version: teqc 2009Oct19 SV+---------|--------|--------|--------|--------|--------|--------|--------+ SV 1| | 1 2|ooI- -IoooooooooI- -Iooooooooooooo| 2 3| --ooooooooooooooooooooo+ | 3 4|- -IIoooI-- --ooooooooooooooooI| 4 5|oooooooooI- ---II- --oooooooo| 5 6| -IoooooooooooooooooooooI- | 6 7|ooI- -IoooooooII- -IMoooooooooooo| 7 8|ooooooo-- -1oooI-- --IIoooooooo| 8 9| -oooooooooooooooooooooI- | 9 10|oooooooIM- --M- --oooooooooo| 10 11| -IooooooooooooooooooooII | 11 12| IooooooooooooooooooooII | 12 13|I ----- --oooooooooooooooooMI| 13 14| --ooooooooooooooI- -IooIoooooooI- | 14 15|ooooooooooooooooII -oooo| 15 16| IIoooooooooooooooooII- --- | 16 17| -IooooooooooI- -ooooooooooooooI- | 17 18| -IooooooooooooI- IIIooooooooooooI | 18 19| --ooooooooooooooooooooII | 19 20| -oooooooooooooooooooooI- | 20 21|-IoooooI- -2IoooooooooooooooI- -| 21 22| --oooooooooo- -IooooooooooooooI- | 22 23| --IoII-- -IIooooooooooooooo--- | 23 24| | 24 25|I- -IoooooooooI --Ioooooooooooooo| 25 26| --ooooooooooooooooI MooIooooo-- | 26 27|-oooooooooooooooooooooo- -| 27 28|oooooooooooI- -MooooooooooII -oooo| 28 29| --ooooooooooooooooo1I- ---- | 29 30| -Iooooooooooooooooooooo- | 30 31| --oooooooooooooooo- -oIooooo-- | 31 32| --oooooooooooooooooIoI- | 32 R 7|~~~~~I c~~~~~~~~~~~~~~~~~~~~|R 7 R11|~~~~~~~~~~~~~~~~~~ c~~~ c~~~~~~|R11 R 8|~~~~~~~~I2 M~~I ~~~~~~~~~~~~~~~|R 8 R10|~~~~~~~~~c cc~~~~~~~ ccc~~~~~~~~~|R10 R19| c~~~ M~~~~~~~~~~~~~~~~~~~~ |R19 R 2| ~2~~~~~~~~~~~I M~~~~~~~~~~~ c~|R 2 R20| ~~~~~~~~ ~~~~~~~~~~~~~~~MM |R20 R21| ~~~~~~~~~~~I 2~~~~~~~~~~~~~~~ |R21 R 3| c~~~~~~~~~~I c~~~~~~~~~~~~~ |R 3 R13| c~~~~~~~~~~~~~~~~~~~I |R13 R14| M~~~~~~~~~~~~~~~Mc c~~~M |R14 R17| I~~~~~~~~~~~~~~~~~~~I 2~~I |R17 R15| c~~~~~~~~~~~~~~~ c~~~~~~~c |R15 R18| L~~~~~~~~~~~~~~~~~~~~~ |R18 -dn|21 1 1 1 1 1 1122221 1 11 1 1 1112 |-dn +dn|4222211343222 122221 232144445661111 22432431 312112211221332223241 4|+dn + 0|cbaaaabccbbbbabdddcbaabbaabbbcceebbba9bbeeeeebaacbbaaaa99bbbccccccbcbaac|+ 0 Pos|o o oooo oo oo |Pos Clk| |Clk +---------|--------|--------|--------|--------|--------|--------|--------+ 00:00:00.000 23:59:30.000 2009 Nov 27 2009 Nov 27 ********************* QC of RINEX file(s) : IGNE3310.09O input RnxNAV file(s) : IGNE3310.09N IGNE3310.09G ********************* 4-character ID : IGNE (# = 13411M001) Receiver type : LEICA GRX1200GGPRO (# = 355504) (fw = 7.53) Antenna type : LEIAT504GG LEIS (# = 200635) Time of start of window : 2009 Nov 27 00:00:00.000 Time of end of window : 2009 Nov 27 23:59:30.000 Time line window length : 23.99 hour(s), ticked every 3.0 hour(s) antenna WGS 84 (xyz) : 4851142.5072 -314494.4435 4116287.5342 (m) antenna WGS 84 (geo) : N 40 deg 26' 45.08" E 356 deg 