GET nph-nstedAPI

caltech.edu:nasa-exoplanet-archive-api

Summary: Query astronomical catalog data
Operation ID: queryCatalog
Auth: unknown
Description

Query the NASA Exoplanet Archive tables including mission stars and exoplanet catalogs. Supports column selection, filtering with SQL-like WHERE clauses, sorting, and cone searches.

Parameters (8)

dec (number, query, optional)

Declination in degrees for cone search (requires ra and radius)

format (string, query, optional, default: csv)

Response format

Constraints: {'enum': ['json', 'csv', 'ipac', 'ascii', 'bar', 'pipe', 'votable', 'xml']}

order (string, query, optional)

Column to sort by. Append 'desc' for descending order

ra (number, query, optional)

Right Ascension in degrees for cone search (requires dec and radius)

radius (string, query, optional)

Search radius with units: 'degrees', 'minutes', or 'arcseconds' (requires ra and dec)

select (string, query, optional)

Comma-separated list of columns to return, or '*' for all columns

table (string, query, required)

Catalog table to query

Constraints: {'enum': ['missionstars', 'mission_exocat']}

where (string, query, optional)

SQL-like WHERE clause for filtering rows

Examples (5)

TitleTypeURLAction
Query Exoplanet Archive Tables openapi-spec https://exoplanetarchive.ipac.caltech.edu/cgi-bin/nstedAPI/nph-nstedAPI?where=koi_disposition like 'CONFIRMED'&order=koi_period desc&radius=1 degree
Query exoplanet data openapi-spec https://exoplanetarchive.ipac.caltech.edu/cgi-bin/nstedAPI/nph-nstedAPI?where=koi_disposition like 'CANDIDATE' and koi_period>300
Query exoplanet data probe-gate https://exoplanetarchive.ipac.caltech.edu/cgi-bin/nstedAPI/nph-nstedAPI?select=defaults&where=koi_disposition+like+%27CANDIDATE%27+and+koi_period%3E300&format=csv
Query astronomical catalog data openapi-spec https://exoplanetarchive.ipac.caltech.edu/cgi-bin/nstedAPI/nph-nstedAPI?select=ra,dec,hd_name,st_dist&where=st_dist < 10&order=ra desc&ra=0.5&dec=27.0&radius=1 degrees
Query astronomical catalog data probe-gate https://exoplanetarchive.ipac.caltech.edu/cgi-bin/nstedAPI/nph-nstedAPI?select=ra%2Cdec%2Chd_name%2Cst_dist&where=st_dist+%3C+10&order=ra+desc&format=csv&ra=0.5&dec=27.0&radius=1+degrees

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-03-23 10:31:15.614501 200 758ms
2026-03-23 10:25:07.942330 200 724ms
2026-03-23 10:21:42.503079 200 700ms
2026-03-23 09:25:56.960423 200 703ms
2026-03-23 09:02:55.498897 200 786ms