siderust-archive 0.1.0

Reusable Rust bindings for the Siderust Archive: manifests, checksums, provenance, and runtime download of scientific datasets (IERS time data, kernels, planetary theories).
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# EGM2008 geopotential coefficients (low-degree subset, n = 2..=4).

schema_version    = 1
dataset_id        = "gravity-egm2008-n2-4"
dataset_kind      = "geopotential"
source            = "Pavlis et al. (2012) EGM2008; NGA product"
generator         = "siderust-archive/src/gravity/pipeline.rs"
generator_version = "0.1.0"
generated_at      = "2026-05-28T00:00:00Z"
time_scale        = "n/a"
frame             = "ITRF"
center            = "Earth"
units             = "dimensionless (normalized Stokes coefficients)"
valid_from_jd     = 0.0
valid_to_jd       = 0.0
dynamical_model   = "EGM2008 spherical harmonic geopotential (degree/order 2..4)"

notes = """
Fully normalized Stokes coefficients C̄ₙₘ and S̄ₙₘ through degree/order 4.
For higher-degree coefficients, fetch the full EGM2008 product from NGA:
  https://earth-info.nga.mil/index.php?dir=wgs84&action=wgs84
"""

[[files]]
path   = "raw/egm2008_n2_4.csv"
format = "egm2008-csv"
sha256 = "40ba40ad91439493884f10b8166da6381ad93a7b4b0a9afdb7289ca5048d8611"
bytes  = 364

[[references]]
citation = "Pavlis, N. K., Holmes, S. A., Kenyon, S. C., & Factor, J. K. (2012). The development and evaluation of the Earth Gravitational Model 2008 (EGM2008). JGR Solid Earth, 117, B04406."
doi      = "10.1029/2011JB008916"

[[references]]
citation = "NGA EGM2008 product page."
url      = "https://earth-info.nga.mil/index.php?dir=wgs84&action=wgs84"