17' 26.76" antenna WGS 84 (geo) : 40.445854 deg 356.290766 deg (= -3.709234 deg) WGS 84 height : 772.9667 m |qc - header| position : 25 m Observation interval : 30.0000 seconds Total satellites w/ obs : 44 NAVSTAR GPS SVs w/o OBS : 1 24 NAVSTAR GPS SVs w/o NAV : 1 24 GLONASS SVs w/o OBS : 1 4 5 6 9 12 16 22 23 24 GLONASS SVs w/o NAV : 7 11 8 10 19 2 20 21 3 13 14 17 15 18 Rx tracking capability : 26 SVs Poss. # of obs epochs : 2880 Epochs w/ observations : 2880 Epochs repeated : 0 (0.00%) Possible obs > 0.0 deg: 30689 Possible obs > 0.0 deg: 30689 Complete obs > 0.0 deg: 27447 Missed obs > 0.0 deg: 3108 Deleted obs > 0.0 deg: 131 Obs w/ SV duplication : 0 (within non-repeated epochs) Moving average MP1 : 0.683116 m Moving average MP2 : 0.643757 m Points in MP moving avg : 50 No. of Rx clock offsets : 0 Total Rx clock drift : 0.000000 ms Rate of Rx clock drift : 0.000 ms/hr Avg time between resets : Inf minute(s) Freq no. and timecode : 2 10918 ffffff Report gap > than : 10.00 minute(s) epochs w/ msec clk slip : 0 other msec mp events : 0 (: 475) {expect ~= 1:50} IOD signifying a slip : >400.0 cm/minute IOD slips < 0.0 deg* : 12 IOD slips > 0.0 deg : 212 IOD or MP slips < 0.0*: 23 IOD or MP slips > 0.0 : 243 * or unknown elevation first epoch last epoch hrs dt #expt #have % mp1 mp2 o/slps SUM 09 11 27 00:00 09 11 27 23:59 24.00 30 30689 27447 89 0.68 0.64 113 Processing parameters are: Receiver tracking capability : 26 SVs Maximum ionospheric rate (L1) : 400.00 cm/min Report data gap greater than : 10.00 min Expected rms of MP1 multipath : 50.00 cm Expected rms of MP2 multipath : 65.00 cm Multipath slip sigma threshold : 4.00 cm % increase in MP rms for C/A | A/S : 100.00 % Points in MP moving averages : 50 Minimum signal to noise for L1 : 0 Minimum signal to noise for L2 : 0 Elevation mask (cutoff) : 0.00 degrees Elevation comparison threshold : 25.00 degrees Orbit path spline fit sample time : 10 min SVs w/ code data for position try : 5 Width of ASCII summary plot : 72 Data indicators on summary plot : yes Do ionospheric observable : yes Do ionospheric derivative : yes Do high-pass ionosphere observable : no Do multipath observables : yes Do 1-ms receiver clock slips : yes Tolerance for 1-ms clock slips : 1.00e-02 ms Do receiver LLI slips : yes Do plot file(s) : yes Observations start : 2009 Nov 27 00:00:00.000 Observations end : 2009 Nov 27 23:59:30.000 Observation interval : 30.0000 second(s) SV #+hor #+mask #reprt #compl L1 L2 P1 P2 CA L2C --- ------ ----- ------ ----- ------ ------ ------ ------ ------ ------ ------ ------ G02 1156 23.75 1156 23.75 1070 1065 1070 1065 0 1065 1070 0 G03 894 41.52 894 41.52 878 878 878 