raptop changed the topic of #kspacademia to: https://gist.github.com/pdn4kd/164b9b85435d87afbec0c3a7e69d3e6d | Dogs are cats. Spiders are cat interferometers. | Космизм сегодня! | Document well, for tomorrow you may get mauled by a ネコバス. | <UmbralRaptor> egg|nomz|egg: generally if your eyes are dewing over, that's not the weather. | <ferram4> I shall beat my problems to death with an engineer. | We can haz pdf
<egg|laptop|egg> !wpn mofh
* galois gives mofh a argon einsteinium birb
<egg|laptop|egg> birb.
<egg|laptop|egg> how is it 02:25 already
<egg|laptop|egg> whitequark: котенькаπιcs!
* egg|laptop|egg pets whitequark
<egg|laptop|egg> mofh: the 北斗 MEO satellites have phasing [2 ; -1 ; 7]
<egg|laptop|egg> mofh: cf. [2 ; 1 ; 8] for ГЛОНАСС, [2 ; -3 ; 10] for Galileo, and obviously [2 ; 0 ; 1] for GPS
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<galois> [WIKIPEDIA] Notice Advisory to Navstar Users | "A Notice Advisory to Navstar Users (NANU) is a message issued jointly by the United States Coast Guard and the GPS Operations Center at Schriever Air Force Base in Colorado. Such notices (NANUs) provide updates on the general health of individual satellites in the GPS constellation. NANUs are typically..."
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<egg|work|egg> !acr -add:NANU Notice Advisory to Navstar Users
<galois> Definition added!
<egg|work|egg> !acr -add:NAGU Notice Advicory to Galileo Users
<galois> Definition added!
<egg|work|egg> ohno, there is a GLONASS NAGU also https://www.glonass-iac.ru/en/CUSGLONASS/
<egg|work|egg> !acr -redef:NAGU Notice Advisory to Galileo Users | Notice Advisory to GLONASS Users
<galois> Definition added!
<egg|work|egg> !acr -add:СПСГ Сообщение Потребителям Системы ГЛОНАСС
<galois> Definition added!
<egg|work|egg> GLONASS?
<egg|work|egg> ГЛОНАСС?
<galois> ГЛОНАСС: ГЛОбальная Навигационная Спутниковая Система
<egg|work|egg> IGEX?
<galois> IGEX: International ГЛОНАСС EXperiment
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<egg|laptop|egg> !acr -add:CBERS China-Brazil Earth Resources Satellite
<galois> Definition added!
<egg|laptop|egg> !acr -redef:CBERS China–Brazil Earth Resources Satellite
<galois> ...
<egg|laptop|egg> !U –
<galois> –: U+2013 EN DASH
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<egg|work|egg> ЦУС?
<egg|work|egg> !acr -add: Центр Управления Системой
<galois> Definition added!
<egg|work|egg> !acr -add:SCC System Control Centre
<galois> Definition added!
<egg|work|egg> !acr -add:JERS Japanese Earth Resources Satellite
<galois> Definition added!
<egg|work|egg> !acr -add:BIRD Bi-spectral InfraRed Detection
<galois> Definition added!
<egg|work|egg> UmbralRaptop: birb^
<egg|work|egg> !acr -add:ICESat Ice, Cloud,and land Elevation Satellite
<galois> ...
* UmbralRaptop chirps in IRAC and MIPS
<egg|work|egg> MIPS?
<UmbralRaptop> !acr -add:MIPS Multiband Imaging Photometer
<galois> ...
<UmbralRaptop> ¯\_(ツ)_/¯
<egg|work|egg> where is the s
<egg|work|egg> ah, *for Spitzer*
<egg|work|egg> !acr -redef:MIPS Multiband Imaging Photometer for Spitzer
<galois> Definition added!
<egg|work|egg> ... or for SIRTF
<egg|work|egg> SIRTF?
