fix(sat): a frequency we shipped wrong can now be mended

"la lilacsat je le vois en DATA ???!" — and the LO-90 fix could not have reached
him. The satellite file is copied out on the first run and was the operator's
from then on, so the merge could only ADD birds, never repair one. LilacSat-2
went out with an APRS digipeater and no FM transponder, and that mistake had
become his data, permanently.

The merge now distinguishes three cases, and the middle one is the whole point:

  - a satellite he does not have is added;
  - one he has, UNCHANGED from the plan he was given, is replaced — he never
    edited it, so it is not his to keep: it is our data and ours was wrong;
  - one he EDITED is left exactly alone, and named in the log. A frequency
    somebody corrected by hand outranks anything shipped; they were on the air
    and we were not.

"Unchanged" is decided against a baseline — satellites.shipped.json, the plan
this station was last handed — so the comparison is with what THEY were given
rather than with whatever ships today. Their edits survive every future release,
not just the next one.

The first run after this has no baseline, and there an edit of theirs and a
mistake of ours are indistinguishable. The shipped plan wins, once, with the
whole file copied to satellites.json.bak first and every replacement named. The
safe-looking alternative was the wrong one: standing down would have written a
baseline recording their entry as "edited" and frozen a known-wrong frequency
for the life of the install.

Verified against his own file: LILACSAT-2 becomes LO-90 with the FM transponder
first, and the twelve curated entries that were missing their catalog numbers
get them — which also closes the NORAD gap left open when the exact join went in.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
This commit is contained in:
2026-09-10 10:41:16 +02:00
co-authored by Claude Opus 5
parent 3ce74ef8d7
commit 580e5782f8
3 changed files with 334 additions and 45 deletions
+4 -2
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@@ -6,13 +6,15 @@
"SteppIR: a Calibrate button, beside Retract. It drives every element to its end stop so the controller re-learns where zero is — the cure for an antenna that tunes to the wrong length after a power cut mid-move, after the elements were pushed by hand, or after a motor slipped. It takes minutes and the antenna is unusable until it finishes, so it asks first. Ultrabeam controllers have no such command and say so rather than pretending. Retracting the elements was already there and now explains itself: it is the storage position, and the next tune brings them back out on its own.",
"On the rotor dial, the beam no longer whips a full turn round the compass when the antenna crosses north. A rotator at 020° turned anticlockwise reports 020, 010, 000, 359, 358 … and the animation travelled from 20° to 359° the long way — a complete revolution on screen while the mast moved forty degrees the other way. The beam now follows an accumulated angle, so what is drawn is the way the antenna is actually turning. Both lobes of a bidirectional antenna are handled separately, since they cross north at different moments.",
"The rotor widget stops claiming the antenna is turning every time the wind moves it. A threshold alone could not tell the difference — a gust pushes a beam well past four degrees and back, and each excursion counted, so Stop lit and went out all evening on an antenna that had not turned. What separates a rotation from the weather is not how far the reading moves but which way: a rotor under power advances, gust after gust reverses. A step now counts only when the previous one went the same way, so movement is announced one poll later on a mast that takes half a minute to cross a pass, and never at all on a windy afternoon.",
"LilacSat-2 gets its FM transponder — 144.350 up, 437.200 down — and its proper name, LO-90. It was shipped with nothing but an APRS digipeater, because the transponder database marks that transponder inactive: it runs to an announced schedule rather than continuously, which from a database looks exactly like a dead one. The label says \"(scheduled)\" so nobody wonders why it is quiet. The generator now also lists the satellites it refused on that ground and kept nothing else for, so the next regeneration is not silent about them."
"LilacSat-2 gets its FM transponder — 144.350 up, 437.200 down — and its proper name, LO-90. It was shipped with nothing but an APRS digipeater, because the transponder database marks that transponder inactive: it runs to an announced schedule rather than continuously, which from a database looks exactly like a dead one. The label says \"(scheduled)\" so nobody wonders why it is quiet. The generator now also lists the satellites it refused on that ground and kept nothing else for, so the next regeneration is not silent about them.",
