \
     -g --orbit
```

--------------------------------

### Load and Identify RINEX Context

Source: https://github.com/nav-solutions/rinex/wiki/esbcdnk-analysis

Use the -i flag to perform a quick identification of the RINEX file's context. This command is useful for initial file inspection.

```bash
rinex-cli -i \
   -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz
```

--------------------------------

### Analyze RINEX files with rinex-cli

Source: https://github.com/nav-solutions/rinex/wiki/nya-cggtts

Use the -i flag to inspect individual RINEX files for receiver information and sampling rates.

```bash
rinex-cli -i \
    -f /tmp/NYA100NOR_S_20232540000_01D_30S_MO.crx.gz
```

```bash
rinex-cli -i \
    -f /tmp/NYA200NOR_R_20232540000_01D_30S_MO.crx.gz
```

--------------------------------

### Visualize Differential Code Bias (DCB)

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Observation

Request DCB visualization after loading OBS RINEX files using the --dcb flag.

```bash
rinex-cli \
    -P G05,G15,G08 \ # reduce data quantity
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz -g --dcb
```

--------------------------------

### Preprocess and merge RINEX files

Source: https://github.com/nav-solutions/rinex/wiki/file-merging

Applies preprocessing filters, such as constellation selection, before merging files. Preprocessing flags must be specified before the merge operation.

```bash
rinex-cli \
    -f test_resources/OBS/V3/VLNS0010.22O \
    -P GPS \
    -m test_resources/OBS/V3/VLNS0630.22O

[INFO rinex_cli] "WORKSPACE/VLNS0010/VLNS0630.22O" has been generated
```

--------------------------------

### Filter Timeframe and Constellation

Source: https://github.com/nav-solutions/rinex/wiki/preprocessing

Demonstrates two methods for applying multiple filters: using a semicolon separator or multiple -P flags.

```bash
rinex-cli -P "Gal;<= 2024-08-24T10:00:00 UTC" [...]
rinex-cli -P Gal -P "<= 2024-08-24T10:00:00 UTC" [...]
```

--------------------------------

### Generate Sky Plot from SP3 File

Source: https://github.com/nav-solutions/rinex/wiki/Graph-SkyPlot

Uses high-precision orbital information from an SP3 file to generate a sky plot, supporting SV filtering.

```bash
./target/release/rinex-cli \
   -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
   -P G05,G08,G15,G16,G31 \ # reduce quantity of SV
   -g --sky
```

--------------------------------

### Visualize Code Multipath (MP) bias

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Observation

Request code Multipath bias visualization using the --mp flag.

```bash
rinex-cli \
    -P G05,G15,G08 \ # reduce data quantity
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz -g --mp
```

--------------------------------

### Split RINEX file at Epoch

Source: https://github.com/nav-solutions/rinex/wiki/file-split

Perform a split operation using the -s flag followed by an Epoch descriptor, then verify the resulting files.

```bash
rinex-cli \
   -f test_resources/OBS/V3/ACOR00ESP_R_20213550000_01D_30S_MO.rnx \
   -s "2021-12-21T00:05:23 UTC"

rinex-cli \
	-f WORKSPACE/ACOR00ESP_R_20213550000_01D_30S_MO/ACOR00ESP_R_20213550000_01D_30S_MO-20211221_0523GPST.rnx \
	-i -e
```

--------------------------------

### Visualize differenced RINEX data

Source: https://github.com/nav-solutions/rinex/wiki/rinex-sub

Generates a graph and CSV output from the previously generated differenced RINEX file to analyze phase drift.

```bash
rinex-cli -f WORKSPACE/OB712480/DIFFERENCED.23O.gz -g --csv
```

--------------------------------

### Analyze RINEX file time frame

Source: https://github.com/nav-solutions/rinex/wiki/file-split

Use the -i and -e flags to inspect the first and last Epochs of a RINEX file to determine valid split points.

```bash
rinex-cli \
	-f test_resources/OBS/V3/ACOR00ESP_R_20213550000_01D_30S_MO.rnx \
	-i -e
```

--------------------------------

### Filter by Specific Observables (L1C, l2c)

Source: https://github.com/nav-solutions/rinex/wiki/preproc-filtering

Retain specific observables, such as phase observations on L1C and l2c signals, by listing them in the -P option.

```bash
rinex-cli \
    --fp test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -P L1C,l2c
```

--------------------------------

### Decompress CRNX V3 with custom output

Source: https://github.com/nav-solutions/rinex/wiki/crx2rnx

Decompresses a V3 Hatanaka compressed file and specifies a custom output filename using the -o flag.

```bash
crx2rnx \
    -f test_resources/CRNX/V3/KMS300DNK_R_20221591000_01H_30S_MO.crx.gz \
    -o custom.txt
```

--------------------------------

### Configure logger verbosity with RUST_LOG

Source: https://github.com/nav-solutions/rinex/wiki/logs

Sets the logging level to trace for the rinex-cli tool during execution.

