Evidence · Tabby's star (KIC 8462852)

No dips to 0.5 per cent in the 2024 TESS sectors (81 and 82)

In TESS Sectors 81 and 82 (QLP detrended flux, 24 July to 20 August 2024) the deepest feature at 0.25-1 day durations is 0.12 per cent at SNR 4.2, with injection-recovery of 90-100 per cent for 0.5 per cent dips of 0.5-1 day, so the dip-free record now runs from July 2019 to August 2024 at that level.

Supported0

What it bears on 1 answer

The activity that produced the dips has ended or declined.

Still possible

FOR

Found by 1 run

Run	Measured	Result	Against	Decision	Date
Run	Deepest box-dip SNR and depth per sector; recovery fraction per depth and duration	{'S014': {'deepest_snr': 5.2, 'scatter_pct': 0.106, 'deepest_depth_pct': 0.09}, 'S015': {'centre_utc': '2019-09-03T14:55', 'centre_btjd': 1730.121, 'deepest_snr': 76.2, 'scatter_pct': 0.123, 'deepest_depth_pct': 1.11, 'duration_days_box': 0.5}, 'S041': {'deepest_snr': 4.6, 'scatter_pct': 0.107}, 'S054': {'deepest_snr': 6.3, 'scatter_pct': 0.125, 'deepest_depth_pct': 0.17}, 'S055': {'deepest_snr': 4.9, 'scatter_pct': 0.108}, 'S081': {'deepest_snr': 4.2, 'scatter_pct': 0.176, 'deepest_depth_pct': 0.12, 'sap_bkg_decorrelated_deepest_snr': 7.9}, 'S082': {'deepest_snr': 3.5, 'scatter_pct': 0.159, 'sap_bkg_decorrelated_deepest_snr': 6.4}, 'recovery_2day_and_longer': 'about 0', 'recovery_0.5pct_1day_quiet_sectors': '0.90-1.00'}	yang2026 no dips > 0.5 per cent 2019-2022 with 0.56-day window; Sectors 81-82 not analysed	Sectors 14, 41, 54, 55, 81 and 82 show no dip of 0.5 per cent or deeper at 0.25-1 day durations, with 90-100 per cent recovery at that depth; the record of no short dips extends to August 2024. Sector 15 holds a 1.11 per cent symmetric dip on 2019-09-03 that the published 0.56-day-window analysis removed. The search is blind to dips of 2 days and longer.

Cite it

Mysteries Department. (2026). No dips to 0.5 per cent in the 2024 TESS sectors (81 and 82) [Evidence EVD0DDYFG8VM2NN]. https://mysteriesdept.com/r/EVD0DDYFG8VM2NN

@misc{mysteriesdept_evd0ddyfg8vm2nn,
  title     = {No dips to 0.5 per cent in the 2024 TESS sectors (81 and 82)},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Evidence, catalog key EVD0DDYFG8VM2NN},
  url       = {https://mysteriesdept.com/r/EVD0DDYFG8VM2NN}
}