instruments / chronology / derived/precision.txt · raw

derived/precision.txt. A research program Kieran shapes and a model (the "seat") writes down. "I" in these files is the seat unless a line is quoted as his. The first write-up explained the misses instead of counting them; Kieran's objection ("this is cyclic") is in the file, and so is the retraction. Snapshot of 2026-10-15 from the private repo; local addresses and paths scrubbed, nothing else changed.

SEEN OR COMPUTED? 353 pre-1470 records landing at their own count

  overall: {'both': 310, 'neither': 40, 'computed?': 3}
  edition_apparatus/compiled             {'both': 2}
  edition_apparatus/mixed                {'both': 13, 'neither': 2}
  own_era_converted/compiled             {'both': 10, 'neither': 1}
  own_era_converted/contemporary         {'both': 3, 'neither': 3}
  own_era_converted/near_contemporary    {'both': 1}
  own_heading/compiled                   {'both': 55, 'neither': 6, 'computed?': 1}
  own_heading/contemporary               {'both': 58, 'neither': 7}
  own_heading/contemporary_claimed       {'both': 4}
  own_heading/mixed                      {'both': 64, 'neither': 6, 'computed?': 2}
  own_heading/unknown                    {'both': 1}
  own_text/compiled                      {'both': 8, 'neither': 3}
  own_text/contemporary                  {'both': 52, 'neither': 8}
  own_text/contemporary_claimed          {'both': 1}
  own_text/mixed                         {'both': 23, 'neither': 3}
  received_placement/contemporary        {'both': 6}
  received_placement/mixed               {'both': 9, 'neither': 1}

  records that discriminate (seen / computed?):
    both (raw seen)        annales_besuenses   878 sun  via hr  ΔT_lib +0.65 h  [own_heading/compiled]  '978. Tercio Kal. Novembris eclipsis solis / feria circa horam diei oct'
    both (raw seen)        annales_blandinienses  1023 sun  via hr  ΔT_lib +0.40 h  [own_heading/mixed]  '1023. Hoc anno contigit eclipsis solis 9. Kal. Febr. hora 6.'
    computed?              annales_elnonenses_minores  1033 sun  via hr  ΔT_lib +0.39 h  [own_heading/compiled]  '1033. Eclipsis solis fuit 3. Kal. Iul. luna 27. circa octavam horam. .'
    both (raw seen)        annales_magdeburgenses  1124 sun  via hr  ΔT_lib +0.28 h  [own_heading/compiled]  '1124, 19. Fridericus comes de Arnesberech moritur. Eclyp: ... s solis '
    both (raw seen)        annales_s_benigni_divionensis   878 sun  via hr  ΔT_lib +0.65 h  [own_heading/mixed]  '878. 4. Kal. Novembris eclypsis" solis 4. feria circa oram diei octa- '
    computed?              annales_s_columbae_senonensis~own_heading   840 sun  via hr  ΔT_lib +0.73 h  [own_heading/mixed]  '040. Hludovicus inperator obiit, et eclypsis solis facta est 4. feria '
    computed?              annales_sangallenses_maiores   968 sun  via hr  ΔT_lib +0.49 h  [own_heading/mixed]  '968. (970.) Hoc anno eclypsis solis facta est 11. Kal. Ianuar. luna 98'
    both (raw seen)        asc              800 moon via hr  ΔT_lib +0.82 h  [own_text/mixed]  'A.D. 800. This year was the moon eclipsed, at eight in the evening, on'
    both (raw seen)        bede             733 sun  via hr  ΔT_lib +0.98 h  [own_text/compiled]  '] In the year 733, there was an eclipse of the sun on thd 14th day of '
    both (raw seen)        chron_conimbricense_iv  1079 sun  via hr  ΔT_lib +0.33 h  [own_era_converted/compiled]  'Era MCXVII. Kalendas Julii hora VI. obscuratus tst Sol, & stetit ipsa '
    both (raw seen)        florence         540 sun  via hr  ΔT_lib +1.48 h  [own_heading/compiled]  '] There was an eclipse of the sun on the twelfth of the calends of Jul'
    both (raw seen)        frankish         820 moon via hr  ΔT_lib +0.77 h  [own_heading/contemporary]  'ARF DCCCXX: Luna defecit VIII. Kal. Decembr. hora noctis secunda'
    both (raw seen)        hydatius         458 sun  via hr  ΔT_lib +1.70 h  [received_placement/mixed]  ''
    both (raw seen)        hydatius         464 sun  via hr  ΔT_lib +1.68 h  [received_placement/mixed]  ''
    both (raw seen)        irish            664 sun  via hr  ΔT_lib +1.15 h  [edition_apparatus/mixed]  'U664.1 Darkness on the Kalends 1st of May at the ninth hour, and in th'
    both (raw seen)        irish            921 moon via hr  ΔT_lib +0.57 h  [edition_apparatus/mixed]  'U921.9 A lunar eclipse on the third feria, the fifteenth of the Kalend'
    both (raw seen)        leo_deacon       968 sun  via hr  ΔT_lib +0.49 h  [received_placement/contemporary]  ''
    both (raw seen)        monachus_sazavensis   990 sun  via hr  ΔT_lib +0.45 h  [own_heading/mixed]  '990. Ecli| solis faeta est 12. Kal. Novembr ... , quinta hora diei,'
    both (raw seen)        pliny             59 sun  via hr  ΔT_lib +2.78 h  [received_placement/contemporary]  ''
    both (raw seen)        regiomontanus   1462 moon via hr  ΔT_lib +0.07 h  [own_text/contemporary]  ''
    both (raw seen)        theophanes       693 sun  via hr  ΔT_lib +1.07 h  [own_era_converted/compiled]  ''
    both (raw seen)        theophanes       760 sun  via hr  ΔT_lib +0.91 h  [own_era_converted/compiled]  ''

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