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spa

v0.5.1 Growing

The Solar Position Algorithm module (SPA) for Rust calculates the sunrise-sunset and azimuth and zenith-angle for specific geo-position and time (UTC); for example for solar-panel-alignment or automotive.

Apache-2.0 Edition 2021
#algorithm#solar#sunrise#azimuth#zenith

Quick Verdict

  • โœ•Not updated for 2+ years
  • !Pre-1.0: API may have breaking changes
  • โœ“Tiny footprint (125KB, 3 deps)
  • โœ“Permissive license (Apache-2.0)

Security

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Downloads
3.5M
Dependents
77
Releases
8
Size
125KB

Deep Insights

๐Ÿ“Š
Stable downloads

282.1K downloads in the last 30 days (9.4K/day). Volume is roughly flat compared to the previous period.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 8+ years old, spa hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿชถ
Minimal dependencies

Only 3 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.

๐ŸŒŸ
Used by top crates

Notable dependents include my-iot, source_map_gen, pipescribe, pvlib-rust, pantuctl. When high-quality crates choose spa, it's a strong quality signal.

Health Breakdown

Maintenance 4/25

Recency, release consistency, active ratio

Quality 16/25

Yanked ratio, deps, size, maturity, features

Community 8/20

Reverse deps, ownership, ecosystem

Popularity 8/15

Downloads, momentum, growth trend

Documentation 13/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
9K/day avg+33%
05K10K15K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.5.1
95%
v0.3.1
4%
v0.3.0
1%
v0.2.0
0%
v0.4.0
0%

Release Timeline

8 releasessince 2017
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2
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2020
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2022
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Feature Flags

default =["std"]

std*

README

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Maintainers

Dependencies
3
direct dependencies
Dependents
77
crates depend on spa

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