```bash
RUST_LOG=trace rinex-cli --fp test_resources/NAV/V2/amel010.21g
```

--------------------------------

### Split RINEX file with constellation filter

Source: https://github.com/nav-solutions/rinex/wiki/time-binning

Performs time binning on a specific satellite constellation.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -P GPS --tbin "4 hour"
```

--------------------------------

### Load Directory Recursively

Source: https://github.com/nav-solutions/rinex/wiki/File-Loading

Use the `-d` flag to load all supported files within a directory recursively. The default depth is 5, which can be changed with the `--depth` option.

```bash
rinex-cli -d /path/to/directory
```

--------------------------------

### Generate CGGTTS solutions with rinex-cli

Source: https://github.com/nav-solutions/rinex/wiki/spp-cggtts

Commands to perform SPP positioning with CGGTTS output for different constellations. The -p flag is required as CGGTTS is a subsidiary of the SPP mode.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201760000_01D_15M_ORB.SP3.gz \
    -P GPS \
    -c config/survey/spp_lsq.json \
    -p --cggtts
```

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201760000_01D_15M_ORB.SP3.gz \
    -P Galileo \
    -c config/survey/spp_lsq.json \
    -p --cggtts
```

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201760000_01D_15M_ORB.SP3.gz \
    -P GPS,Galileo \
    -c config/survey/spp_lsq.json \
    -p --cggtts
```

--------------------------------

### View Specific Meteo Sensors Data

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Meteo

Retain only temperature and pressure sensing data for visualization by specifying their RINEX codes. This command filters the output to include only the specified physics.

```bash
rinex-cli \
      -f ./test_resources/MET/V3/POTS00DEU_R_20232540000_01D_05M_MM.rnx.gz \
      -P TD,PR \
      -g -o
```

--------------------------------

### Decompress CRNX V1 file

Source: https://github.com/nav-solutions/rinex/wiki/crx2rnx

Decompresses a V1 Hatanaka compressed file.

```bash
crx2rnx \
    -f test_resources/CRNX/V1/AJAC3550.21D
```

--------------------------------

### Generate a GNSS analysis report

Source: https://github.com/nav-solutions/rinex/wiki/Report

Basic command to generate a report from provided RINEX and navigation files.

```bash
rinex-cli \
    --fp test_resources/CRNX/V3/MOJN00DNK_R_20201770000_01D_30S_MO.crx.gz \
    --fp test_resources/NAV/V3/MOJN00DNK_R_20201770000_01D_MN.rnx.gz
```

--------------------------------

### Configure Logging Verbosity

Source: https://github.com/nav-solutions/rinex/blob/main/README.md

Set the RUST_LOG environment variable to control debug output levels for the library.

```bash
export RUST_LOG=trace,rinex=debug
```

--------------------------------

### Visualize GNSS signal combinations

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Observation

Generate plots for standard GNSS carrier signal recombinations, such as the Geometry Free combination, using the --gf flag.

```bash
rinex-cli \
    -P G05,G15,G08 \ # reduce data quantity
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz -g --gf
```

--------------------------------

### Reformat Mixed Constellation Solutions with CGGTTS

Source: https://github.com/nav-solutions/rinex/wiki/cpp-cggtts

Process solutions from multiple constellations (e.g., GPS, Galileo) using the --cggtts option. This requires specifying multiple constellations with the -P flag.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201770000_01D_15M_ORB.SP3.gz \
    -f test_resources/SP3/GRG0MGXFIN_20201760000_01D_15M_ORB.SP3.gz \
    -P GPS,Galileo \
    -c config/survey/cpp_lsq.json \
    -p --cggtts
```

--------------------------------

### Generate Sky Plot from Navigation RINEX

Source: https://github.com/nav-solutions/rinex/wiki/Graph-SkyPlot

Uses a navigation RINEX file to plot satellite positions, with an optional filter to reduce the number of displayed SVs.

```bash
./target/release/rinex-cli \
   -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
   -P G05,G08,G31,E05,E07,E08,E25 \ # reduce quantity of SV
   -g --sky
```

--------------------------------

### Split RINEX file by time duration

Source: https://github.com/nav-solutions/rinex/wiki/time-binning

Divides a standard RINEX file into multiple files of a specified duration.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    --tbin "4 hour"
```

--------------------------------

### Analyze RINEX Record

Source: https://github.com/nav-solutions/rinex/wiki/esbcdnk-analysis

Run a detailed analysis of the RINEX record by omitting the -i flag. Focus on specific constellations like GPS and observations on L1 by adjusting parameters as needed.

```bash
rinex-cli \
   -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz
```

--------------------------------

### Decompress CRNX V3 file

Source: https://github.com/nav-solutions/rinex/wiki/crx2rnx

Decompresses a V3 Hatanaka compressed file using the default output naming convention.

