• Previous call tries 3 | • 82.00 of 150.00 AH used of 24V (45.33% remains) | |
• Previous NAKs 0, Timeouts 0 | • 37.81 of 100.00 AH used of 10V (62.19% remains) | |
• Surface angle -4.0 deg, depth 5.33 m | • Intended pitch -13.0 deg, speed -7.021 cm/s | |
• GPS1 time: 0 s, HDOP was 3112.0 m | ||
• GPS2 time: 0 s, HDOP was 3112.0 m | • Transponder ping count: 196 | |
• Time spent turning 0 s |
t(s) | depth(m) | w(cm/s) | num pts | t(s) | GC phase | pitch | roll | VBD | pit | rol | VBD | volts | |||||||||||||||||
ctl(cm) | t(s) | A | pos(AD) | rate | t(s) | A | pos(AD) | rate | ctl(cc) | t(s) | A | pos(AD) | rate | eff | r | e | r | e | r | e | pit | roll | vbd | flags | |||||
12 | end surface: CONTROL_FINISHED_OK | ||||||||||||||||||||||||||||
12 | begin dive | ||||||||||||||||||||||||||||
16 | - | - | - | 23 | VBD | -0.99 | - | - | 2695 | - | - | - | 1735 | - | -146.0 | -5.40 | - | 2567 | - | - | - | - | - | - | - | - | - | - | - |
27 | 4.4 | - | 1 | 62 | roll | -0.99 | 0.62 | 0.058 | 2448 | -398.4 | 1.50 | 0.086 | 807 | -618.7 | -146.0 | -27.80 | - | 3248 | -24.5 | - | - | - | - | - | - | - | - | - | - |
76 | 5.9 | -4.5 | 9 | 83 | done | -0.72 | 0.30 | 0.148 | 2522 | 246.7 | 2.33 | 0.062 | 2233 | 612.0 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
422 | 31.8 | -7.9 | 70 | 428 | roll | -0.77 | - | - | 2514 | - | 2.22 | 0.077 | 3594 | 613.1 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
515 | 39.4 | -8.2 | 86 | 521 | done | -0.83 | - | - | 2513 | - | 2.17 | 0.051 | 2208 | -638.7 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
859 | 64.7 | -7.2 | 147 | 865 | roll | -0.83 | - | - | 2513 | - | 2.22 | 0.064 | 812 | -628.8 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
974 | 73.0 | -7.2 | 167 | 980 | done | -0.83 | - | - | 2504 | - | 2.33 | 0.064 | 2230 | 608.6 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
1321 | 99.5 | -8.5 | 228 | 1327 | roll | -0.83 | - | - | 2493 | - | 2.25 | 0.077 | 3604 | 610.7 | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
1428 | 108.6 | -8.0 | 234 | 1434 | done | -0.83 | - | - | 2493 | - | 2.17 | 0.051 | 2226 | -635.0 | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
1745 | 131.0 | -6.5 | 250 | 1746 | done | -0.83 | - | - | 2493 | - | - | - | 2226 | - | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
2056 | 150.7 | -6.8 | 265 | 2057 | done | -0.83 | - | - | 2493 | - | - | - | 2226 | - | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
2363 | 172.8 | -7.4 | 280 | 2367 | roll | -0.83 | - | - | 2493 | - | 2.25 | 0.065 | 822 | -624.0 | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
2486 | 182.4 | -7.7 | 285 | 2490 | done | -0.83 | - | - | 2483 | - | 2.33 | 0.065 | 2234 | 606.0 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
2808 | 204.3 | -6.7 | 301 | 2812 | roll | -0.83 | - | - | 2473 | - | 2.25 | 0.078 | 3604 | 608.9 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
3015 | 219.6 | -7.4 | 310 | 3020 | done | -0.83 | 0.12 | 0.149 | 2504 | 258.3 | 2.17 | 0.052 | 2228 | -634.1 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
3344 | 238.1 | -5.6 | 326 | 3349 | roll | -0.91 | 0.10 | 0.095 | 2462 | -420.0 | 2.28 | 0.064 | 814 | -620.2 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
3424 | 243.9 | -7.1 | 329 | 3431 | done | -0.79 | 0.20 | 0.137 | 2508 | 230.0 | 2.35 | 0.064 | 2243 | 608.1 | -146.0 | - | - | 3249 | - | - | - | - | - | - | - | - | - | - | - |