878 0 878 878 0 G04 1082 28.14 1082 28.14 906 901 906 901 0 901 906 0 G05 1042 31.90 1042 31.90 776 761 776 761 0 761 776 0 G06 926 41.59 926 41.59 908 905 908 905 0 905 908 0 G07 1132 26.05 1132 26.05 984 973 984 973 0 973 984 0 G08 1080 30.53 1080 30.53 866 846 866 846 0 846 866 0 G09 905 39.36 905 39.36 871 871 871 871 0 871 871 0 G10 967 36.14 967 36.14 746 735 746 735 0 735 746 0 G11 906 42.05 906 42.05 880 880 880 880 0 880 880 0 G12 888 41.36 888 41.36 861 860 861 860 0 860 861 0 G13 984 35.38 984 35.38 795 790 795 790 0 790 795 0 G14 1158 24.29 1158 24.29 1062 1062 1062 1062 0 1062 1062 0 G15 894 41.57 894 41.57 873 873 873 873 0 873 873 0 G16 920 38.58 920 38.58 785 783 785 783 0 783 785 0 G17 1166 23.38 1166 23.38 1080 1079 1080 1079 0 1079 1080 0 G18 1190 22.19 1190 22.19 1123 1116 1123 1116 0 1116 1123 0 G19 894 41.65 894 41.65 880 879 880 879 0 879 880 0 G20 906 41.26 906 41.26 869 869 869 869 0 869 869 0 G21 1114 27.08 1114 27.08 936 930 936 930 0 930 936 0 G22 1167 23.23 1167 23.23 1076 1071 1076 1071 0 1071 1076 0 G23 1057 30.50 1057 30.50 804 790 804 790 0 790 804 0 G25 1155 24.98 1155 24.98 1019 1012 1019 1012 0 1012 1019 0 G26 1104 26.74 1104 26.74 1005 1000 1005 1000 0 1000 1005 0 G27 959 40.90 959 40.90 916 916 916 916 0 916 916 0 G28 1186 23.59 1186 23.59 1117 1113 1117 1113 0 1113 1117 0 G29 968 35.63 968 35.63 785 785 785 785 0 785 785 0 G30 913 40.28 913 40.28 898 897 898 897 0 897 898 0 G31 1109 27.57 1109 27.57 984 983 984 983 0 983 984 0 G32 867 41.77 867 41.77 825 824 825 824 0 824 825 0 R07* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R11* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R08* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R10* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R19* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R02* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R20* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R21* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R03* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R13* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R14* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R17* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R15* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 R18* 0 0.00 0 0.00 0 0 0 0 0 0 0 0 * = SV with no NAV info Obs below mask ( 0.00 deg) : 13568 Obs above mask w/ no L1 : 3 Obs above mask w/ no L2 : 134 Obs above mask w/ no P1 | CA : 3 Obs above mask w/ no P2 | L2C : 134 Obs above mask w/ low L1 S/N : 0 Obs above mask w/ low L2 S/N : 0 Obs reported w/ code | phase : 41146 Obs deleted (any reason) : 13699 Obs complete : 27447 No. of Rx