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[tor-relays] Observing Moria1’s Higher Missing-Relay Measured Rate (May 24–30 2025)

Been exploring how each directory authority measures relays and noticed that, over the week of May 24–30, Moria1 consistently reports significantly fewer relays measured than its peers—about 6% missing versus ~3.5% for most other authorities (over 2 σ below the mean).

Quick stats (May 24–30):

Attached the full spreadsheet, some tables, and charts below.

Has anyone else spotted this pattern or have ideas why Moria1’s “number of relays voted about” is lower? Any insights or pointers would be greatly appreciated!

Sharing on tor-relay list as the ticket that caught my attention doesn't allow me to comment as I'm not part of the "project": https://gitlab.torproject.org/tpo/network-health/analysis/-/issues/90
Source: Used "Number of relays voted about" section of Consensus Health pages. Ex: https://consensus-health.torproject.org/consensus-health-2025-05-24-03-00.html

Attached xlsx with all the same data shared below.
"Number of Relays Voted About" for May 24th to 30th 2025

AuthorityWeekly Missing AverageZ-score
moria15562.44
longclaw2310.84
dizum2330.82
faravahar2630.51
tor263630.49
maatuska2870.27
gabelmoo2920.23
bastet2960.18
dannenberg3080.07
Average314
Standard Deviation99

Authority05-30-2505-29-2505-28-2505-27-2505-26-2505-25-2505-24-25Average
moria193.31%93.90%94.10%93.86%93.86%94.09%92.81%93.71%
tor2695.05%97.39%96.28%95.95%95.95%95.94%94.56%95.87%
dizum96.46%97.78%97.92%97.83%97.83%97.84%96.10%97.40%
gabelmoo96.55%96.92%97.16%96.83%96.83%96.81%95.55%96.66%
dannenberg95.60%96.84%97.19%96.85%96.85%96.90%95.73%96.57%
maatuska96.17%96.73%97.37%96.97%96.97%97.05%95.73%96.71%
longclaw97.12%97.52%97.74%97.59%97.59%97.61%96.36%97.36%
bastet96.35%96.83%97.13%96.83%96.83%96.80%95.49%96.61%
faravahar96.76%97.26%97.56%97.10%97.10%97.27%95.92%96.99%
Average95.93%96.80%96.94%96.64%96.64%96.70%95.36%96.43%

05-30-25TotalRunningMissing05-29-25TotalRunningMissing05-28-25TotalRunningMissing05-27-25TotalRunningMissing05-26-25TotalRunningMissing05-25-25TotalRunningMissing05-24-25TotalRunningMissing
moria190468441605moria187518217534moria188038284519moria187948254540moria187948254540moria187538236517moria188368201635
tor2690038557446tor2687408512228tor2687198395324tor2687098356353tor2687098356353tor2687398384355tor2688188338480
dizum91938868325dizum89158717198dizum89008715185dizum88918698193dizum88918698193dizum88578666191dizum89328584348
gabelmoo89518642309gabelmoo86788411267gabelmoo87188470248gabelmoo87088432276gabelmoo87088432276gabelmoo86648388276gabelmoo87438354389
dannenberg91918787404dannenberg89168634282dannenberg89028652250dannenberg88938613280dannenberg88938613280dannenberg88588583275dannenberg89398557382
maatuska89518608343maatuska86788394284maatuska87138484229maatuska87058441264maatuska87058441264maatuska86558400255maatuska87388365373
longclaw89518693258longclaw86798464215longclaw87188521197longclaw87078497210longclaw87078497210longclaw86628455207longclaw87438425318
bastet89508623327bastet86758400275bastet87188468250bastet87078431276bastet87078431276bastet86618384277bastet87438349394
faravahar89708679291faravahar87488508240faravahar87318518213faravahar87218468253faravahar87218468253faravahar86788441237faravahar87558398357
consensus8664consensus8446consensus8508consensus8465consensus8465consensus8428consensus8389

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Attachment: Tor Directory Authority Consensus Health - Number of Relays Voted About - May 24th to May 30th 2025.xlsx
Description: MS-Excel 2007 spreadsheet

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