3741 | 261.3 | -5.9 | 345 | 3743 | done | -0.90 | 0.10 | 0.094 | 2464 | -440.0 | - | - | 2243 | - | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
4049 | 286.2 | -8.2 | 360 | 4054 | roll | -0.85 | 0.12 | 0.151 | 2499 | 291.7 | 2.35 | 0.064 | 814 | -608.1 | -146.0 | - | - | 3249 | - | - | - | - | - | - | - | - | - | - | - |
4112 | 290.8 | -7.4 | 363 | 4116 | done | -0.85 | - | - | 2491 | - | 2.35 | 0.064 | 2245 | 608.9 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
4446 | 310.7 | -5.2 | 379 | 4450 | roll | -0.90 | - | - | 2481 | - | 2.22 | 0.077 | 3599 | 609.9 | -146.0 | - | - | 3249 | - | - | - | - | - | - | - | - | - | - | - |
4525 | 315.2 | -5.6 | 382 | 4529 | done | -0.95 | - | - | 2481 | - | 2.17 | 0.051 | 2219 | -635.9 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
4848 | 331.6 | -5.1 | 398 | 4852 | roll | -0.95 | - | - | 2481 | - | 2.22 | 0.064 | 822 | -629.3 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
4949 | 337.5 | -6.0 | 402 | 4953 | done | -0.95 | - | - | 2471 | - | 2.33 | 0.063 | 2238 | 607.7 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
5271 | 355.8 | -5.8 | 418 | 5275 | roll | -0.95 | - | - | 2460 | - | 2.25 | 0.076 | 3609 | 609.3 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
5362 | 361.5 | -6.5 | 422 | 5366 | done | -0.95 | - | - | 2460 | - | 2.17 | 0.050 | 2228 | -636.4 | -146.0 | - | - | 3250 | - | - | - | - | - | - | - | - | - | - | - |
5695 | 381.9 | -6.1 | 438 | 5700 | roll | -0.90 | 0.10 | 0.156 | 2486 | 260.0 | 2.25 | 0.061 | 822 | -624.9 | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
5787 | 387.1 | -5.8 | 442 | 5791 | done | -0.90 | - | - | 2479 | - | 2.33 | 0.061 | 2236 | 606.9 | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
6113 | 404.3 | -5.1 | 456 | 6117 | roll | -0.90 | - | - | 2468 | - | 2.22 | 0.074 | 3598 | 613.5 | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
6181 | 408.3 | -5.8 | 457 | 6185 | done | -0.90 | - | - | 2468 | - | 2.15 | 0.048 | 2224 | -639.1 | -146.0 | - | - | 3251 | - | - | - | - | - | - | - | - | - | - | - |
6530 | 427.1 | -5.4 | 466 | 6534 | roll | -0.90 | - | - | 2468 | - | 2.25 | 0.061 | 815 | -626.2 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
6587 | 430.4 | -5.9 | 467 | 6592 | done | -0.85 | 0.15 | 0.133 | 2499 | 206.7 | 2.35 | 0.061 | 2240 | 606.4 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
6901 | 445.4 | -4.9 | 475 | 6905 | roll | -0.96 | 0.12 | 0.081 | 2436 | -525.0 | 2.22 | 0.073 | 3595 | 610.4 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
6996 | 452.6 | -7.8 | 477 | 7001 | done | -0.86 | 0.20 | 0.142 | 2491 | 275.0 | 2.15 | 0.048 | 2219 | -640.0 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
7321 | 470.9 | -5.6 | 485 | 7325 | roll | -0.94 | - | - | 2492 | - | 2.22 | 0.060 | 816 | -632.0 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
7379 | 474.4 | -6.6 | 486 | 7383 | done | -0.99 | - | - | 2484 | - | 2.33 | 0.060 | 2239 | 610.7 | -146.0 | - | - | 3252 | - | - | - | - | - | - | - | - | - | - | - |
7699 | 493.3 | -5.9 | 494 | 7703 | roll | -1.05 | 0.12 | 0.078 | 2418 | -550.0 | 2.22 | 0.072 | 3600 | 613.1 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
7800 | 501.3 | -8.1 | 496 | 7805 | done | -0.88 | 0.25 | 0.140 | 2490 | 288.0 | 2.15 | 0.047 | 2220 | -641.9 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
8120 | 519.1 | -5.5 | 504 | 8124 | roll | -0.96 | - | - | 2490 | - | 2.22 | 0.059 | 816 | -632.4 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
