Evidence · HD 139139, the "Random Transiter"

The dips don't behave like a single telegraph pixel or follow the spacecraft's motion

The K2 dip depths are not consistent with one fixed amplitude, as a single random-telegraph pixel would give, and the dip times show no link to K2's 6-hour thruster cycle, its pointing, or its roll position.

Supported0

What it bears on 1 answer

The dips are an undiagnosed instrumental or data-processing effect in the K2 Campaign 15 data.

Still possible

AGAINST

Found by 1 run

Run	Measured	Result	Against	Decision	Date
Run	Chi2 of stacked 27-dip deficit vs 'real dimming' and 'bleed column only' (null covariance); depth chi2 vs one amplitude; timing KS/permutation p-values	{'pointing_p': [0.93, 0.96], 'arclength_p': 0.73, 'column_only': {'dof': 2, 'chi2': 0.55}, 'real_dimming': {'dof': 2, 'chi2': 1.03, 'depth_ppm': 211}, 'spot_level_p': 0.3, 'no_signal_chi2': 324, 'thruster_phase_p': 0.52, 'depth_chi2_rednoise': '124/26', 'depth_chi2_published_errors': '184/26'}	600 random non-dip epochs with the same procedure	Not a fixed-amplitude telegraph pixel and not tied to spacecraft motion; the pixels can't separate real dimming from a glitch confined to the saturated bleed column.

Cite it

Mysteries Department. (2026). The dips don't behave like a single telegraph pixel or follow the spacecraft's motion [Evidence EVD0DD2G555HMN8]. https://mysteriesdept.com/r/EVD0DD2G555HMN8

@misc{mysteriesdept_evd0dd2g555hmn8,
  title     = {The dips don't behave like a single telegraph pixel or follow the spacecraft's motion},
  author    = {{Mysteries Department}},
  year      = {2026},
  note      = {Evidence, catalog key EVD0DD2G555HMN8},
  url       = {https://mysteriesdept.com/r/EVD0DD2G555HMN8}
}