修改后b34f版本的rtkplot

% TIME (GPST) SAT AZ(deg) EL(deg) SNR(dBHz) L1/LC MP(m) 2022/07/19 09:55:30.0 G01 254.5 3.1 37.90 -0.0540 2022/07/19 09:56:00.0 G01 254.7 3.3 36.70 -0.0539 2022/07/19 09:56:30.0 G01 254.8 3.4 37.95 0.1911 2022/07/19 09:57:00.0 G01 255.0 3.6 37.20 -0.0250 2022/07/19 09:57:30.0 G01 255.1 3.8 39.95 0.0159 2022/07/19 09:58:00.0 G01 255.3 3.9 38.75 0.1325 2022/07/19 09:58:30.0 G01 255.4 4.1 39.15 0.1572 2022/07/19 09:59:00.0 G01 255.6 4.2 39.40 0.2346 2022/07/19 09:59:30.0 G01 255.7 4.4 38.30 0.3423 2022/07/19 10:00:00.0 G01 255.9 4.6 40.90 0.2632 2022/07/19 10:00:30.0 G01 256.0 4.7 36.90 0.0523 2022/07/19 10:01:00.0 G01 256.2 4.9 40.30 -0.1296 2022/07/19 10:01:30.0 G01 256.3 5.0 38.85 -0.0909 2022/07/19 10:02:00.0 G01 256.5 5.2 40.10 0.0047 2022/07/19 10:02:30.0 G01 256.6 5.4 37.75 -0.1891 2022/07/19 10:03:00.0 G01 256.8 5.5 39.10 -0.2394 2022/07/19 10:03:30.0 G01 256.9 5.7 37.50 -0.2058 2022/07/19 10:04:00.0 G01 257.1 5.8 37.95 -0.1244 2022/07/19 10:04:30.0 G01 257.2 6.0 37.20 -0.1011 2022/07/19 10:05:00.0 G01 257.4 6.2 36.55 -0.1979 2022/07/19 10:05:30.0 G01 257.5 6.3 36.60 -0.2699 2022/07/19 10:06:00.0 G01 257.7 6.5 38.15 -0.2247 2022/07/19 10:06:30.0 G01 257.8 6.7 38.70 -0.1146 2022/07/19 10:07:00.0 G01 258.0 6.8 38.10 0.0318 2022/07/19 10:07:30.0 G01 258.1 7.0 38.05 0.1009 2022/07/19 10:08:00.0 G01 258.3 7.1 39.00 0.0246 2022/07/19 10:08:30.0 G01 258.5 7.3 39.75 0.1310 2022/07/19 10:09:00.0 G01 258.6 7.5 40.05 0.0983 2022/07/19 10:09:30.0 G01 258.8 7.6 40.30 0.0281 2022/07/19 10:10:00.0 G01 258.9 7.8 40.70 0.0871 2022/07/19 10:10:30.0 G01 259.1 7.9 40.90 0.3035 2022/07/19 10:11:00.0 G01 259.2 8.1 39.40 0.1525 2022/07/19 10:11:30.0 G01 259.4 8.3 40.10 0.0492 2022/07/19 10:12:00.0 G01 259.5 8.4 39.35 0.0492 2022/07/19 10:12:30.0 G01 259.7 8.6 39.30 -0.1592 2022/07/19 10:13:00.0 G01 259.9 8.7 39.65 -0.2138 2022/07/19 10:13:30.0 G01 260.0 8.9 39.25 -0.1529 2022/07/19 10:14:00.0 G01 260.2 9.1 39.55 -0.0379 2022/07/19 10:14:30.0 G01 260.3 9.2 38.05 -0.0407 2022/07/19 10:15:00.0 G01 260.5 9.4 36.80 -0.2560 2022/07/19 10:15:30.0 G01 260.6 9.6 38.30 -0.2415 2022/07/19 10:16:00.0 G01 260.8 9.7 38.35 -0.2312 2022/07/19 10:16:30.0 G01 261.0 9.9 37.00 -0.3703 2022/07/19 10:17:00.0 G01 261.1 10.0 38.80 -0.2734 2022/07/19 10:17:30.0 G01 261.3 10.2 39.25 -0.1554 2022/07/19 10:18:00.0 G01 261.4 10.4 39.05 -0.2403 2022/07/19 10:18:30.0 G01 261.6 10.5 40.50 -0.2020 2022/07/19 10:19:00.0 G01 261.8 10.7 41.30 -0.0028 2022/07/19 10:19:30.0 G01 261.9 10.8 40.70 0.0894 2022/07/19 10:20:00.0 G01 262.1 11.0 41.80 0.0793 2022/07/19 10:20:30.0 G01 262.2 11.2 42.20 0.2645 2022/07/19 10:21:00.0 G01 262.4 11.3 41.50 0.2456 2022/07/19 10:21:30.0 G01 262.6 11.5 41.50 0.1167 2022/07/19 10:22:00.0 G01 262.7 11.7 41.45 0.1453 2022/07/19 10:22:30.0 G01 262.9 11.8 41.40 0.1454 2022/07/19 10:23:00.0 G01 263.0 12.0 40.75 0.2341 2022/07/19 10:23:30.0 G01 263.2 12.1 38.40 0.1247 2022/07/19 