Independent Distant Object SurveyA public search notebook

An independent search of public Rubin alert data

Looking for small worlds.
Keeping a public record.

A notebook of our searches for trans-Neptunian objects and dwarf planets: what we linked, what we ruled out, and how we checked.

0curated new objects
66fields with recorded searches
43known designations recovered

No new objects yet

A linked candidate is a lead. Every discovery needs a multi-night linkage, non-detection test, JPL/MPC cross-check, image inspection and MPC acceptance.

Read the discovery criteria

From the notebook

2025 OO737: a known object two arcminutes from its prediction

Our search linked five Rubin detections on five nights across June–July 2026 (MJD 61217–61232), at about 46 AU with a radial rms of 0.05″. Initially labelled unknown, this is the known object 2025 OO737 about 2′ from its catalogue prediction, not a discovery.

Campaign logs

Sensitivity tests, field statistics and candidate history.

Sky map

Search coverage, recoveries and skipped fields.

Method

How the search works, and the limits of the evidence.