clock offsets : 0 Total Rx clock drift : 0.000000 ms Rate of Rx clock drift : 0.000000 ms/hr elev (deg) tot slps 5=% 1|m 15=% 2|m 85 - 90 168 0 0.000000 80 - 85 419 0 0.000000 75 - 80 873 0 0.000000 70 - 75 926 0 0.000000 65 - 70 1400 0 0.000000 60 - 65 1306 0 0.000000 55 - 60 1283 0 0.000000 50 - 55 1482 0 0.000000 45 - 50 1703 0 0.000000 40 - 45 1505 0 0.000000 35 - 40 1697 0 0.000000 30 - 35 1675 0 0.000000 25 - 30 2036 0 0.000000 20 - 25 2317 0 0.000000 15 - 20 2521 21 0.000000 = 10 - 15 2573 18 0.000000 = 5 - 10 2719 66 0.000000 ==== 0 - 5 814 107 0.000000 ========================== < 0 1 0 0.000000 MP1 RMS summary (per SV): slips L1 rx L2 rx slips L1 rx L2 rx SV obs> 0 # del MP1 rms [m] < 25 < 25 < 25 > 25 > 25 > 25 G02 1070 5 25.66 0.739176 13 1 1 0 0 0 G03 878 0 42.35 0.379041 0 0 0 0 0 0 G04 906 5 33.29 0.942278 13 0 0 0 0 0 G05 776 15 42.30 0.507542 13 0 5 0 0 0 G06 908 3 42.62 0.419175 2 0 0 0 0 0 G07 984 11 29.64 0.797755 13 0 2 0 0 0 G08 866 20 37.78 0.755022 8 1 1 0 0 0 G09 871 0 40.94 0.361942 3 0 1 0 0 0 G10 746 11 46.48 0.910304 10 0 5 0 0 0 G11 880 0 43.34 0.548351 4 0 0 0 0 0 G12 861 1 42.76 0.441706 4 0 1 0 0 0 G13 795 5 43.72 0.650432 8 0 1 0 0 0 G14 1062 0 26.37 0.646642 11 0 0 0 0 0 G15 873 0 42.60 0.533114 6 0 0 0 0 0 G16 785 2 45.07 1.680197 4 0 1 0 0 0 G17 1080 1 25.19 0.690371 6 0 0 0 0 0 G18 1123 7 23.60 0.734590 15 1 1 0 0 0 G19 880 1 42.45 0.414802 3 0 1 0 0 0 G20 869 0 43.03 0.425687 2 0 0 0 0 0 G21 936 6 31.82 1.304901 3 0 2 0 0 0 G22 1076 5 25.17 0.648016 6 0 1 0 0 0 G23 804 14 39.54 1.932093 16 0 3 0 0 0 G25 1019 7 28.09 0.937920 10 0 0 0 0 0 G26 1005 5 29.31 0.721906 6 0 0 0 0 0 G27 916 0 42.82 0.342241 0 0 0 0 0 0 G28 1117 4 25.03 0.832400 14 0 4 0 0 0 G29 785 0 43.70 0.893832 2 0 1 0 0 0 G30 898 1 41.08 0.366603 1 0 0 0 0 0 G31 984 1 30.85 0.714871 4 0 1 0 0 0 G32 825 1 43.96 0.526914 3 0 0 0 0 0 R07* 1033 4 0.00 0.380323 3 0 0 0 0 0 R11* 1114 12 0.00 0.527083 0 0 0 0 0 0 R08* 1094 6 0.00 0.797061 5 0 1 0 0 0 R10* 1145 58 0.00 0.731649 0 0 0 0 0 0 R19* 939 1 0.00 0.727331 1 0 0 0 0 0 R02* 1016 3 0.00 0.550886 2 0 0 0 0 0 R20* 948 13 0.00 0.559567 2 0 1 0 0 0 R21* 1049 1 0.00 0.495976 0 0 0 0 0 0 R03* 977 12 0.00 0.752190 1 0 0 0 0 0 R13* 796 1 0.00 0.453607 1 0 0 0 0 0 R14* 787 20 0.00 0.709102 3 0 0 0 0 0 R17* 920 4 0.00 0.844902 4 0 2 0 0 0 R15* 921 10 0.00 0.538046 0 0 0 0 0 0 R18* 828 1 0.00 0.383301 0 1 0 0 0 0 * = SV with no NAV info mean MP1 rms : 0.683148 m total mean elevation : 35.86 degrees # MP1 obs > 0 : 40868 # qc MP1 slips < 25 : 225 # Rvr L1 slips < 25 : 4 # Rvr L2 slips < 25 : 36 # qc MP1 slips > 25 : 0 # Rvr L1 slips > 25 : 0 # Rvr L2 slips > 25 : 0 elev (deg) tot slps 5=% 