Re: Using cgps to determine the satellite constellation

[Gary E. Miller]

Yo David!

On Mon, 18 May 2020 19:18:39 +0100
"David J Taylor" <address@hidden> wrote:

> > By asking about the constellation showing in cgps, I meant /which/ 
> > constellation - GPS, Galileo etc.  
> 
> yes, that is exactly what I meant to, and what recent versions of cgps
> do.  What version are you on?

To follow up on that, here is my cgps from git head:

┌───────────────────────────────────────────┐┌──────────────────Seen 30/Used 21┐
│ Time:        2020-05-18T18:38:43.000Z (18)││     PRN  Elev   Azim   SNR  Use │
│ Latitude:         44.06875790 N           ││GP     6  21.0  161.0  41.0   Y  │
│ Longitude:       121.31436550 W           ││GP    12   6.0  277.0  30.0   Y  │
│ Alt (HAE, MSL):   3647.014,   3717.064 ft ││GP    13  25.0  217.0  43.0   Y  │
│ Speed:             0.00 mph               ││GP    15  22.0  250.0  33.0   Y  │
│ Track (true, var):    57.7,  14.4     deg ││GP    17  76.0   61.0  42.0   Y  │
│ Climb:             0.00 ft/min            ││GP    19  76.0  202.0  49.0   Y  │
│ Status:         3D DGPS FIX (3 secs)      ││GP    24  34.0  308.0  39.0   Y  │
│ Long Err  (XDOP, EPX):  0.43, +/-  5.3 ft ││GP    28  47.0   73.0  33.0   Y  │
│ Lat Err   (YDOP, EPY):  0.44, +/-  5.4 ft ││GP    30  18.0  144.0  34.0   Y  │
│ Alt Err   (VDOP, EPV):  0.92, +/-  0.1 ft ││SB    44  39.0  174.0  44.0   Y  │
│ 2D Err    (HDOP, CEP):  0.62, +/-  0.0 ft ││SB    46  39.0  191.0  44.0   Y  │
│ 3D Err    (PDOP, SEP):  1.11, +/- 15.5 ft ││SB    51  37.0  160.0  39.0   Y  │
│ Time Err  (TDOP):       0.60              ││GA   302  65.0   80.0  31.0   Y  │
│ Geo Err   (GDOP):       1.26              ││GA   307  18.0  272.0  27.0   Y  │
│ Speed Err (EPS):       +/-  0.0 mph       ││GA   308   8.0  223.0  21.0   Y  │
│ Track Err (EPD):        n/a               ││GA   311  17.0   38.0  22.0   Y  │
│ Time offset:            0.035970836 sec   ││GA   330  54.0  307.0  41.0   Y  │
│ Grid Square:            CN94ib26          ││GA   336  53.0   85.0  37.0   Y  │
└───────────────────────────────────────────┘└More...──────────────────────────┘
0.000,"eps":0.00,"epc":0.04,"ecefx":-2386077.34,"ecefy":-3922192.15,"ecefz":4414
357.25,"ecefvx":0.00,"ecefvy":0.00,"ecefvz":0.00,"ecefpAcc":0.03,"ecefvAcc":0.00
,"geoidSep":-22.155,"eph":0.014,"sep":4.731}

Notice the GP are GPS sats, GA are Galileo, and the others pushed off the page.


RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

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