[teqc] helpful tip of week 1994

Richard B. Langley lang at unb.ca
Thu Mar 29 13:13:04 MDT 2018


Hi Lou:
Every now and then (at least twice a year), I update my table and plot of the GLONASS constellation:
http://www2.unb.ca/gge/Resources/GLONASSConstellationStatus.txt
http://www2.unb.ca/gge/Resources/GLONASSConstellationPlot.pdf
All the best
-- Richard

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| Richard B. Langley                            E-mail: lang at unb.ca         |
| Geodetic Research Laboratory                  Web: http://gge.unb.ca/     |
| Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142   |
| University of New Brunswick                   Fax:      +1 506 453-4943   |
| Fredericton, N.B., Canada  E3B 5A3                                        |
|        Fredericton?  Where's that?  See: http://www.fredericton.ca/       |
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> On Mar 29, 2018, at 3:55 PM, Lou Estey <lou at unavco.org> wrote:
> 
> This week's tip: GLONASS: slot numbers > 24
> For the entire history of GLONASS (as far as I know), and still today, the "in operation"
> GLONASS slot numbers have only been 1-24; see 
> https://www.glonass-iac.ru/en/GLONASS/
> 
> 
> Some receivers allow tracking of any GLONASS SV, operational or not.  Thus some GLONASS SVs
> broadcast slot numbers -- and are reported by the receiver -- with values greater than 24.
> These are SVs in flight tests, spares, etc.  (Such SVs do not include nominally "in operation"
> SVs that are temporarily taken out of operation for maintenance, re-tasking, etc.)
> 
> One such GLONASS SV (in fact, the only one right now) is GC #701, the first GLONASS-K1,
> launched 2011 Feb 26.  You will note, however, that the IAC table in the above link gives
> the slot number of this SV (which is still officially in "flight tests") as "20".
> Additionally, note that the "in operation" slot 20 GLONASS SV is #719.  (I.e. #701 is
> currently sitting in a nominal slot 20 location, which you can check yourself by comparing
> its orbital parameters with those of #719.)
> 
> Teqc, by default, will not allow anything except nominally "in operation" GLONASS SVs,
> and hence limits the slot numbers (by default) to 1-24.
> 
> If you want to include slot numbers greater than 24 (hence allowing SVs that technically
> are not nominally "in operation"), then use a teqc option like '+R1-26' (*) ... or modify
> the last number to whatever is the highest non-operational slot number that you need or
> want to include, as indicated by the values in the data file from the receiver.
> 
> If you do not want to include slot numbers greater than 24 (hence filtering out the SVs
> that are not nominally "in operation"), then use a teqc option like '-R25-26' (*) ... or
> modify the last number to whatever is the highest non-operational slot number that you
> need to exclude, as indicated by the values in the data file from the receiver.
> 
> The choice of what to do is up to you.
> 
> Happy teqc-ing!
> 
> cheers,
> --lou
> 
> * The teqc options for SV filtering (i.e. the above options) were covered in a previous
> 'tip of the week': 
> https://postal.unavco.org/pipermail/teqc/2017/002277.html
> 
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Louis H. Estey, Ph.D.              office:  [+001] 303-381-7456
> UNAVCO, 6350 Nautilus Drive           FAX:  [+001] 303-381-7451
> Boulder, CO  80301-5554            e-mail:  lou  unavco.org
> 
> "If the universe is the answer, what is the question?"