8216 | 524.8 | -5.7 | 506 | 8221 | done | -1.01 | 0.10 | 0.082 | 2437 | -530.0 | 2.33 | 0.059 | 2236 | 609.4 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
8537 | 545.9 | -6.6 | 514 | 8541 | roll | -0.91 | 0.17 | 0.146 | 2478 | 241.2 | 2.22 | 0.071 | 3594 | 611.7 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
8666 | 553.1 | -5.4 | 516 | 8672 | done | -0.99 | - | - | 2478 | - | 2.15 | 0.046 | 2213 | -642.3 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
8999 | 570.1 | -5.1 | 525 | 9003 | roll | -0.99 | - | - | 2478 | - | 2.20 | 0.059 | 821 | -632.7 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
9055 | 573.2 | -5.5 | 526 | 9059 | done | -0.99 | - | - | 2468 | - | 2.30 | 0.058 | 2238 | 616.1 | -146.0 | - | - | 3253 | - | - | - | - | - | - | - | - | - | - | - |
9375 | 589.9 | -5.2 | 534 | 9376 | done | -0.99 | - | - | 2468 | - | - | - | 2238 | - | -146.0 | - | - | 3254 | - | - | - | - | - | - | - | - | - | - | - |
9701 | 607.2 | -5.5 | 542 | 9702 | done | -0.99 | - | - | 2468 | - | - | - | 2238 | - | -146.0 | - | - | 3254 | - | - | - | - | - | - | - | - | - | - | - |
10025 | 624.9 | -5.3 | 550 | 10026 | done | -0.99 | - | - | 2468 | - | - | - | 2238 | - | -146.0 | - | - | 3254 | - | - | - | - | - | - | - | - | - | - | - |
10350 | 641.2 | -5.0 | 558 | 10351 | done | -0.99 | - | - | 2468 | - | - | - | 2238 | - | -146.0 | - | - | 3254 | - | - | - | - | - | - | - | - | - | - | - |
10590 | end dive: TARGET_DEPTH_EXCEEDED | ||||||||||||||||||||||||||||
10590 | begin apogee | ||||||||||||||||||||||||||||
10598 | 652.9 | 4.6 | 564 | 10732 | done | -0.31 | 0.47 | 0.125 | 2616 | 314.9 | - | - | 1733 | - | - | 131.27 | 1.237 | 2651 | -4.6 | 0.275 | - | - | - | - | - | - | - | - | - |
10733 | end apogee: CONTROL_FINISHED_OK | ||||||||||||||||||||||||||||
10733 | begin climb | ||||||||||||||||||||||||||||
10737 | 654.0 | - | 567 | 10880 | roll | 0.99 | 0.90 | 0.098 | 2896 | 311.1 | 2.65 | 0.063 | 3153 | 535.8 | 146.0 | 135.88 | 1.157 | 2054 | -4.4 | 0.282 | - | - | - | - | - | - | - | - | - |
10912 | 637.6 | 12.8 | 571 | 10917 | done | 0.65 | 0.32 | 0.134 | 2821 | -234.4 | 2.47 | 0.048 | 1733 | -574.9 | 146.0 | - | - | 2049 | - | - | - | - | - | - | - | - | - | - | - |
11245 | 613.6 | 6.9 | 579 | 11246 | done | 0.72 | - | - | 2821 | - | - | - | 1733 | - | 148.8 | - | - | 2046 | - | - | - | - | - | - | - | - | - | - | - |
11569 | 591.4 | 6.9 | 587 | 11583 | roll | 0.77 | 0.10 | 0.081 | 2869 | 480.0 | 2.40 | 0.064 | 3162 | 595.4 | 153.6 | 6.60 | 0.944 | 2023 | -3.5 | 0.248 | - | - | - | - | - | - | - | - | - |
11601 | 588.4 | 10.1 | 587 | 11606 | done | 0.59 | 0.25 | 0.132 | 2806 | -252.0 | 2.28 | 0.048 | 1725 | -630.3 | 153.6 | - | - | 2022 | - | - | - | - | - | - | - | - | - | - | - |
11934 | 568.8 | 5.6 | 595 | 11976 | done | 0.77 | 0.15 | 0.067 | 2874 | 453.3 | - | - | 1725 | - | 196.3 | 39.20 | 1.161 | 1849 | -4.4 | 0.246 | - | - | - | - | - | - | - | - | - |
12298 | 533.6 | 9.8 | 604 | 12302 | roll | 0.66 | 0.17 | 0.124 | 2822 | -305.9 | 2.35 | 0.062 | 3165 | 612.8 | 196.3 | - | - | 1842 | - | - | - | - | - | - | - | - | - | - | - |
12314 | 532.1 | 9.4 | 604 | 12318 | done | 0.60 | - | - | 2830 | - | 2.25 | 0.048 | 1735 | -635.6 | 196.3 | - | - | 1841 | - | - | - | - | - | - | - | - | - | - | - |
12664 | 508.2 | 7.0 | 613 | 12666 | done | 0.68 | - | - | 2830 | - | - | - | 1735 | - | 198.2 | - | - | 1840 | - | - | - | - | - | - | - | - | - | - | - |
