FAILURE MAP

Understand the failure.
Verify the repair.

Small, reproducible software failures. The broken implementation, the fix that didn’t work, and the one that passed—preserved together.

Explore the cases ↓How results are verified ↗
100840Executable case variants
20168Distinct failure mechanisms
302520Executed implementations
20168Open-access cases

WHAT THE ARCHIVE CONTAINS

100840 executable cases. 20168 are open.

Every case records the implementation that fails, the fix that did not work, and the repair that passed its checks—with recorded outputs and source hashes. This release adds 100840 cases across 20168 failure mechanisms and 254 domains.

The open tier gives you the failure and the unsuccessful fix for one case in every mechanism. The remaining 80672 cases, 5 variants per mechanism, are member-only: the verified repair, its recorded checks, and the full fixture suite are held in the member archive. Read the methodology ↗

A RECORD OF WHAT WENT WRONG

Browse the archive / 100840

Python · Standard library
REFERENCEFAILURE MECHANISMDOMAINACCESS
FA-55901

Nested sky cell address: Nested sky child address uses binary rather than quadtree stride · case 01

The adapter reports an incorrect child local while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55902

Nested sky cell address: Nested sky child address uses binary rather than quadtree stride · case 02

The adapter reports an incorrect child local while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55903

Nested sky cell address: Nested sky child address uses binary rather than quadtree stride · case 03

The adapter reports an incorrect child local while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55904

Nested sky cell address: Nested sky child address uses binary rather than quadtree stride · case 04

The adapter reports an incorrect child local while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55905

Nested sky cell address: Nested sky child address uses binary rather than quadtree stride · case 05

The adapter reports an incorrect child local while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55906

Nested sky cell address: Nested sky descendant range expands by a linear or binary scale · case 01

The adapter reports an incorrect descendant first while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55907

Nested sky cell address: Nested sky descendant range expands by a linear or binary scale · case 02

The adapter reports an incorrect descendant first while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55908

Nested sky cell address: Nested sky descendant range expands by a linear or binary scale · case 03

The adapter reports an incorrect descendant first while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55909

Nested sky cell address: Nested sky descendant range expands by a linear or binary scale · case 04

The adapter reports an incorrect descendant first while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55910

Nested sky cell address: Nested sky descendant range expands by a linear or binary scale · case 05

The adapter reports an incorrect descendant first while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55911

Nested sky cell address: Nested sky half-open descendant stop is emitted as an inclusive endpoint · case 01

The adapter reports an incorrect descendant stop while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55912

Nested sky cell address: Nested sky half-open descendant stop is emitted as an inclusive endpoint · case 02

The adapter reports an incorrect descendant stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55913

Nested sky cell address: Nested sky half-open descendant stop is emitted as an inclusive endpoint · case 03

The adapter reports an incorrect descendant stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55914

Nested sky cell address: Nested sky half-open descendant stop is emitted as an inclusive endpoint · case 04

The adapter reports an incorrect descendant stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55915

Nested sky cell address: Nested sky half-open descendant stop is emitted as an inclusive endpoint · case 05

The adapter reports an incorrect descendant stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55916

Nested sky cell address: All-sky nested pixel count omits the base-face multiplicity · case 01

The adapter reports an incorrect face count while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55917

Nested sky cell address: All-sky nested pixel count omits the base-face multiplicity · case 02

The adapter reports an incorrect face count while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55918

Nested sky cell address: All-sky nested pixel count omits the base-face multiplicity · case 03

The adapter reports an incorrect face count while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55919

Nested sky cell address: All-sky nested pixel count omits the base-face multiplicity · case 04

The adapter reports an incorrect face count while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55920

Nested sky cell address: All-sky nested pixel count omits the base-face multiplicity · case 05

The adapter reports an incorrect face count while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55921

Multiorder sky cell encoding: Multiorder sky encoding uses the wrong order-band prefix · case 01

The adapter reports an incorrect uniq while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55922

