juliensimon/jwst-observations

JWST观测目录是NASA/ESA/CSA詹姆斯·韦伯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（MAST）。詹姆斯·韦伯太空望远镜于2021年12月25日发射，2022年中期投入使用，是有史以来最强大的红外空间天文台，运行在太阳-地球L2拉格朗日点，配备6.5米分段主镜和四种科学仪器：NIRCam、NIRSpec、NIRISS、MIRI以及FGS精细导星传感器。

目录中的每一行代表一次JWST观测——望远镜时间的一个单位，执行具有特定仪器、滤光片、目标和指向的单一曝光序列。行包括观测的提案（提案ID、PI、标题、类别：GO、GTO、ERS或DDT）、目标（名称、坐标、类型、移动/固定标志、河外目标的红移）、仪器和观测模式（成像、狭缝/无狭缝光谱、积分视场、日冕观测）、时间（开始/结束MJD和ISO日期、总曝光时间）、波长覆盖（微米）、使用的滤光片、生成的CAOM数据类型以及可用的最大校准级别。

该数据集是回答以下问题的权威来源：JWST在给定的赤经/赤纬附近观测到了什么？哪些提案使用了MIRI日冕仪？特定目标上花费了多少曝光时间？独占访问数据集何时公开？它设计用于与目标目录（类星体、系外行星、星系、太阳系天体）进行交叉匹配，用于项目级摘要，以及规划跨设施后续观测。它与该集合中的钱德拉、eROSITA、费米和其他空间望远镜目录相辅相成，提供了现代高能到红外空间天文台舰队的统一表格视图。

该目录来源于MAST的CAOM（通用档案观测模型）表——特别是`dbo.caomobservation`与`dbo.caomplane`的连接——并随着JWST管道产品流入档案而每周更新。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 JWST Observation Catalog is a complete index of every observation obtained by NASA/ESA/CSAs James Webb Space Telescope, drawn from the Mikulski Archive for Space Telescopes (MAST). Launched on December 25, 2021 and commissioned in mid-2022, JWST is the most powerful infrared space observatory ever built, operating at the Sun–Earth L2 Lagrange point with a 6.5-meter segmented primary mirror and four science instruments: NIRCam, NIRSpec, NIRISS, MIRI, and the FGS fine guidance sensor.

Each row in this catalog is one JWST observation — a unit of telescope time executing a single exposure sequence with a specific instrument, filter, target, and pointing. Rows include the proposal under which the observation was taken (proposal ID, PI, title, category: GO, GTO, ERS, or DDT), the target (name, coordinates, type, moving/fixed flag, redshift for extragalactic targets), the instrument and observing mode (imaging, slit/slitless spectroscopy, integral field, coronagraphy), timing (start/end MJD and ISO date, total on-source exposure), wavelength coverage (micrometers), filters used, the CAOM data product types produced, and the maximum calibration level available.

This dataset is the canonical source for answering questions like: what has JWST observed near a given RA/Dec? What proposals used the MIRI coronagraph? How much exposure time has been spent on a particular target? When does an exclusive-access dataset become public? It is designed for cross-matching with target catalogs (quasars, exoplanets, galaxies, solar system bodies), for program-level summaries, and for planning cross-facility follow-up observations. It complements the Chandra, eROSITA, Fermi, and other space telescope catalogs in this collection, giving a uniform tabular view of the modern high-energy-to-infrared space observatory fleet.

The catalog is derived from MASTs CAOM (Common Archive Observation Model) tables — specifically `dbo.caomobservation` joined with `dbo.caomplane` — and is refreshed weekly as JWST pipeline products flow through the archive. Calibration and engineering observations are included but are distinguishable via the `intent` column.

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