>                                                -- Leon Lederman
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Past helpful tips:
> 
> week 1894: using teqc config files - 
> http://postal.unavco.org/pipermail/teqc/2016/002067.html
> 
> week 1895: qc of high-rate data - 
> http://postal.unavco.org/pipermail/teqc/2016/002071.html
> 
> week 1896: UNIX/Linux shells for Windows - 
> http://postal.unavco.org/pipermail/teqc/2016/002072.html
> 
> week 1897: '-' vs. '+' teqc options - 
> http://postal.unavco.org/pipermail/teqc/2016/002076.html
> 
> week 1898: auto-identification of formats - 
> http://postal.unavco.org/pipermail/teqc/2016/002092.html
> 
> week 1899: auto-identification vs. format flags - 
> http://postal.unavco.org/pipermail/teqc/2016/002096.html
> 
> week 1900: square brackets in options - 
> http://postal.unavco.org/pipermail/teqc/2016/002105.html
> 
> week 1901: using option '+mds' - 
> http://postal.unavco.org/pipermail/teqc/2016/002108.html
> 
> week 1902: qc results w/ problematic nav messages - 
> http://postal.unavco.org/pipermail/teqc/2016/002113.html
> 
> week 1903: '-no_orb[it]' and '-no_pos[ition]' options - 
> http://postal.unavco.org/pipermail/teqc/2016/002115.html
> 
> week 1904: '-week' option - 
> http://postal.unavco.org/pipermail/teqc/2016/002117.html
> 
> week 1905: using '+bcf' for XYZ/geodetic conversion - 
> http://postal.unavco.org/pipermail/teqc/2016/002126.html
> 
> week 1906: the '+v[erify]' option - 
> http://postal.unavco.org/pipermail/teqc/2016/002128.html
> 
> week 1907: '+C2', '+L5', "+L6', '+L7', '+L8', '+all' options - 
> http://postal.unavco.org/pipermail/teqc/2016/002130.html
> 
> week 1908: getting RINEX doppler and L2 - 
> http://postal.unavco.org/pipermail/teqc/2016/002131.html
> 
> week 1909: using paths w/ file names - 
> http://postal.unavco.org/pipermail/teqc/2016/002132.html
> 
> week 1910: the (un)importance of file names - 
> http://postal.unavco.org/pipermail/teqc/2016/002133.html
> 
> week 1911: notices, warnings, and errors - 
> http://postal.unavco.org/pipermail/teqc/2016/002134.html
> 
> week 1912: the '-max_rx_SVs' option - 
> http://postal.unavco.org/pipermail/teqc/2016/002137.html
> 
> week 1913: the end of '++igs' and '+igs' - 
> http://postal.unavco.org/pipermail/teqc/2016/002140.html
> 
> week 1914: splicing together RINEX files - 
> http://postal.unavco.org/pipermail/teqc/2016/002144.html
> 
> week 1915: using '-O.int' and '-O.dec' - 
> http://postal.unavco.org/pipermail/teqc/2016/002145.html
> 
> week 1916: '+doy' option - 
> http://postal.unavco.org/pipermail/teqc/2016/002146.html
> 
> week 1917: '-tbin' and '-ast' options - 
> http://postal.unavco.org/pipermail/teqc/2016/002152.html
> 
> week 1918: mp12 RMS before/after Oct 2013 - 
> http://postal.unavco.org/pipermail/teqc/2016/002158.html
> 
> week 1919: the global windowing options - 
> http://postal.unavco.org/pipermail/teqc/2016/002159.html
> 
> week 1920: '-M.dec' and '-N.dec' options - 
> http://postal.unavco.org/pipermail/teqc/2016/002163.html
> 
> week 1921: combining time filtering options - 
> http://postal.unavco.org/pipermail/teqc/2016/002176.html
> 
> week 1922: helping me (or someone else on the list) help you - 
> http://postal.unavco.org/pipermail/teqc/2016/002187.html
> 
> week 1923: the "build" line - 
> http://postal.unavco.org/pipermail/teqc/2016/002190.html
> 
> week 1924: the qc '-w[idth]' option - 
> http://postal.unavco.org/pipermail/teqc/2016/002193.html
> 
> week 1925: qc with explicit time windowing - 
> http://postal.unavco.org/pipermail/teqc/2016/002194.html
> 
> week 1926: the '+rx_state' option - 
> http://postal.unavco.org/pipermail/teqc/2016/002200.html
> 
> week 1927: the '-O.sum' option - 
> http://postal.unavco.org/pipermail/teqc/2016/002204.html
> 
> week 1928: the '+meta' and '+mds' options - 
> http://postal.unavco.org/pipermail/teqc/2016/002206.html
> 
> week 1930: more on '-O.sum' - 
> http://postal.unavco.org/pipermail/teqc/2017/002207.html
> 
> week 1931: the '-O.s[ystem]' option - 
> http://postal.unavco.org/pipermail/teqc/2017/002208.html
> 
> week 1932: leap seconds - 
