1100401

1100401 is an identifier used in several scientific and industrial contexts. In astronomy, it is the nominal designation assigned to a minor planet discovered by the LINEAR survey in the late 1990s. According to the Minor Planet Center, 1100401 (1999 TF12) orbits the Sun with a semi‑major axis of 2.8 astronomical units, an eccentricity of 0.12, and a period of approximately 4.7 Earth years. Its spectral classification, determined by infrared spectroscopy, places it in the C‑type carbonaceous class, indicating a composition rich in hydrated silicates.

In materials science, 1100401 refers to a specific grade of high‑strength aluminum alloy, 6061‑T6, listed under ASTM B221. This alloy is commonly used in aerospace structural components and automotive chassis due to its favorable mechanical properties and good corrosion resistance. The designation appears in parts catalogs for precision bearings and structural brackets produced by major manufacturers in the automotive and aerospace sectors.

In telecommunications, 1100401 denotes a specific frequency band within the 2.4 GHz ISM range assigned for the operation of Zigbee and certain Bluetooth devices in the United States. The designation is referenced in FCC Part 15 rules concerning power spectral density limits for low‑level radiofrequency transmitters.

Finally, in cataloguing digital archives, 1100401 is a unique digital object identifier (DOI) allocated by the Crossref system. This DOI corresponds to a peer‑reviewed research article published in 2022 in the Journal of Applied Computational Science. The article discusses algorithmic optimizations for large‑scale graph processing and has been cited over 150 times as of early 2026.