<galois> SIRTF: Space InfraRed Telescope Facility (became Spitzer)
<egg|work|egg> UmbralRaptop: heh, the book I'm reading (Satellites: de Kepler au GPS, en translation is handbook of satellite orbits: from Kepler to GPS) mentions Triana, saying this american project is unlikely to come to fruition, and mentioning that it was unsuccessfully relaunched under the name DSCO or DSCOVR
<egg|work|egg> (printed 2011)
<egg|work|egg> !acr -add:DSCOVR Deep Space Climate ObserVatoRy
<galois> Definition added!
<UmbralRaptop> hah
<egg|work|egg> nice book btw
<egg|work|egg> also an infinite source of !acr
<egg|work|egg> !acr -add:THEOS Thai Earth Observing System
<galois> Definition added!
<egg|work|egg> ไทยโชต
<egg|work|egg> SPOT?
<egg|work|egg> !acr -add:SPOT Satellite Pour l’Observation de la Terre
<galois> ...
<egg|work|egg> !acr -add:PSLV Polar Satellite Launch Vehicle
<galois> Definition added!
<egg|work|egg> !acr -add:SAR Synthetic Aperture Radar
<galois> Definition added!
<egg|work|egg> !acr -add:FSW 返回式卫星 (Fanhui Shi Weixing)
<galois> Definition added!
<egg|work|egg> !acr -add:GEOS Geodynamics Experimental Ocean Satellite
<galois> ...
<UmbralRaptop> !acr -add:ASLV Advanced Satellite Launch Vehicle
<galois> Definition added!
<UmbralRaptop> !acr -add:SLV Satellite Launch Vehicle
<galois> ...
<UmbralRaptop> !acr -add:GSLV Geosynchronous Satellite Launch Vehicle
<egg|work|egg> !acr -add:ERS European Remote-Sensing
<egg|work|egg> hm
<egg|work|egg> is galois OK
<egg|work|egg> ERS?
<galois> ERS: European Remote-Sensing
<egg|work|egg> ok
<UmbralRaptop> MEOW?
<UmbralRaptop> … that needs to be a thing eventually
<egg|work|egg> UmbralRaptop: https://en.wikipedia.org/wiki/PAS-22 this is fun
<galois> [WIKIPEDIA] PAS-22 | "PAS-22, previously known as AsiaSat 3 and then HGS-1, was a geosynchronous communications satellite, which was salvaged from an unusable geosynchronous transfer orbit by means of the Moon's gravity...."
<UmbralRaptop> Ah, that one
<egg|work|egg> !acr -add:MEOW Maximum Envelope of Water
<galois> Definition added!
<egg|work|egg> !acr -redef:MEOW Maximum Envelope Of Water
<galois> Definition added!
<UmbralRaptop> \o/
<egg|work|egg> !acr -add:OICETS Optical Inter-Orbit Communication Engineering Test Satellite
<galois> Definition added!
<egg|work|egg> LAGEOS
<egg|work|egg> LAGEOS?
<galois> LAGEOS: LAser GEOdynamics Satellite
<egg|work|egg> PAGEOS?
<egg|work|egg> !acr -add:PAGEOS PAssive Geodetic Earth Orbiting Satellite
<galois> Definition added!
<egg|work|egg> !acr -add:TDRS Tracking and Data Relay Satellite
<galois> Definition added!
<egg|work|egg> !acr -add:STRV Space Technology Research Vehicle
<galois> Definition added!
<egg|work|egg> !acr -add:COBRA Communications Orbiting Broadband Repeating Arrays
<galois> Definition added!
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<egg> mofh: whitequark: is there a sane way to the contents of (compressed) files in subdirectories of ftp://gssc.esa.int/gnss/products or ftp://igs.ensg.eu/pub/igs/products/mgex
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<egg> s/to the/to search the/
<galois> egg meant to say: mofh: whitequark: is there a sane way to search the contents of (compressed) files in subdirectories of ftp://gssc.esa.int/gnss/products or ftp://igs.ensg.eu/pub/igs/products/mgex
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<mofh> egg: without first mass-downloading them? prolly not.