```bash
crx2rnx \
    -f test_resources/CRNX/V3/KMS300DNK_R_20221591000_01H_30S_MO.crx.gz
```

--------------------------------

### Decimate RINEX records by time interval

Source: https://github.com/nav-solutions/rinex/wiki/preproc-decimation

Reduces the sampling period to a specified duration, such as 10 minutes, and optionally chains with other preprocessing filters.

```bash
rinex-cli \
    --fp test_resources/MET/V3/POTS00DEU_R_20232540000_01D_05M_MM.rnx.gz \
    -P "decim:10 min" \
    --filegen
```

```bash
rinex-cli \
    --fp test_resources/MET/V3/POTS00DEU_R_20232540000_01D_05M_MM.rnx.gz \
    -P "decim:10 min" \
    -P ">2020-06-25T08:00:00 UTC" \
    -P "<=2020-06-25T10:00:00 UTC"
```

--------------------------------

### Process multiple files with --filegen

Source: https://github.com/nav-solutions/rinex/wiki/file-gen

Applies decimation across multiple files of the same format to create a combined output.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/CRNX/V3/MOJN00DNK_R_20201770000_01D_30S_MO.crx.gz \
	-P decim:1h --filegen
```

--------------------------------

### Resample GNSS Observations with RINEX-Cli

Source: https://github.com/nav-solutions/rinex/wiki/preproc-focused

This command resamples GNSS carrier observations from an OBS RINEX file to 1-minute intervals, impacting the number of PVT solutions generated. Ensure you understand the implications of decimation on the navigation filter.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.crx.gz \
    -P "obs:decim:1 min" \
    -p --spp
```

--------------------------------

### Filter by Specific Epoch

Source: https://github.com/nav-solutions/rinex/wiki/preproc-filtering

Filter data to a single epoch by providing a Hifitime::Epoch string to the -P option. Equality is implied.

```bash
rinex-cli \
    -P "2020-06-25T04:00:00 UTC" \
    --fp test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz
```

--------------------------------

### Merge CRINEX files

Source: https://github.com/nav-solutions/rinex/wiki/merge

Merges two CRINEX files while preserving the compressed format.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \ 
    -m test_resources/CRNX/V3/MOJN00DNK_R_20201770000_01D_30S_MO.crx.gz
```

--------------------------------

### Merge CRINEX files

Source: https://github.com/nav-solutions/rinex/wiki/file-merging

Merges two CRINEX files while preserving the file format.

```bash
rinex-cli \
  -f test_resources/CRNX/V3/ACOR00ESP_R_20213550000_01D_30S_MO.crx \
  -m test_resources/CRNX/V3/BME100HUN_R_20213550000_01D_30S_MO.crx
[2024-05-26T09:21:58Z INFO  rinex_cli::fops] 
   "WORKSPACE/ACOR00ESP_R_20213550000_01D_30S_MO/BME100HUN_R_20213550000_01D_30S_MO.crx" has been generated
```

--------------------------------

### Decimate RINEX files using --filegen

Source: https://github.com/nav-solutions/rinex/wiki/file-gen

Reduces data quantity by applying decimation to various RINEX file types.

```bash
rinex-cli \
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
	-P decim:3h --filegen
```

```bash
rinex-cli \
    -f test_resources/MET/V3/POTS00DEU_R_20232540000_01D_05M_MM.rnx.gz \
	-P decim:1h --filegen
```

```bash
rinex-cli \
    -f test_resources/NAV/V3/ESBC00DNK_R_20201770000_01D_MN.rnx.gz \
	-P decim:1h --filegen
```

--------------------------------

### Visualize GNSS signal observations

Source: https://github.com/nav-solutions/rinex/wiki/Graph-Observation

Use the -o or --obs flag to plot GNSS signal observations. Filtering by constellation or satellites is recommended for large files.

```bash
rinex-cli \
    -P G05,G15,G08 \ # reduce data quantity, refer to Preprocessing toolbox
    -f test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz -g -o
```

--------------------------------

### Attempt to merge mismatched RINEX types

Source: https://github.com/nav-solutions/rinex/wiki/merge

Demonstrates an error when attempting to merge a Navigation RINEX file into an Observation RINEX context.

```bash
rinex-cli \
    -f test_resources/OBS/V3/LARM0010.22O \
    -m test_resources/NAV/V3/BRDC00GOP_R_20210010000_01D_MN.rnx.gz

Error: MissingNavigationRinex
```

--------------------------------

### Filter by Multiple Constellations

Source: https://github.com/nav-solutions/rinex/wiki/preproc-filtering

Retain data from multiple constellations, like GPS and BDS, by providing a CSV list to the -P option.

```bash
rinex-cli \
    --fp test_resources/CRNX/V3/ESBC00DNK_R_20201770000_01D_30S_MO.crx.gz \
    -P GPS,BDS
```