Multiorder sky cell encoding: Multiorder sky encoding uses the wrong order-band prefix · case 02

The adapter reports an incorrect uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55923

Multiorder sky cell encoding: Multiorder sky encoding uses the wrong order-band prefix · case 03

The adapter reports an incorrect uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55924

Multiorder sky cell encoding: Multiorder sky encoding uses the wrong order-band prefix · case 04

The adapter reports an incorrect uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55925

Multiorder sky cell encoding: Multiorder sky encoding uses the wrong order-band prefix · case 05

The adapter reports an incorrect uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55926

Multiorder sky cell encoding: Multiorder order-band origin is confused with all-sky pixel count · case 01

The adapter reports an incorrect band start while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55927

Multiorder sky cell encoding: Multiorder order-band origin is confused with all-sky pixel count · case 02

The adapter reports an incorrect band start while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55928

Multiorder sky cell encoding: Multiorder order-band origin is confused with all-sky pixel count · case 03

The adapter reports an incorrect band start while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55929

Multiorder sky cell encoding: Multiorder order-band origin is confused with all-sky pixel count · case 04

The adapter reports an incorrect band start while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55930

Multiorder sky cell encoding: Multiorder order-band origin is confused with all-sky pixel count · case 05

The adapter reports an incorrect band start while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55931

Multiorder sky cell encoding: Nested sky cell area scales linearly with resolution instead of quadratically · case 01

The adapter reports an incorrect cell area while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55932

Multiorder sky cell encoding: Nested sky cell area scales linearly with resolution instead of quadratically · case 02

The adapter reports an incorrect cell area while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55933

Multiorder sky cell encoding: Nested sky cell area scales linearly with resolution instead of quadratically · case 03

The adapter reports an incorrect cell area while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55934

Multiorder sky cell encoding: Nested sky cell area scales linearly with resolution instead of quadratically · case 04

The adapter reports an incorrect cell area while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55935

Multiorder sky cell encoding: Nested sky cell area scales linearly with resolution instead of quadratically · case 05

The adapter reports an incorrect cell area while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55936

Multiorder sky cell encoding: Sky probability density is exported as cell probability without area conversion · case 01

The adapter reports an incorrect cell mass while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55937

Multiorder sky cell encoding: Sky probability density is exported as cell probability without area conversion · case 02

The adapter reports an incorrect cell mass while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55938

Multiorder sky cell encoding: Sky probability density is exported as cell probability without area conversion · case 03

The adapter reports an incorrect cell mass while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55939

Multiorder sky cell encoding: Sky probability density is exported as cell probability without area conversion · case 04

The adapter reports an incorrect cell mass while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55940

Multiorder sky cell encoding: Sky probability density is exported as cell probability without area conversion · case 05

The adapter reports an incorrect cell mass while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55941

Multiorder sky cell encoding: Multiorder child encoding appends a child digit to the wrong payload · case 01

The adapter reports an incorrect child uniq while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55942

Multiorder sky cell encoding: Multiorder child encoding appends a child digit to the wrong payload · case 02

The adapter reports an incorrect child uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55943

Multiorder sky cell encoding: Multiorder child encoding appends a child digit to the wrong payload · case 03

The adapter reports an incorrect child uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55944

Multiorder sky cell encoding: Multiorder child encoding appends a child digit to the wrong payload · case 04

The adapter reports an incorrect child uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55945

Multiorder sky cell encoding: Multiorder child encoding appends a child digit to the wrong payload · case 05

The adapter reports an incorrect child uniq while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55946

Multiorder sky cell encoding: Multiorder order-band exclusive endpoint is mistaken for pixel payload length · case 01

The adapter reports an incorrect order stop while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55947

Multiorder sky cell encoding: Multiorder order-band exclusive endpoint is mistaken for pixel payload length · case 02

The adapter reports an incorrect order stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55948

Multiorder sky cell encoding: Multiorder order-band exclusive endpoint is mistaken for pixel payload length · case 03