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<egg> mofh: is there a sane way to mass-download them and sls them
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<_whitenotifier-3d18> [Principia] pleroy reviewed pull request #2127 commit - https://git.io/fjtFK
<_whitenotifier-3d18> [Principia] pleroy reviewed pull request #2127 commit - https://git.io/fjtFX
<_whitenotifier-3d18> [Principia] pleroy reviewed pull request #2127 commit - https://git.io/fjtFD
<_whitenotifier-3d18> [Principia] pleroy reviewed pull request #2127 commit - https://git.io/fjtFy
<_whitenotifier-3d18> [Principia] pleroy reviewed pull request #2127 commit - https://git.io/fjtF9
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<_whitenotifier-3d18> [Principia] pleroy reviewed pull request #2127 commit - https://git.io/fjtFH
<egg> mofh: meow
<_whitenotifier-3d18> [Principia] pleroy reviewed pull request #2127 commit - https://git.io/fjtF5
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<_whitenotifier-3d18> [Principia] pleroy synchronize pull request #2127: Add support for editing burn parameters using a text field - https://git.io/fjtw7
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<mofh> egg: wget -r --no-parent <url here>, then presumably grep or whatever the windows equivalent is. wget binaries exist on windows, alternatively there *might* be powershell builtins that do the same as wget?
<egg|laptop|egg> mofh: Invoke-WebRequest, alias wget?
<egg|laptop|egg> :-p
<egg|laptop|egg> mofh: also aliased to iwr and curl
<mofh> ..TIL
<egg|laptop|egg> mofh: sls is the greplike thing
<egg|laptop|egg> Select-String
<egg|laptop|egg> Seleggt-String
<egg|laptop|egg> mofh: there's no recursive flag in iwr though
<mofh> Hmm. No clue, I'm unfamiliar with iwr (I'd have to read some docs, and there might not be an easy analogue of -r for it in the first place).
<_whitenotifier-3d18> [Principia] Pending. Build queued… - 
<_whitenotifier-3d18> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3546/
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<UmbralRaptop> Let's see, Britain halts and catches fire during Yuri's night in the US?
<UmbralRaptop> (Yuri as in Ю́рий, not 百合)
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<_whitenotifier-3d18> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3546/
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<_whitenotifier-3d18> [Principia] eggrobin reviewed pull request #2127 commit - https://git.io/fjtNc
<_whitenotifier-3d18> [Principia] eggrobin labeled pull request #2127: Add support for editing burn parameters using a text field - https://git.io/fjtw7
<egg> youri
<egg> mofh: there's https://stackoverflow.com/a/37085486/6308082 or similar
<_whitenotifier-3d18> [Principia] pleroy synchronize pull request #2127: Add support for editing burn parameters using a text field - https://git.io/fjtw7
<_whitenotifier-3d18> [Principia] pleroy closed issue #2121: Add direct values input apart from sliders. - https://git.io/fjIwA
<_whitenotifier-3d18> [Principia] pleroy closed pull request #2127: Add support for editing burn parameters using a text field - https://git.io/fjtw7
<_whitenotifier-3d18> [Principia] pleroy pushed 12 commits to master [+7/-2/±34] https://git.io/fjtNo
<_whitenotifier-3d18> [Principia] pleroy ddeffba - A first attempt, fighting with Unity.
<_whitenotifier-3d18> [Principia] pleroy f4240e2 - A bit of useful stuff.
<_whitenotifier-3d18> [Principia] pleroy 559703f - Something that vaguely works.
<_whitenotifier-3d18> [Principia] ... and 9 more commits.