1|m 15=% 2|m 85 - 90 168 0 0.170477 ||| 80 - 85 419 0 0.182078 |||| 75 - 80 873 0 0.179911 |||| 70 - 75 926 0 0.201228 |||| 65 - 70 1400 0 0.194014 |||| 60 - 65 1306 0 0.199388 |||| 55 - 60 1283 0 0.212327 |||| 50 - 55 1482 0 0.283437 |||||| 45 - 50 1703 0 0.305578 |||||| 40 - 45 1505 0 0.346689 ||||||| 35 - 40 1697 0 0.373161 ||||||| 30 - 35 1675 0 0.429183 ||||||||| 25 - 30 2036 0 0.518280 |||||||||| 20 - 25 2317 0 0.644015 ||||||||||||| 15 - 20 2521 12 1.324438 |||||||||||||||||||||||||| 10 - 15 2573 17 1.323971 #||||||||||||||||||||||||| 5 - 10 2719 72 1.327052 #####|||||||||||||||||||||| 0 - 5 814 102 1.235120 ######################### < 0 1 0 0.000000 MP2 RMS summary (per SV): slips L1 rx L2 rx slips L1 rx L2 rx SV obs> 0 # del MP2 rms [m] < 25 < 25 < 25 > 25 > 25 > 25 G02 1070 5 25.66 1.019044 12 1 1 0 0 0 G03 878 0 42.35 0.466362 0 0 0 0 0 0 G04 906 5 33.29 0.662386 13 0 0 0 0 0 G05 776 15 42.30 0.802609 14 0 5 0 0 0 G06 908 3 42.62 0.418310 2 0 0 0 0 0 G07 984 11 29.64 0.791524 15 0 2 0 0 0 G08 866 20 37.78 0.897231 9 1 1 0 0 0 G09 871 0 40.94 0.340235 3 0 1 0 0 0 G10 746 11 46.48 0.597012 9 0 5 0 0 0 G11 880 0 43.34 0.571862 6 0 0 0 0 0 G12 861 1 42.76 0.334047 4 0 1 0 0 0 G13 795 5 43.72 0.580029 9 0 1 0 0 0 G14 1062 0 26.37 0.669799 15 0 0 0 0 0 G15 873 0 42.60 0.721767 4 0 0 0 0 0 G16 785 2 45.07 0.755584 9 0 1 0 0 0 G17 1080 1 25.19 0.637648 6 0 0 0 0 0 G18 1123 7 23.60 0.644490 15 1 1 0 0 0 G19 880 1 42.45 0.435576 3 0 1 0 0 0 G20 869 0 43.03 0.472084 3 0 0 0 0 0 G21 936 6 31.82 1.471354 6 0 2 0 0 0 G22 1076 5 25.17 0.699458 6 0 1 0 0 0 G23 804 14 39.54 2.536710 16 0 3 0 0 0 G25 1019 7 28.09 0.637741 11 0 0 0 0 0 G26 1005 5 29.31 0.528577 5 0 0 0 0 0 G27 916 0 42.82 0.298692 0 0 0 0 0 0 G28 1117 4 25.03 0.789518 16 0 4 0 0 0 G29 785 0 43.70 0.509840 2 0 1 0 0 0 G30 898 1 41.08 0.360243 1 0 0 0 0 0 G31 984 1 30.85 0.583148 3 0 1 0 0 0 G32 825 1 43.96 0.379883 3 0 0 0 0 0 R07* 1033 4 0.00 0.399393 3 0 0 0 0 0 R11* 1114 12 0.00 0.511539 0 0 0 0 0 0 R08* 1094 6 0.00 0.574245 6 0 1 0 0 0 R10* 1145 58 0.00 0.521604 0 0 0 0 0 0 R19* 939 1 0.00 0.673711 1 0 0 0 0 0 R02* 1016 3 0.00 0.670510 4 0 0 0 0 0 R20* 948 13 0.00 0.493890 3 0 1 0 0 0 R21* 1049 1 0.00 0.532495 1 0 0 0 0 0 R03* 977 12 0.00 0.668375 1 0 0 0 0 0 R13* 796 1 0.00 0.545415 1 0 0 0 0 0 R14* 787 20 0.00 0.614303 4 0 0 0 0 0 R17* 920 4 0.00 0.633890 6 0 2 0 0 0 R15* 921 10 0.00 0.611958 0 0 0 0 0 0 R18* 828 1 0.00 0.411308 0 1 0 0 0 0 * = SV with no NAV info mean MP2 rms : 0.643789 m total mean elevation : 35.86 degrees # MP2 obs > 0 : 40868 # qc MP2 slips < 25 : 250 # Rvr L1 slips < 25 : 4 # Rvr L2 slips < 25 : 36 # qc MP2 slips > 25 : 0 # Rvr L1 slips > 