# LTCHIST histogram summary of last 21 days read Thu May 26 09:00:37 2005 # # column 1: reference time scale [nanosec] # column 2: TrueTime 1PPS pulse drift vs. LTC 50MHz oscillator (5-min. avg.) # column 3: Motorola 1PPS pulse drift vs. LTC 50MHz oscillator (5-min. avg.) # column 4: Rubidium 1PPS pulse drift vs. LTC 50MHz oscillator (5-min. avg.) # column 5: TrueTime {TRG-1PPS} time vs. TTET time of TRG pulse # column 6: Motorola {TRG-1PPS} time vs. TTET time of TRG pulse # column 7: Rubidium {TRG-1PPS} time vs. TTET time of TRG pulse # column 8: TrueTime 1PPS vs. Rubidium 1PPS # column 9: Motorola 1PPS vs. Rubidium 1PPS # column 10: TrueTime 1PPS vs. Motorola 1PPS # # note: columns 2-10 should stay within -200...+200 nsec with peak at 0 nsec # and >99% within -100...+100 nsec # If columns 5-7 are empty (all 0) then it means there were no # spill trigger events during the observation period. # # nsec TT_PPS MO_PPS Rub_PPS TT-TTET MO-TTET Rb-TTET TT-Rub Mot-Rub TT-Mot 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0 0 0 0 0 0 1960 0 0 0 0 0 0 0 0 0 1980 0 0 0 0 0 0 0 0 0 2000 0 0 0 0 0 0 0 0 0 2020 0 0 0 0 0 0 0 0 0 2040 0 0 0 0 0 0 0 0 0 2060 0 0 0 0 0 0 0 0 0 2080 0 0 0 0 0 0 0 0 0 2100 0 0 0 0 0 0 0 0 0 2120 0 0 0 0 0 0 0 0 0 2140 0 0 0 0 0 0 0 0 0 2160 0 0 0 0 0 0 0 0 0 2180 0 0 0 0 0 0 0 0 0 2200 0 0 0 0 0 0 0 0 0 2220 0 0 0 0 0 0 0 0 0 2240 0 0 0 0 0 0 0 0 0 2260 0 0 0 0 0 0 0 0 0 2280 0 0 0 0 0 0 0 0 0 2300 0 0 0 0 0 0 0 0 0 2320 0 0 0 0 0 0 0 0 0 2340 0 0 0 0 0 0 0 0 0 2360 0 0 0 0 0 0 0 0 0 2380 0 0 0 0 0 0 0 0 0 2400 0 0 0 0 0 0 0 0 0 2420 0 0 0 0 0 0 0 0 0 2440 0 0 0 0 0 0 0 0 0 2460 0 0 0 0 0 0 0 0 0 2480 0 0 0 0 0 0 0 0 0 2500 0 0 0 0 0 0 0 0 0 2520 0 0 0 0 0 0 0 0 0 2540 0 0 0 0 0 0 0 0 0 2560 0 0 0 0 0 0 0 0 0 2580 0 0 0 0 0 0 0 0 0 2600 0 0 0 0 0 0 0 0 0 2620 0 0 0 0 0 0 0 0 0 2640 0 0 0 0 0 0 0 0 0 2660 0 0 0 0 0 0 0 0 0 2680 0 0 0 0 0 0 0 0 0 2700 0 0 0 0 0 0 0 0 0 2720 0 0 0 0 0 0 0 0 0 2740 0 0 0 0 0 0 0 0 0 2760 0 0 0 0 0 0 0 0 0 2780 0 0 0 0 0 0 0 0 0 2800 0 0 0 0 0 0 0 0 0 2820 0 0 0 0 0 0 0 0 0 2840 0 0 0 0 0 0 0 0 0 2860 0 0 0 0 0 0 0 0 0 2880 0 0 0 0 0 0 0 0 0 2900 0 0 0 0 0 0 0 0 0 2920 0 0 0 0 0 0 0 0 0 2940 0 0 0 0 0 0 0 0 0 2960 0 0 0 0 0 0 0 0 0 2980 0 0 0 0 0 0 0 0 0 3000 42 0 0 0 0 0 0 0 0 #------------------------------------------------------------------------------ # sum: 1790940 1790940 1790940 0 0 0 1790940 1790940 1790940 total samples # good: 100.00 99.97 100.00 0 0 0 100.00 99.98 100.00 % within -100...+100 nsec # ok: 100.00 100.00 100.00 0 0 0 100.00 100.00 100.00 % within -200...+200 nsec # bad: 0.00 0.00 0.00 0 0 0 0.00 0.00 0.00 % not within -200...+200 nsec # mean: 7.49 1.73 10.00 0.00 0.00 0.00 -10.51 -20.76 20.25 nsec mean from target (0 nsec # sdev: 7.77 40.71 0.00 0.00 0.00 0.00 9.97 31.96 32.59 nsec standard deviation # 2sig: 15.53 81.42 0.00 0.00 0.00 0.00 19.93 63.93 65.18 nsec 2-sigma deviation