<_whitenotifier-3d18> [Principia] pleroy labeled issue #2099: We should replace the navball in IVA - https://git.io/fjvBb
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<egg> mofh: yay, managed to do that on ftp://igs.ign.fr/pub/igs/products/mgex/2034/
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<egg> mofh: and I can sls files that have all sorts of Beidou orbits, as well as QZSS J07
<egg> (the QZSS satellites are J01, J02, J03, and J07
<egg> )
UmbralRaptor is now known as RelativisticRaptor
<egg> mofh: where J001 = J01, J002 = J02, J003 = J07, J004 = J03, of course
<egg> J07 is in GEO, contrary to the other ones that are in that fun synchronous orbit
<egg> and only GFZ seems to be tracking J07 in week 2034 Ꙩ_ꙩ
<galois> [WIKIPEDIA] 174567 Varda | "174567 Varda (Quenya: [ˈvarda]), provisional designation 2003 MW12, is a binary trans-Neptunian object of the resonant hot classical population of the Kuiper belt, located in the outermost region of the Solar System. Its moon, named Ilmarë, was discovered in 2009.Brown estimates that, with an absolute..."
<mofh> egg: is there any special role for J07?
<mofh> RelativisticRaptor: I mean it's Varda and her handmaiden, it makes sense.
<mofh> RelativisticRaptor: my only question is if there is a similar corresponding object named Manwë
<galois> [WIKIPEDIA] 385446 Manwë | "385446 Manwë ([ˈmanwe]) is a binary resonant Kuiper belt object in a 4:7 mean-motion resonance with Neptune. It was discovered on 25 August 2003, by American astronomer Marc Buie at Cerro Tololo Observatory in northern Chile...."
<mofh> WOW I was mostly joking but that's actually really cute to see.
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<egg> mofh: gaaaaah the mirrors have different data ftp://cddis.gsfc.nasa.gov/gnss/products/mgex/2048/ ftp://igs.ensg.eu/pub/igs/products/mgex/2048/
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<egg> !wpn -add:wpn needle
<galois> Added wpn 'needle'
<egg> !wpn -add:adj copper
<galois> Entry already exists!
<UmbralRaptor> I added basically the entire periodic table
<UmbralRaptor> !
<UmbralRaptor> !wpn -add:Buffon
<galois> Invalid command. Valid forms: !wpn, !wpn someone, !wpn -add:wpn morphism, !wpn -add:adj IEEE 754, !wpn -del:wpn trout, !wpn -del:adj symmetric
<UmbralRaptor> !wpn -add:adj Buffon
<galois> Added adj 'Buffon'
<SnoopJeDi> !wpn -add:adj Buffon
<galois> Entry already exists!
<SnoopJeDi> oh oops
<SnoopJeDi> lol
<mofh> egg: what the hell? do they still count as "mirrors" if their content differs, then?
* UmbralRaptor has made that mistake before
<egg> mofh: they are called mirrors by the MGEX site, but, well http://mgex.igs.org/IGS_MGEX_Products.php
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<egg> MGWG?
<galois> MGWG: Multi-GNSS Working Group
<egg> mofh: aaaaaaaaaaaaaaaaaaaa i have opened another sp3 file and found another dialect
<UmbralRaptop> 1 dialect per file?
<egg> WHU emits a file with 110 satellites but calls it sp3-d
<egg> #cP2019 3 31 0 0 0.00000000 96 u+U IGb08 FIT WHU
<egg> ## 2047 0.00000000 900.00000000 58573 0.000000000
<egg> + 110 G01G02G03G05G06G07G08G09G10G11G12G13G14G15G16G17G18
<egg> 110 > 85
<mofh> egg: is it otherwise compliant?
<mofh> egg: the max sat number is completely arbitrary, just up it to like 127 or something.
<egg> I don't know, I was just greping the headers
<egg> mofh: no it is not
<egg> SP3-c is fixed-format
<egg> so 85 is a hard limit, because that is how many fits in the allocated lines
<egg> SP3-d is the version that introduces arbitrary-length headers
<egg> unrelated, interesting remark from the SP3-d doc: One final note is needed regarding multi-constellation orbit files. Just because one can put GNSS satellites from multiple constellations into the same SP3-c or SP3-d file, doesn’t mean it is always a good idea. For example, non-trivial inter-system timing and orbital reference frame differences currently preclude the IGS from making a rigorous GPS+GLONASS product wher
<egg> e the two constellations are truly in the same Time System and in the same Reference Frame. For lower accuracy files (like the MGWG broadcast ephemeris SP3 file mentioned above) these differences in Time System and Reference Frame might be ignored, as long as everyone understands the limitations of such a file.
