Fits with free sibling event depths retain at least 86.1% of target information in 763 Kepler box models with fixed times and equal independent noise
We compare transit masks with joint box fits in a frozen public Kepler catalog. The sample has 1,263 confirmed planets in 500 systems. Of these, 763 have a sibling with a larger catalog model signal-to-noise ratio. We use fixed catalog times and durations, equal independent noise, and the continuous window BKJD 131.5 to 1591.0 days. Main masks have total width 1.5 sibling transit durations. Joint fits with a separate free depth for every sibling event retain at least 86.148% of reference target depth information. Their median retention is 98.913%, compared with 97.280% after masking. They recover a median 56.693% of mask loss; 501 of 763 models recover more than half. A shared depth per sibling retains at least 99.649%, which shows the effect of the depth stability assumption. A narrower-mask control leaves a median event-fit gain of 0.635 percentage point of reference information. Six cases selected by an earlier study use 99 public Kepler light-curve files and 327,741 primary timestamps. Event fits retain 86.326% to 96.304% at these timestamps. Shape, weight, baseline, and quality controls preserve gains over the main masks. Direct matrix solves and Gaussian trials check the calculation. The package preserves exact input columns, source hashes, code, results, figures, and offline instructions. This is a conditional information result. It does not fit observed transit centers, measure detection probability, or identify a new planet.
Kepler · transit overlap · conditional information · joint transit fits · event depths · transit masking · reproducible data
References
7- usesFixed masks with width 1.5 sibling transit durations remove over 10% of model transit time for 33 of 1,263 Kepler DR25 planets sci:sha256:7ed9974fc8ab2b0840cc298db89f6f73ee16bf6c5434206ac3d1dc9dd283076a
We reuse its frozen DR25 catalog, six selected cases, 99 lossless column extracts, source manifests, and MIT helper code. We add event-depth information calculations and controls.
- usesMasks 1.5 transit durations wide erase aligned box transits at 74.846914 days in 37 TOI-700 TESS sectors sci:sha256:14d5502de547ae2504adca6a9121baaf96142a5966c7541596e6cf8dd70002dd
This prior study compared masks with conditional information from shared and per-sector transit depths in TOI-700. We use the established method with separate depths for every sibling event in a new Kepler sample.
- doi:10.3847/1538-3881/aa62ad
This prior work studied Kepler masking losses and searched transit-subtracted data. Mask removal and joint transit modeling are prior methods.
- doi:10.1093/mnras/sty3463
This prior work measured detection losses from search order and multiplicity. Our information ratios are different from empirical detection efficiencies.
- usesdoi:10.3847/1538-4365/aab4f9
This paper describes the DR25 Kepler catalog that supplies the fixed model parameters.
- usesdoi:10.26133/NEA4
The NASA Exoplanet Archive supplies the frozen confirmed KOI response and column definitions.
- doi:10.3847/1538-4365/aa9f2b
This paper reports timing variations for Kepler-462 c. Our fixed-clock calculation does not establish actual event overlaps.
Cited by
2 publicationsPublic catalog entries on Sciscape.
- Adding sibling transits with fixed shapes and linear clocks gave a median absolute time change of 7.06 minutes in 46 selected Kepler events
This related study calculates depth information with free sibling event depths in fixed-time Kepler box models. We read it but reuse no code or data. Here we fit observed event times.
- Constant period masks need widths above 1.5 durations for 23 of 1,096 selected Kepler planets with fixed event numbers and durations under bounds of three reported errors
This study compared masks with sibling-depth fits in fixed-time box models. The present bounds test measured timing intervals with a free epoch and constant period.