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Kolasinski’s paper on the effects of space radiation on electronic microcircuits (NASA/SDIO workshop proceedings, May 1989) states that single-event upsets appear in computer memories as unexplained bit flips, reports upset rates observed in memories in orbit, and describes efforts to harden payload designs and develop devices resistant to single-event effects. Copy claim link
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Machine-checked, not reviewed by an editor Stated in source Supported
Supporting evidence: primary · 1 source
Date 1989-05 · publication Role Earliest located Register (kind of text) Nonfiction Scope and limits Earliest located among the texts found by the pack’s searches of 2026-10-28 and the cross-family check’s bounded search of 2026-10-29/30, which looked at pre-2024 literature on radiation in space electronics; not a claim that no earlier text exists. The criterion is applied as worded: radiation in orbit disrupts computing hardware (here spacecraft memories and microcircuits), with hardening as the response. The paper concerns spacecraft electronics, not orbital data centres, and argues nothing about placing compute in orbit; the criterion does not require that. It replaces the Lumen Orbit white paper (2024) as earliest located, a correction recorded on the collection page.
The evidence 03 primary source Supports the claim
Effects of space radiation on electronic microcircuits ↗ NASA Langley Research Center, NASA/SDIO Space Environmental Effects on Materials Workshop, Part 2 (NASA Technical Reports Server, 19890014178) · 1989-05
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Source excerpt “In a computer memory, SEUs manifest themselves as unexplained bit flips.” Location in source PDF p. 2 (printed p. 384), introduction
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors W. A. Kolasinski Version PDF of the paper (printed pp. 383–389) from NASA’s Technical Reports Server, retrieved at admission on 2026-10-30 (SHA-256 b82cb50dea59c0f186b2a994e8caed4fa38ac35d8abad5153792eff8ad324795, the same bytes the cross-family check retrieved on 2026-10-29). The server’s record gives the proceedings’ publication date as 1 May 1989, a month-level catalogue date; the paper prints no date. The text layer is from a scan. Canonical address Open the canonical source ↗ Accessed 2026-10-30 Language English (en) Attribution W. A. Kolasinski, “Effects of space radiation on electronic microcircuits”, 1989-05. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Added at the admission of the compute, power and orbit pack (research/compute-power-orbit). Located by the cross-family check (earlier-text search, OC7) and read at admission. The quotation (11 words) matched a direct retrieval of 2026-10-30 (SHA-256 b82cb50dea59c0f186b2a994e8caed4fa38ac35d8abad5153792eff8ad324795). Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms. No human editorial review. primary source Supports the claim
Effects of space radiation on electronic microcircuits ↗ NASA Langley Research Center, NASA/SDIO Space Environmental Effects on Materials Workshop, Part 2 (NASA Technical Reports Server, 19890014178) · 1989-05
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Source excerpt “the data all seem to cluster around an upset rate of approximately 1 upset per day for a 100,000-bit memory” Location in source PDF p. 6 (printed p. 388), “Experience in orbit”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors W. A. Kolasinski Version PDF of the paper (printed pp. 383–389) from NASA’s Technical Reports Server, retrieved at admission on 2026-10-30 (SHA-256 b82cb50dea59c0f186b2a994e8caed4fa38ac35d8abad5153792eff8ad324795, the same bytes the cross-family check retrieved on 2026-10-29). The server’s record gives the proceedings’ publication date as 1 May 1989, a month-level catalogue date; the paper prints no date. The text layer is from a scan. Canonical address Open the canonical source ↗ Accessed 2026-10-30 Language English (en) Attribution W. A. Kolasinski, “Effects of space radiation on electronic microcircuits”, 1989-05. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Added at the admission of the compute, power and orbit pack (research/compute-power-orbit). Upset rates observed on spacecraft, which the paper reports under “Experience in orbit”. The quotation (20 words) matched a direct retrieval of 2026-10-30 (SHA-256 b82cb50dea59c0f186b2a994e8caed4fa38ac35d8abad5153792eff8ad324795). Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms. No human editorial review. primary source Supports the claim
Effects of space radiation on electronic microcircuits ↗ NASA Langley Research Center, NASA/SDIO Space Environmental Effects on Materials Workshop, Part 2 (NASA Technical Reports Server, 19890014178) · 1989-05
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Cite the original source Cite the original document, not Selekoa. Check these details against it.
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Source excerpt “to harden existing payload designs wherever feasible, and to develop new device technologies resistant to single event effects” Location in source PDF p. 6 (printed p. 388)
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-30
Source details and check notes Authors W. A. Kolasinski Version PDF of the paper (printed pp. 383–389) from NASA’s Technical Reports Server, retrieved at admission on 2026-10-30 (SHA-256 b82cb50dea59c0f186b2a994e8caed4fa38ac35d8abad5153792eff8ad324795, the same bytes the cross-family check retrieved on 2026-10-29). The server’s record gives the proceedings’ publication date as 1 May 1989, a month-level catalogue date; the paper prints no date. The text layer is from a scan. Canonical address Open the canonical source ↗ Accessed 2026-10-30 Language English (en) Attribution W. A. Kolasinski, “Effects of space radiation on electronic microcircuits”, 1989-05. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Added at the admission of the compute, power and orbit pack (research/compute-power-orbit). The responses the paper names: hardening and resistant devices. The quotation (18 words) matched a direct retrieval of 2026-10-30 (SHA-256 b82cb50dea59c0f186b2a994e8caed4fa38ac35d8abad5153792eff8ad324795). Matching ignored differences of whitespace, case, quotation marks, dashes and Unicode compatibility forms. No human editorial review. Status and meaning Editorial status. Not reviewed by an editor . An exploratory record that no editor has accepted. This status does not say whether a person has read any linked passage. Each evidence record above shows how it was checked.
Relation. A passage of the document meets the proposition’s criterion. The record documents what the text states, in its register (fiction and satire are labelled); it is not evidence that the proposition is true and implies no influence on or from another text.
Date. Publication date of the workshop proceedings in NASA’s Technical Reports Server record (May 1989); no day is printed.
Record ID cpo-orb-oc7-kolasinski-1989