> http://postal.unavco.org/pipermail/teqc/2017/002215.html
> 
> week 1936: what you can (and shouldn't) do in a RINEX obs file - 
> http://postal.unavco.org/pipermail/teqc/2017/002229.html
> 
> week 1938: the '+psp' option - 
> http://postal.unavco.org/pipermail/teqc/2017/002231.html
> 
> week 1939: the '+diag' option - 
> http://postal.unavco.org/pipermail/teqc/2017/002235.html
> 
> week 1951: '-n_<system>' and SV filtering options - 
> http://postal.unavco.org/pipermail/teqc/2017/002277.html
> 
> week 1953: more with '+diag' option - 
> http://postal.unavco.org/pipermail/teqc/2017/002287.html
> 
> week 1954: using '+diag' output to split raw files - 
> http://postal.unavco.org/pipermail/teqc/2017/002290.html
> 
> week 1955: current qc notation - 
> http://postal.unavco.org/pipermail/teqc/2017/002302.html
> 
> week 1956: the '+qcq' option - 
> http://postal.unavco.org/pipermail/teqc/2017/002304.html
> 
> week 1957: using Trimble formats - 
> http://postal.unavco.org/pipermail/teqc/2017/002305.html
> 
> week 1958: ToC != ToE messages - 
> http://postal.unavco.org/pipermail/teqc/2017/002310.html
> 
> week 1959: receivers vs. formats - 
> http://postal.unavco.org/pipermail/teqc/2017/002311.html
> 
> week 1960: when the '-week' option is very wrong to use - 
> https://postal.unavco.org/pipermail/teqc/2017/002314.html
> 
> week 1961: "less" is usually best - 
> https://postal.unavco.org/pipermail/teqc/2017/002315.html
> 
> week 1962: using GPS L2C with teqc - 
> https://postal.unavco.org/pipermail/teqc/2017/002316.html
> 
> week 1964: the '+eds' options - 
> https://postal.unavco.org/pipermail/teqc/2017/002317.html
> 
> week 1965: handling RINEX comment lines - 
> https://postal.unavco.org/pipermail/teqc/2017/002324.html
> 
> week 1966: the '+dUTC_p' options - 
> https://postal.unavco.org/pipermail/teqc/2017/002331.html
> 
> week 1967: the strange position from '+meta' - 
> https://postal.unavco.org/pipermail/teqc/2017/002355.html
> 
> week 1972: what shows up as metadata in RINEX headers - 
> https://postal.unavco.org/pipermail/teqc/2017/002362.html
> 
> week 1973: GPS L2C navigation messages - 
> https://postal.unavco.org/pipermail/teqc/2017/002363.html
> 
> week 1974: the '+ion_p' options - 
> https://postal.unavco.org/pipermail/teqc/2017/002370.html
> 
> week 1975: the '+event' options - 
> https://postal.unavco.org/pipermail/teqc/2017/002372.html
> 
> week 1976: options '+smtt' (default) vs. '-smtt' - 
> https://postal.unavco.org/pipermail/teqc/2017/002374.html
> 
> week 1977: the reported interval with '+meta' for a RINEX obs file - 
> https://postal.unavco.org/pipermail/teqc/2017/002377.html
> 
> week 1978: the '-N.dUTC' options - 
> https://postal.unavco.org/pipermail/teqc/2017/002378.html
> 
> week 1979: the various qc elevation angles - 
> https://postal.unavco.org/pipermail/teqc/2017/002383.html
> 
> week 1980: avoid in RINEX: Transit data - 
> https://postal.unavco.org/pipermail/teqc/2017/002385.html
> 
> week 1981: avoid in RINEX: epoch flag = 6 - 
> https://postal.unavco.org/pipermail/teqc/2017/002389.html
> 
> week 1982: avoid in RINEX: RCV CLOCK OFFS APPL = 1 - 
> https://postal.unavco.org/pipermail/teqc/2018/002392.html
> 
> week 1983: don't count on in RINEX: receiver clock offset per epoch - 
> https://postal.unavco.org/pipermail/teqc/2018/002393.html
> 
> week 1984: requirements for multiple target files/stdin - 
> https://postal.unavco.org/pipermail/teqc/2018/002410.html
> 
> week 1985: default output for various input - 
> https://postal.unavco.org/pipermail/teqc/2018/002412.html
> 
> week 1986: the '+latency' options - 
> https://postal.unavco.org/pipermail/teqc/2018/002419.html
> 
> week 1987: the 'O.px and 'O.pg' options - 
> https://postal.unavco.org/pipermail/teqc/2018/002422.html
> 
> week 1988: the '+relax' option - 
> https://postal.unavco.org/pipermail/teqc/2018/002423.html
> 
> week 1992: the '+x_tilt' options - 
> https://postal.unavco.org/pipermail/teqc/2018/002452.html
> 
> week 1993: GLONASS: slot and freq. chnl. numbers - 
> https://postal.unavco.org/pipermail/teqc/2018/002453.html
> 
> 
> 
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