"A frequency OpsLog got wrong can now be corrected on a station that already has the satellite file. Until now the file was copied out on the first run and was the operator's from then on, so a mistake we shipped — LilacSat-2 with no FM transponder — had become their data and could never be mended. The plan now adds what is missing, brings up to date what was never edited, and leaves alone what was: an entry you corrected by hand outranks anything shipped, and the log names the ones it stood down on. The first run after this cannot tell the two apart, so it takes the shipped plan and copies your file to satellites.json.bak first — after that your edits are recognised precisely and survive every release."
],
"fr": [
"SteppIR : un bouton Calibrer, à côté de Rétracter. Il amène chaque élément en butée pour que le contrôleur retrouve son zéro — le remède à une antenne qui saccorde à la mauvaise longueur après une coupure en pleine course, après avoir poussé les éléments à la main, ou après un moteur qui a glissé. Cela prend plusieurs minutes et lantenne est inutilisable jusqu’à la fin : une confirmation est donc demandée. Les contrôleurs Ultrabeam nont pas cette commande et le disent, au lieu de faire semblant. Rétracter les éléments existait déjà et sexplique maintenant : cest la position de rangement, et le prochain accord les fait ressortir tout seuls.",
"Sur le cadran du rotor, le faisceau ne fait plus un tour complet de la boussole quand lantenne franchit le nord. Un rotor à 020° tourné dans le sens antihoraire annonce 020, 010, 000, 359, 358… et lanimation allait de 20° à 359° par le chemin long — une révolution complète à l’écran pendant que le pylône bougeait de quarante degrés dans lautre sens. Le faisceau suit désormais un angle cumulé : ce qui est dessiné est le mouvement réel de lantenne. Les deux lobes dune antenne bidirectionnelle sont traités séparément, puisquils ne franchissent pas le nord au même moment.",
"Le widget rotor nannonce plus une antenne en rotation chaque fois que le vent la bouge. Un simple seuil ne pouvait pas faire la différence — une rafale pousse une beam bien au-delà de quatre degrés puis la ramène, et chaque écart comptait : Stop sallumait et s’éteignait toute la soirée sur une antenne qui navait pas tourné. Ce qui distingue une rotation de la météo nest pas lamplitude mais le sens : un rotor sous tension avance, une rafale revient. Un écart ne compte donc que si le précédent allait dans le même sens — la rotation est annoncée un relevé plus tard sur un pylône qui met trente secondes à traverser, et plus du tout par vent fort.",
"LilacSat-2 récupère son transpondeur FM — 144,350 en montée, 437,200 en descente — et son vrai nom, LO-90. Il était livré avec un simple digipeater APRS, parce que la base de transpondeurs marque ce transpondeur comme inactif : il fonctionne selon un calendrier annoncé plutôt quen continu, ce qui, vu dune base de données, ressemble exactement à un transpondeur mort. Le libellé indique « (scheduled) » pour que personne ne se demande pourquoi il est muet. Le générateur liste désormais aussi les satellites quil a écartés pour cette raison sans rien garder dautre, afin que la prochaine régénération ne les passe plus sous silence."
"LilacSat-2 récupère son transpondeur FM — 144,350 en montée, 437,200 en descente — et son vrai nom, LO-90. Il était livré avec un simple digipeater APRS, parce que la base de transpondeurs marque ce transpondeur comme inactif : il fonctionne selon un calendrier annoncé plutôt quen continu, ce qui, vu dune base de données, ressemble exactement à un transpondeur mort. Le libellé indique « (scheduled) » pour que personne ne se demande pourquoi il est muet. Le générateur liste désormais aussi les satellites quil a écartés pour cette raison sans rien garder dautre, afin que la prochaine régénération ne les passe plus sous silence.",
"Une fréquence quOpsLog avait fausse peut désormais être corrigée sur une station qui possède déjà le fichier satellites. Jusquici ce fichier était copié au premier lancement puis appartenait à lopérateur, si bien quune erreur de notre part — LilacSat-2 sans transpondeur FM — devenait sa donnée et ne pouvait plus être réparée. Le plan ajoute maintenant ce qui manque, met à jour ce qui na jamais été modifié, et laisse intact ce qui la été : une entrée corrigée à la main prime sur tout ce qui est livré, et le journal nomme celles devant lesquelles il sest effacé. Le premier lancement après ce changement ne peut pas distinguer les deux : il prend donc le plan livré et copie dabord votre fichier en satellites.json.bak — ensuite vos modifications sont reconnues précisément et survivent à chaque version."
]
},
{