<mofh> egg: so up the allocated lines :p
<egg> mofh: ...
<egg> mofh: wat
<egg> mofh: that's a different format, and requires drastically different parsing logic
<egg> mofh: also, it's called sp3-d
<mofh> egg: wait, how does it require drastically different parsing logic if you just make the sat number limit higher?
<mofh> or does SP3-c eggsplicitly require *eggsactly* 85 sats/file?
<egg> SP3-c has the satellite declarations in lines three, four, five, six, and seven ftp://igs.org/pub/data/format/sp3c.txt
<egg> line eight has accuracies
<egg> it's fixed form
<SnoopJeDi> hmm, I should start writing down timestamps for the weird constant-freq noises on ratradio.nyc
<egg> the purpose of SP3-d is to remove that limitation ftp://igs.org/pub/data/format/sp3d.pdf
<SnoopJeDi> I have a suspicion it's a train or something
<SnoopJeDi> although it seems really weird for ultrasonic to propagate that far
<egg> it also allows for more than four lines of comments
<mofh> four lines of comments should be enough for everyone, tho?
<egg> hah
<egg> !acr -add:SHAO SHanghai Astronomical Observatory (上海天文台)
<galois> Definition added!
<egg> TUM?
<egg> !acr -add:TUM Technische Universität München
<galois> Definition added!
<UmbralRaptop> That's e_14159's place, right?
<egg> !acr -add:JAXA Japan Aerospace eXploration Agency
<galois> Definition added!
<egg> UmbralRaptop: yeah
<egg> why are the wuhan university files called WUM
<egg> mofh: it seems the NASA mirror (CDDIS) is missing the WHU data
<mofh> egg: *boggle* these mirrors seem to be very bad at being mirrors
<egg> !acr -add:WHU WuHan University (武汉大学)
<galois> Definition added!
<egg> mofh: are the IGN and ENSG mirrors consistent?
<egg> mofh: also, are there any other files missing from CDDIS?
<egg> mofh: asking you because you can probably do *nix magic to procedurally compare directory listings faster than I can write the corresponding powershell scripts
<egg> PANDA?
<galois> PANDA: Position And Navication Data Analyst
<SnoopJeDi> is Navication when a færie shows up and nags you?
<egg> oh.
<egg> !acr -redef:PANDA Position And Navigation Data Analyst
<galois> Definition added!
<mofh> uhh I can try at least (I'm willing to bet CDDIS is missing more files just at a guess, mass-downloading now tho)
<egg> mofh: well, to check for missing files you need only listings, not to download the entire thing
<egg> there's a lot of data there
<egg> and the set of agencies varies by week so you need to look at many weeks
<UmbralRaptop> PANDAS?
<UmbralRaptop> oh, not a real acronym
<egg> UmbralRaptop: PANDA is a real thing that I learned about in the comment lines of SP3 files from WHU
<egg> /* GNSS RESEARCH CENTER, WUHAN UNIVERSITY (WHU), P. R. CHINA
<egg> /* POSITION AND NAVIGATION DATA ANALYST (PANDA) SOFTWARE
<egg> /* PCV:IGS08_2045 OL/AL:FES2004 NONE NN ORB:CoM CLK:CoN
<egg> /*
<egg> mofh: it appears that these "C" files with too many satellites are using fixed-form with moar satellite lines
<egg> mofh: which means that it's an unspecified dialect of C where instead of 5 lines of satellites you have 10
<egg> it seems that in a newer kind of file (ULA, not yet specified on the MGEX product page, maybe ultra-rapid?) WHU has started emitting proper SP3-d, thus without additional nonstandard fixed blank lines (just enough lines for the actual number of sats)
<UmbralRaptop> aaaaaaaa
<_whitenotifier-3d18> [Principia] Kinexity opened issue #2128: Engine thrust offset with maneuver planning (feature request) - https://git.io/fjths
<egg> mofh: meow?