The adapter reports an incorrect order stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55949

Multiorder sky cell encoding: Multiorder order-band exclusive endpoint is mistaken for pixel payload length · case 04

The adapter reports an incorrect order stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55950

Multiorder sky cell encoding: Multiorder order-band exclusive endpoint is mistaken for pixel payload length · case 05

The adapter reports an incorrect order stop while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55951

Fits split time reference: FITS split time reference loses fractional reference or TIMEZERO · case 01

The adapter reports an incorrect absolute day while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55952

Fits split time reference: FITS split time reference loses fractional reference or TIMEZERO · case 02

The adapter reports an incorrect absolute day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55953

Fits split time reference: FITS split time reference loses fractional reference or TIMEZERO · case 03

The adapter reports an incorrect absolute day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55954

Fits split time reference: FITS split time reference loses fractional reference or TIMEZERO · case 04

The adapter reports an incorrect absolute day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55955

Fits split time reference: FITS split time reference loses fractional reference or TIMEZERO · case 05

The adapter reports an incorrect absolute day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55956

Fits split time reference: FITS TIMEZERO is added after rather than before time-unit conversion · case 01

The adapter reports an incorrect elapsed seconds while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55957

Fits split time reference: FITS TIMEZERO is added after rather than before time-unit conversion · case 02

The adapter reports an incorrect elapsed seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55958

Fits split time reference: FITS TIMEZERO is added after rather than before time-unit conversion · case 03

The adapter reports an incorrect elapsed seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55959

Fits split time reference: FITS TIMEZERO is added after rather than before time-unit conversion · case 04

The adapter reports an incorrect elapsed seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55960

Fits split time reference: FITS TIMEZERO is added after rather than before time-unit conversion · case 05

The adapter reports an incorrect elapsed seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55961

Fits split time reference: Fractional reference day is interpreted as a time-column unit · case 01

The adapter reports an incorrect reference seconds while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55962

Fits split time reference: Fractional reference day is interpreted as a time-column unit · case 02

The adapter reports an incorrect reference seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55963

Fits split time reference: Fractional reference day is interpreted as a time-column unit · case 03

The adapter reports an incorrect reference seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55964

Fits split time reference: Fractional reference day is interpreted as a time-column unit · case 04

The adapter reports an incorrect reference seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55965

Fits split time reference: Fractional reference day is interpreted as a time-column unit · case 05

The adapter reports an incorrect reference seconds while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55966

Fits split time reference: FITS time zero offset is reported in seconds while labeled days · case 01

The adapter reports an incorrect zero day offset while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55967

Fits split time reference: FITS time zero offset is reported in seconds while labeled days · case 02

The adapter reports an incorrect zero day offset while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55968

Fits split time reference: FITS time zero offset is reported in seconds while labeled days · case 03

The adapter reports an incorrect zero day offset while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55969

Fits split time reference: FITS time zero offset is reported in seconds while labeled days · case 04

The adapter reports an incorrect zero day offset while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55970

Fits split time reference: FITS time zero offset is reported in seconds while labeled days · case 05

The adapter reports an incorrect zero day offset while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55971

Fits split time reference: Reference-relative astronomical time accidentally includes the absolute reference epoch · case 01

The adapter reports an incorrect relative day while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55972

Fits split time reference: Reference-relative astronomical time accidentally includes the absolute reference epoch · case 02

The adapter reports an incorrect relative day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55973

Fits split time reference: Reference-relative astronomical time accidentally includes the absolute reference epoch · case 03

The adapter reports an incorrect relative day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55974

Fits split time reference: Reference-relative astronomical time accidentally includes the absolute reference epoch · case 04

The adapter reports an incorrect relative day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55975

Fits split time reference: Reference-relative astronomical time accidentally includes the absolute reference epoch · case 05

The adapter reports an incorrect relative day while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55976

Fits split time reference: Absolute-day import subtracts TIMEZERO in seconds instead of column units · case 01

The adapter reports an incorrect inverse tick while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55977