10:24:00.0 G01 263.4 12.3 38.35 -0.2978 2022/07/19 10:24:30.0 G01 263.5 12.5 37.15 -0.4617 2022/07/19 10:25:00.0 G01 263.7 12.6 37.80 -0.4482 2022/07/19 10:25:30.0 G01 263.9 12.8 38.15 -0.5662 2022/07/19 10:26:00.0 G01 264.0 13.0 38.70 -0.3877 2022/07/19 10:26:30.0 G01 264.2 13.1 39.90 -0.3039 2022/07/19 10:27:00.0 G01 264.3 13.3 39.65 -0.2305 2022/07/19 10:27:30.0 G01 264.5 13.4 40.00 -0.0963 2022/07/19 10:28:00.0 G01 264.7 13.6 40.70 -0.0255 2022/07/19 10:28:30.0 G01 264.8 13.8 40.65 -0.0695 2022/07/19 10:29:00.0 G01 265.0 13.9 41.10 -0.0999 2022/07/19 10:29:30.0 G01 265.2 14.1 41.30 -0.0698 2022/07/19 10:30:00.0 G01 265.3 14.3 42.10 0.0740 2022/07/19 10:30:30.0 G01 265.5 14.4 42.00 0.0979 2022/07/19 10:31:00.0 G01 265.7 14.6 42.40 0.2244 2022/07/19 10:31:30.0 G01 265.8 14.8 41.80 0.2191 2022/07/19 10:32:00.0 G01 266.0 14.9 41.30 0.1501 2022/07/19 10:32:30.0 G01 266.2 15.1 40.65 -0.0909 2022/07/19 10:33:00.0 G01 266.3 15.2 39.70 -0.2375 2022/07/19 10:33:30.0 G01 266.5 15.4 39.65 -0.2656 2022/07/19 10:34:00.0 G01 266.7 15.6 40.25 -0.2469 2022/07/19 10:34:30.0 G01 266.8 15.7 41.30 -0.2483 2022/07/19 10:35:00.0 G01 267.0 15.9 40.70 -0.0651 2022/07/19 10:35:30.0 G01 267.2 16.1 41.30 0.0775 2022/07/19 10:36:00.0 G01 267.3 16.2 40.55 0.0292 2022/07/19 10:36:30.0 G01 267.5 16.4 40.15 -0.1464 2022/07/19 10:37:00.0 G01 267.7 16.6 40.80 -0.1807 2022/07/19 10:37:30.0 G01 267.8 16.7 41.55 -0.1511 2022/07/19 10:38:00.0 G01 268.0 16.9 41.80 -0.2039 2022/07/19 10:38:30.0 G01 268.2 17.0 41.65 -0.1705 2022/07/19 10:39:00.0 G01 268.3 17.2 41.40 -0.0480 2022/07/19 10:39:30.0 G01 268.5 17.4 41.05 -0.0195 2022/07/19 10:40:00.0 G01 268.7 17.5 40.80 -0.1515 2022/07/19 10:40:30.0 G01 268.8 17.7 41.15 -0.1538 2022/07/19 10:41:00.0 G01 269.0 17.9 41.65 -0.1011 2022/07/19 10:41:30.0 G01 269.2 18.0 41.65 0.0378 2022/07/19 10:42:00.0 G01 269.3 18.2 41.95 -0.0503 2022/07/19 10:42:30.0 G01 269.5 18.4 40.90 -0.1159 2022/07/19 10:43:00.0 G01 269.7 18.5 42.10 -0.1266 2022/07/19 10:43:30.0 G01 269.9 18.7 41.90 0.0718 2022/07/19 10:44:00.0 G01 270.0 18.9 42.60 0.0322 2022/07/19 10:44:30.0 G01 270.2 19.0 41.70 -0.0163 2022/07/19 10:45:00.0 G01 270.4 19.2 41.95 -0.0202 2022/07/19 10:45:30.0 G01 270.5 19.4 42.45 -0.0246 2022/07/19 10:46:00.0 G01 270.7 19.5 41.90 0.0850 2022/07/19 10:46:30.0 G01 270.9 19.7 41.85 0.0526 2022/07/19 10:47:00.0 G01 271.1 19.8 41.35 -0.0464 2022/07/19 10:47:30.0 G01 271.2 20.0 41.35 -0.2288 2022/07/19 10:48:00.0 G01 271.4 20.2 41.50 -0.3175 2022/07/19 10:48:30.0 G01 271.6 20.3 40.70 -0.4024 2022/07/19 10:49:00.0 G01 271.7 20.5 41.55 -0.3933 2022/07/19 10:49:30.0 G01 271.9 20.7 41.70 -0.1619 2022/07/19 10:50:00.0 G01 272.1 20.8 41.80 -0.1396 2022/07/19 10:50:30.0 G01 272.3 21.0 42.05 -0.0873 2022/07/19 10:51:00.0 G01 272.4 21.2 42.20 -0.0056 2022/07/19 10:51:30.0 G01 272.6 21.3 43.50 -0.0195 2022/07/19 10:52:00.0 G01 272.8 21.5 43.35 0.1557 2022/07/19 10:52:30.0 G01 273.0 21.7 43.75 0.18