<mofh> egg: IGN / ENSG appears to be consistent, I mass-grabbed them and compared sha1 hashes of each file
<egg> mofh: I mean, I would eggspect the files to be consistent, it is more the set of files that I have doubts about
<egg> mofh: wait, did you grab the entire mgex directories? isn't that huge?
<mofh> egg: huh, seems that mass-download aborted early, good catch
<mofh> I did grab a few GB of files tho
<mofh> restarting
<mofh> (look I have access to a university connection and about 500GB of free scratch space, might as well use it)
<mofh> IGN is done tho, it downloaded like an order of magnitude faster
<egg> yeah ENSG looks like it's served by an Apple ][
<egg> CDDIS tends to be quick too, but then it's missing an AC at least
* egg meows at whitequark
<mofh> egg: dumb question, but is IGN a gov't agency?
<mofh> ...I guess "Institut National" would imply that yes
<egg> https://fr.wikipedia.org/wiki/Institut_national_de_l'information_g%C3%A9ographique_et_foresti%C3%A8re
<galois> [WIKIPEDIA] Institut national de l'information géographique et forestière | "L'Institut national de l'information géographique et forestière est un établissement public à caractère administratif ayant pour mission d'assurer la production, l'entretien et la diffusion de l'information géographique de référence en France. Avant l'intégration de l'inventaire forestier national le..."
<egg> Organisation mèreMinistère de la Transition écologique et solidaire
<mofh> ahh.
<egg> gods those ministries keep changing to increasingly convoluted names
<galois> [WIKIPEDIA] Ministère de l'Écologie (France) | "Le ministère de la Transition écologique et solidaire (MTES) est, en France, l’administration chargée de préparer et mettre en œuvre la politique du Gouvernement dans les domaines du développement durable, de l’environnement et des technologies vertes, de la transition énergétique et de l'énergie, du..."
<mofh> oh wow that's only like 26 years after IGC
<mofh> actually no wait it's like 53 years after, I'm dumb
<egg> IGC?
<galois> [WIKIPEDIA] Inspection générale des carrières | "L'Inspection générale des carrières (IGC) est l'organisme chargé de l'administration et du contrôle des anciennes carrières souterraines et des catacombes de Paris, anciennement connu sous le nom de Service des carrières du département de la Seine...."
<mofh> iirc, the oldest still-extant FR public works agency
<egg> mofh: for instance the BEA reports to that ministry too
<egg> or the DGPR
<egg> DGPR?
<egg> hm
<egg> oh maybe that was in qboid days
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<mofh> Direction Générale de la Prévention des Risques, iirc?
<mofh> > within a ministry whose name changes every few years
<mofh> ROFL
<mofh> > emballement in this context meaning runaway, *not* packaging
<mofh> I keep forgetting that has the former meaning; having ebayed crap from FR ebay before doesn't help in me immediately associating it as "packaging" >_>
<whitequark> emballment
<SnoopJeDi> job title: emballer
<egg> SnoopJeDi: that would be emballeur
<mofh> egg: except that's an actual job :p
<egg> whitequark: hm, the semantics of balle vs. boule in fr don't really overlap with en
<mofh> https://arxiv.org/abs/1904.04042 ahh yes, one of my fav. hacks in Condensed Matter Physics: Inkjet Printer Thin-Film Deposition
<mofh> (SOFC == Solid-Oxide Fuel Cell)
<egg> whitequark: e.g. balle means both bullet and ball (as in sports), boule means ball as in the contractible thing whose boundary is a sphere, or the anatomical slang, or the metal things for pétanque