Fits split time reference: Absolute-day import subtracts TIMEZERO in seconds instead of column units · case 02

The adapter reports an incorrect inverse tick while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55978

Fits split time reference: Absolute-day import subtracts TIMEZERO in seconds instead of column units · case 03

The adapter reports an incorrect inverse tick while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55979

Fits split time reference: Absolute-day import subtracts TIMEZERO in seconds instead of column units · case 04

The adapter reports an incorrect inverse tick while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55980

Fits split time reference: Absolute-day import subtracts TIMEZERO in seconds instead of column units · case 05

The adapter reports an incorrect inverse tick while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55981

Barycentric arrival corrections: Barycentric geometric delay omits source-direction projection · case 01

The adapter reports an incorrect roemer delay while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55982

Barycentric arrival corrections: Barycentric geometric delay omits source-direction projection · case 02

The adapter reports an incorrect roemer delay while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55983

Barycentric arrival corrections: Barycentric geometric delay omits source-direction projection · case 03

The adapter reports an incorrect roemer delay while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55984

Barycentric arrival corrections: Barycentric geometric delay omits source-direction projection · case 04

The adapter reports an incorrect roemer delay while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55985

Barycentric arrival corrections: Barycentric geometric delay omits source-direction projection · case 05

The adapter reports an incorrect roemer delay while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55986

Barycentric arrival corrections: Barycentric timestamp drops supplied nongeometric propagation terms · case 01

The adapter reports an incorrect arrival while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55987

Barycentric arrival corrections: Barycentric timestamp drops supplied nongeometric propagation terms · case 02

The adapter reports an incorrect arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55988

Barycentric arrival corrections: Barycentric timestamp drops supplied nongeometric propagation terms · case 03

The adapter reports an incorrect arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55989

Barycentric arrival corrections: Barycentric timestamp drops supplied nongeometric propagation terms · case 04

The adapter reports an incorrect arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55990

Barycentric arrival corrections: Barycentric timestamp drops supplied nongeometric propagation terms · case 05

The adapter reports an incorrect arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55991

Barycentric arrival corrections: Topocentric residual delay fails to subtract geocentric position already corrected · case 01

The adapter reports an incorrect topocentric residual while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55992

Barycentric arrival corrections: Topocentric residual delay fails to subtract geocentric position already corrected · case 02

The adapter reports an incorrect topocentric residual while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55993

Barycentric arrival corrections: Topocentric residual delay fails to subtract geocentric position already corrected · case 03

The adapter reports an incorrect topocentric residual while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55994

Barycentric arrival corrections: Topocentric residual delay fails to subtract geocentric position already corrected · case 04

The adapter reports an incorrect topocentric residual while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55995

Barycentric arrival corrections: Topocentric residual delay fails to subtract geocentric position already corrected · case 05

The adapter reports an incorrect topocentric residual while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55996

Barycentric arrival corrections: Geocentric timing request accidentally retains observatory position · case 01

The adapter reports an incorrect geocentric arrival while other fields remain valid.

Astronomical coordinate conventions● Open access↗
FA-55997

Barycentric arrival corrections: Geocentric timing request accidentally retains observatory position · case 02

The adapter reports an incorrect geocentric arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55998

Barycentric arrival corrections: Geocentric timing request accidentally retains observatory position · case 03

The adapter reports an incorrect geocentric arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-55999

Barycentric arrival corrections: Geocentric timing request accidentally retains observatory position · case 04

The adapter reports an incorrect geocentric arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗
FA-56000

Barycentric arrival corrections: Geocentric timing request accidentally retains observatory position · case 05

The adapter reports an incorrect geocentric arrival while other fields remain valid.

Astronomical coordinate conventions◈ Members↗

INSPECTABLE BY DESIGN

Every result has a runnable source.

Runnable implementations with recorded outputs, source hashes, and explicit contracts. Related variants share a failure mechanism and belong together in evaluation splits.

Read the methodology ↗