CCSDS 502.0-B-3 Orbit Ephemeris Message parser and interpolator
Add READMEs for 16 packages, fix merlint issues, add KVN tests
READMEs for all new packages. Fix missing docs (ocm, stix, globe),
naming (project_visible→visible, label_info→info, shader_kind→kind),
add .ocamlformat to csvt, add 11 KVN tests.
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README.md
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README.md
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# oem
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CCSDS 502.0-B-3 Orbit Ephemeris Message parser and interpolator.
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Parses the KVN (Keyword=Value Notation) text format for orbit ephemeris data. Provides Hermite interpolation between state vectors for smooth position queries at arbitrary times.
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## Installation
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```
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opam install oem
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```
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## Usage
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```ocaml
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match Oem.of_file "ephemeris.oem" with
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| Ok oem ->
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Printf.printf "Object: %s\n" (Oem.object_name oem);
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let (start, stop) = Oem.time_range oem in
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(* Interpolate at a specific time *)
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(match Oem.interpolate_all oem some_ptime with
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| Some sv -> Fmt.pr "Position: %a\n" Oem.pp_vec3 sv.pos
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| None -> print_endline "Time out of range")
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| Error e -> Fmt.epr "%a\n" Oem.pp_error e
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```
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## API Overview
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- **`type t`** -- Complete OEM file: header + segment list
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- **`type segment`** -- Metadata, state vector array, optional covariance list
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- **`type state_vector`** -- `epoch : Ptime.t`, `pos : vec3`, `vel : vec3`
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- **`type covariance`** -- Epoch, reference frame, upper-triangle matrix (21 elements)
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- **`of_string`**, **`of_channel`**, **`of_file`** -- Parse KVN format
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- **`interpolate`** -- Hermite interpolation within a segment
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- **`interpolate_all`** -- Search all segments and interpolate
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- **`time_range`** -- Start/stop time spanning all segments
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- **`object_name`**, **`object_id`** -- Accessors
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## License
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ISC