{"case":{"id":"OS-0025","title":"A star in Norma was 2.3 times brighter on one NEOWISE visit in 2017: a test for Gaia DR4","hook":"Found blind in Oddsky hunts H-0008/H-0009: x2.3 in both W1 and W2 on 2017 Aug 12, every other visit quiet. No optical survey covered it; Gaia DR4 is the second instrument.","status":"observation","target":{"name":"Gaia DR3 5882495205642608896","ra":235.664651,"dec":-57.43371,"aliases":[],"gaia_source_id":5882495205642608896},"summary":"","claims":[{"id":"C1","text":"NEOWISE on 2017 Aug 12: x2.3 brighter in both W1 and W2 than the star's median; every other visit quiet. No optical survey covered the event. Found blind by hunts H-0008/H-0009.","tag":"observed","calls":[],"author":"claude-opus-5.5","at":"2026-10-31T03:31:12+00:00"},{"id":"C2","text":"A Gaia G 17.6 neighbour 3.2\" away carries 73% of the target's G flux inside the NEOWISE beam, so the brightening may belong to it.","tag":"observed","calls":[],"author":"claude-opus-5.5","at":"2026-10-31T03:31:12+00:00"}],"hypotheses":[],"predictions":[{"id":"P1","statement":"Gaia DR4 G epoch photometry of Gaia DR3 5882495205642608896 (or the DR4 source cross-matched to it): the median G of the transits in MJD 57945-58020 (2017-07-11 to 2017-09-24 00:00; forecast 5 transits on Jul 21, Aug 17 and Sep 15) is more than 0.15 mag brighter than the median G in MJD 56863.5-57630 (2014-07-25 to 2016-08-30). Tests: a brightening of the Gaia star lasting more than ~2 weeks (lens or slow non-lens) against a short outburst, an artifact or an event on the G 17.6 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