juliensimon/hst-observations

哈勃太空望远镜观测目录是自1990年4月24日发射以来，NASA/ESA哈勃太空望远镜获取的每一次观测的完整索引，数据来源于Mikulski空间望远镜档案馆（MAST）。哈勃的2.4米主镜和一套仪器产生了天文学中最具科学价值的档案之一，已有超过35年的连续低地球轨道运行历史。

目录中的每一行代表一次HST观测——即执行特定仪器、探测器、滤波器和目标指向的曝光时间单位。行数据包括观测的提案（提案ID、PI、标题、类别：GO、SNAP、GTO、DDT、CAL）、目标（名称、坐标、移动/固定标志）、仪器和探测器（ACS WFC/HRC/SBC、WFC3 UVIS/IR、WFPC2 WF/PC、STIS、COS、NICMOS，以及传统的FOC/FOS/HRS/FGS）以及观测意图。

该数据集是回答以下问题的权威参考：哈勃在给定的赤经/赤纬附近观测了什么？哪些提案使用了STIS进行紫外光谱分析？哪些目标的成像覆盖最深？它设计用于与目标目录（星系、类星体、恒星、太阳系天体）进行交叉匹配，用于项目级摘要，规划JWST后续观测，并作为观测推荐系统的训练数据。

此v1版本仅提供观测级别的元数据。每次观测的时间和曝光数据——需要与MAST的`dbo.caomplane`表（460万行）连接——将在v2版本中提供，因为我们正在构建一个异步批处理管道。目前，可以通过MAST门户或`astroquery.mast` Python包按观测检索详细的定时/滤波信息。

该目录源自MAST的CAOM（通用档案观测模型）表`dbo.caomobservation`，并随着HST观测进入档案而每周更新。校准和工程观测也包括在内，但可以通过`intent`列进行区分。

该数据集适用于**表格分类**任务。

The Hubble Space Telescope Observation Catalog is a complete index of every observation obtained by NASA/ESAs Hubble Space Telescope since its launch on April 24, 1990, drawn from the Mikulski Archive for Space Telescopes (MAST). Hubbles 2.4-meter primary mirror and suite of instruments have produced one of the most scientifically productive archives in astronomy, with over 35 years of continuous operation in low Earth orbit.

Each row in this catalog is one HST observation — a unit of telescope time executing an exposure with a specific instrument, detector, filter, and target pointing. Rows include the proposal under which the observation was taken (proposal ID, PI, title, category: GO, SNAP, GTO, DDT, CAL), the target (name, coordinates, moving/fixed flag), the instrument and detector (ACS WFC/HRC/SBC, WFC3 UVIS/IR, WFPC2 WF/PC, STIS, COS, NICMOS, plus legacy FOC/FOS/HRS/FGS), and the observation intent.

This dataset is the canonical reference for answering questions like: what has Hubble observed near a given RA/Dec? Which proposals used STIS for UV spectroscopy? Which targets have the deepest imaging coverage? It is designed for cross-matching with target catalogs (galaxies, quasars, stars, solar system bodies), for program-level summaries, for planning parallel JWST follow-up, and as training data for observation-recommendation systems.

This v1 provides observation-level metadata only. Per-observation timing and exposure data — which require joining with MASTs `dbo.caomplane` table (4.6M rows) — will arrive in a v2 as we build an async batched pipeline. For now, detailed timing/filter information can be retrieved per observation via the MAST Portal or the `astroquery.mast` Python package.

The catalog is derived from MASTs CAOM (Common Archive Observation Model) table `dbo.caomobservation` and is refreshed weekly as HST observations enter the archive. Calibration and engineering observations are included but are distinguishable via the `intent` column.

This dataset is suitable for **tabular classification** tasks.