25 : 0 # Rvr L2 slips > 25 : 0 elev (deg) tot slps 5=% 1|m 15=% 2|m 85 - 90 168 0 0.123993 || 80 - 85 419 0 0.150785 ||| 75 - 80 873 0 0.130224 ||| 70 - 75 926 0 0.146241 ||| 65 - 70 1400 0 0.174301 ||| 60 - 65 1306 0 0.178883 |||| 55 - 60 1283 0 0.201942 |||| 50 - 55 1482 0 0.223775 |||| 45 - 50 1703 0 0.247498 ||||| 40 - 45 1505 0 0.314466 |||||| 35 - 40 1697 0 0.376832 |||||||| 30 - 35 1675 0 0.408167 |||||||| 25 - 30 2036 0 0.457421 ||||||||| 20 - 25 2317 0 0.621329 |||||||||||| 15 - 20 2521 13 1.492221 #||||||||||||||||||||||||||||| 10 - 15 2573 15 1.214582 #||||||||||||||||||||||| 5 - 10 2719 79 1.182671 #####||||||||||||||||||| 0 - 5 814 113 1.431874 ###########################|| < 0 1 0 0.000000 S/N L1 summary (per elevation bin): elev (deg) tot SN1 sig mean 2|0 4|0 6|0 8|0 85 - 90 169 3.922 50.197 ##||||||||||||||||||||||| 80 - 85 419 2.555 50.625 #|||||||||||||||||||||||| 75 - 80 873 1.780 50.590 #|||||||||||||||||||||||| 70 - 75 927 1.704 50.638 #|||||||||||||||||||||||| 65 - 70 1401 1.400 50.596 #|||||||||||||||||||||||| 60 - 65 1306 1.441 50.502 #|||||||||||||||||||||||| 55 - 60 1283 1.455 50.314 #|||||||||||||||||||||||| 50 - 55 1482 1.380 50.060 #|||||||||||||||||||||||| 45 - 50 1703 1.349 49.546 #|||||||||||||||||||||||| 40 - 45 1505 1.433 48.947 #||||||||||||||||||||||| 35 - 40 1697 1.393 48.040 #||||||||||||||||||||||| 30 - 35 1676 1.459 46.978 #|||||||||||||||||||||| 25 - 30 2038 1.600 45.463 #|||||||||||||||||||||| 20 - 25 2318 1.707 44.110 #||||||||||||||||||||| 15 - 20 2524 2.119 42.318 #|||||||||||||||||||| 10 - 15 2595 2.201 40.721 #||||||||||||||||||| 5 - 10 2792 2.280 38.929 #|||||||||||||||||| 0 - 5 870 2.802 37.057 #|||||||||||||||||| < 0 1 0.000 0.000 S/N L2 summary (per elevation bin): elev (deg) tot SN2 sig mean 2|0 4|0 6|0 8|0 85 - 90 169 3.991 50.300 ##||||||||||||||||||||||| 80 - 85 419 2.699 50.845 #|||||||||||||||||||||||| 75 - 80 873 1.993 50.387 #|||||||||||||||||||||||| 70 - 75 927 1.853 49.882 #|||||||||||||||||||||||| 65 - 70 1401 1.533 49.377 #|||||||||||||||||||||||| 60 - 65 1306 1.559 48.794 #||||||||||||||||||||||| 55 - 60 1283 1.576 48.010 #||||||||||||||||||||||| 50 - 55 1482 1.567 47.106 #||||||||||||||||||||||| 45 - 50 1703 1.701 45.890 #|||||||||||||||||||||| 40 - 45 1505 1.773 44.584 #||||||||||||||||||||| 35 - 40 1697 1.909 42.861 #|||||||||||||||||||| 30 - 35 1676 1.914 41.274 #|||||||||||||||||||| 25 - 30 2038 2.098 39.525 #||||||||||||||||||| 20 - 25 2318 2.345 37.821 #|||||||||||||||||| 15 - 20 2521 2.975 36.108 #||||||||||||||||| 10 - 15 2574 3.252 34.407 ##||||||||||||||| 5 - 10 2727 4.083 32.154 ##|||||||||||||| 0 - 5 828 5.221 30.453 ###|||||||||||| < 0 1 0.000 0.000