schema_version = 1
dataset_id = "nutation-iau2000a"
dataset_kind = "nutation"
source = "Mathews, Herring & Buffett (2002) — IAU 2000A model"
generator = "siderust-archive/src/nutation/pipeline.rs"
generator_version = "0.1.0"
generated_at = "2026-05-28T00:00:00Z"
time_scale = "TT"
frame = "ICRF"
center = "Earth"
units = "0.1 microarcsec; t-derivatives in 0.1 microarcsec/century"
valid_from_jd = -3000000.0
valid_to_jd = 3000000.0
dynamical_model = "IAU 2000A precession-nutation (MHB2000)"
notes = """
Tables extracted from SOFA `iauNut00a` / `iauNut00b` and the IERS Conventions
(2010) Tables 5.3a/5.3b. IAU 2000B (77 terms) is a truncated subset that
agrees with 2000A to better than ~1 mas.
"""
[[files]]
path = "raw/nut00a_ls.csv"
format = "iers-nutation-csv"
sha256 = "45e72b3aa9771b355a06d22f31941042f74d0068fcbee322c0669433edba9e64"
bytes = 32850
[[files]]
path = "raw/nut00a_pl.csv"
format = "iers-nutation-csv"
sha256 = "5001277952cf3f6183ec384b5e385b7b4a2e4e0ec9c6b04050a25224cdf0b0c6"
bytes = 25929
[[files]]
path = "raw/nut00b_ls.csv"
format = "iers-nutation-csv"
sha256 = "055fe90c8a5679da76d7d8b503826d04cb0c3ff5b805c70ecd4fa7296a683130"
bytes = 4364
[[references]]
citation = "Mathews, P. M., Herring, T. A., Buffett, B. A. (2002). Modeling of nutation and precession: New nutation series for nonrigid Earth and insights into the Earth's interior. JGR 107, B4."
doi = "10.1029/2001JB000390"
[[references]]
citation = "IERS Conventions (2010), IERS Technical Note 36."
url = "https://www.iers.org/IERS/EN/Publications/TechnicalNotes/tn36.html"