Add new Orbit type

[helgee]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 65.91760% with 364 lines in your changes missing coverage. Please review.
✅ Project coverage is 68.80%. Comparing base (54aba6e) to head (56d2c39).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/lox-units/src/elements.rs	59.43%	144 Missing ⚠️
crates/lox-orbits/src/orbits.rs	0.00%	139 Missing ⚠️
crates/lox-units/src/utils.rs	0.00%	23 Missing ⚠️
crates/lox-units/src/units.rs	57.14%	18 Missing ⚠️
crates/lox-units/src/anomalies.rs	96.57%	15 Missing ⚠️
crates/lox-time/src/time_of_day.rs	0.00%	12 Missing ⚠️
crates/lox-test-utils/src/approx_eq/results.rs	0.00%	8 Missing ⚠️
crates/lox-units/src/coords.rs	93.47%	3 Missing ⚠️
crates/lox-frames/src/transformations/rotations.rs	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #263      +/-   ##
==========================================
- Coverage   68.90%   68.80%   -0.10%     
==========================================
  Files          90       95       +5     
  Lines       21759    22791    +1032     
==========================================
+ Hits        14992    15681     +689     
- Misses       6767     7110     +343     

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[codspeed-hq]

CodSpeed Performance Report

Merging #263 will not alter performance

_{Comparing he/keplerian (56d2c39) with main (ff23910)}

Summary

✅ 3 untouched
⏩ 1 skipped¹

Footnotes

1. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