DOI: 10.57760/sciencedb.fastro.00024
title: CRAFTS wide-band datacube pre-release
title: CRAFTS wide-band datacube pre-release

description: We are pleased to announce the pre-release of the CRAFTS wide-band spectral datacubes. This encompasses the frequency range of 1323 to 1419 MHz and includes almost all the drift scans conducted under the CRAFTS project between July 31, 2021 and January 30, 2025. In total, there are 182 drift scans, amounting to about 880 hours of data covering ~3500 square degrees of the sky (blue regions in Fig.1). Please note that observations prior to July 31st, 2021 and a portion of later data (gray regions in Fig.1) are excluded in this pre-release due to damage by compressor RFI, being led by an external PI, or other specific considerations. The data has been processed into datacubes with the intention of facilitating extra-galactic spectral line research. The frequency range has been selected because data below 1323 MHz has a large chance to be affected by satellite radio frequency interference (RFI), while data above 1419 MHz is predominantly influenced by Galactic HI, which have already been incorporated into previously released narrow-band datacubes. The datasets are publicly available without collaboration required. Proper attribution through citation of the dataset DOI and related publications listed in the Reference section of the Readme document is appreciated.Detailed information about the dataset and subsequent releases can be found on the HIverse platform (https://hiverse.zero2x.org/wide). The HIverse platform features an integrated search engine, through which users can search by RA & Dec coordinates. 
description: We are pleased to announce the pre-release of the CRAFTS wide-band spectral datacubes. This encompasses the frequency range of 1323 to 1419 MHz and includes almost all the drift scans conducted under the CRAFTS project between July 31, 2021 and January 30, 2025. In total, there are 182 drift scans, amounting to about 880 hours of data covering ~3500 square degrees of the sky (blue regions in Fig.1). Please note that observations prior to July 31st, 2021 and a portion of later data (gray regions in Fig.1) are excluded in this pre-release due to damage by compressor RFI, being led by an external PI, or other specific considerations. The data has been processed into datacubes with the intention of facilitating extra-galactic spectral line research. The frequency range has been selected because data below 1323 MHz has a large chance to be affected by satellite radio frequency interference (RFI), while data above 1419 MHz is predominantly influenced by Galactic HI, which have already been incorporated into previously released narrow-band datacubes. The datasets are publicly available without collaboration required. Proper attribution through citation of the dataset DOI and related publications listed in the Reference section of the Readme document is appreciated.Detailed information about the dataset and subsequent releases can be found on the HIverse platform (https://hiverse.zero2x.org/wide). The HIverse platform features an integrated search engine, through which users can search by RA & Dec coordinates.