12988 | 484.0 | 7.4 | 621 | 12992 | roll | 0.75 | - | - | 2830 | - | 2.30 | 0.064 | 3150 | 615.2 | 198.2 | - | - | 1840 | - | - | - | - | - | - | - | - | - | - | - |
13028 | 480.6 | 8.8 | 621 | 13034 | done | 0.75 | - | - | 2840 | - | 2.22 | 0.048 | 1729 | -640.1 | 198.2 | - | - | 1838 | - | - | - | - | - | - | - | - | - | - | - |
13360 | 454.5 | 7.8 | 630 | 13364 | roll | 0.75 | - | - | 2840 | - | 2.33 | 0.063 | 3161 | 614.6 | 198.2 | - | - | 1838 | - | - | - | - | - | - | - | - | - | - | - |
13371 | 453.4 | 7.8 | 630 | 13374 | done | 0.75 | - | - | 2850 | - | 2.22 | 0.048 | 1736 | -641.9 | 198.2 | - | - | 1838 | - | - | - | - | - | - | - | - | - | - | - |
13690 | 429.3 | 7.5 | 638 | 13694 | roll | 0.75 | - | - | 2850 | - | 2.30 | 0.064 | 3158 | 618.3 | 198.2 | - | - | 1838 | - | - | - | - | - | - | - | - | - | - | - |
13718 | 426.8 | 8.6 | 638 | 13722 | done | 0.69 | 0.12 | 0.137 | 2824 | -216.7 | 2.22 | 0.048 | 1735 | -641.0 | 198.2 | - | - | 1838 | - | - | - | - | - | - | - | - | - | - | - |
14061 | 404.1 | 6.6 | 647 | 14078 | done | 0.84 | 0.12 | 0.074 | 2883 | 491.7 | - | - | 1735 | - | 212.8 | 13.95 | 1.035 | 1782 | -4.0 | 0.178 | - | - | - | - | - | - | - | - | - |
14372 | 373.5 | 10.1 | 660 | 14373 | done | 0.73 | 0.17 | 0.123 | 2830 | -311.8 | - | - | 1735 | - | 212.8 | - | - | 1780 | - | - | - | - | - | - | - | - | - | - | - |
14679 | 354.5 | 5.6 | 675 | 14727 | roll | 0.92 | 0.17 | 0.066 | 2907 | 452.9 | 2.42 | 0.064 | 3150 | 584.7 | 257.3 | 41.00 | 1.053 | 1601 | -4.4 | 0.167 | - | - | - | - | - | - | - | - | - |
14735 | 349.1 | 10.1 | 677 | 14742 | done | 0.72 | 0.28 | 0.131 | 2836 | -253.6 | 2.28 | 0.048 | 1735 | -620.6 | 257.3 | - | - | 1599 | - | - | - | - | - | - | - | - | - | - | - |
15052 | 327.6 | 6.3 | 693 | 15087 | roll | 0.89 | 0.12 | 0.072 | 2908 | 600.0 | 2.38 | 0.062 | 321 | -594.1 | 279.4 | 22.33 | 0.935 | 1511 | -3.9 | 0.157 | - | - | - | - | - | - | - | - | - |
15099 | 323.2 | 9.7 | 695 | 15104 | done | 0.80 | 0.20 | 0.128 | 2850 | -290.0 | 2.35 | 0.051 | 1742 | 604.7 | 279.4 | - | - | 1510 | - | - | - | - | - | - | - | - | - | - | - |
15422 | 297.4 | 8.0 | 711 | 15427 | roll | 0.92 | 0.12 | 0.074 | 2906 | 466.7 | 2.33 | 0.064 | 3164 | 610.3 | 279.4 | - | - | 1505 | - | - | - | - | - | - | - | - | - | - | - |
15468 | 291.8 | 13.4 | 713 | 15472 | done | 0.68 | 0.30 | 0.132 | 2827 | -263.3 | 2.28 | 0.049 | 1728 | -629.8 | 279.4 | - | - | 1504 | - | - | - | - | - | - | - | - | - | - | - |
15789 | 267.9 | 9.0 | 729 | 15791 | done | 1.34 | 0.45 | 0.100 | 2977 | 333.3 | - | - | 1728 | - | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
16099 | 227.4 | 14.6 | 744 | 16104 | roll | 1.02 | 0.25 | 0.137 | 2908 | -276.0 | 2.28 | 0.062 | 324 | -615.8 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
16155 | 220.9 | 10.2 | 746 | 16162 | done | 1.02 | - | - | 2908 | - | 2.33 | 0.051 | 1753 | 613.3 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
16471 | 188.0 | 10.1 | 762 | 16475 | roll | 0.95 | - | - | 2908 | - | 2.28 | 0.067 | 3154 | 614.5 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
16507 | 184.5 | 11.5 | 763 | 16512 | done | 0.81 | 0.22 | 0.127 | 2851 | -259.1 | 2.25 | 0.050 | 1729 | -633.3 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
16824 | 163.9 | 7.2 | 778 | 16828 | roll | 1.00 | 0.15 | 0.072 | 2931 | 533.3 | 2.28 | 0.064 | 330 | -613.6 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
16835 | 163.0 | 7.4 | 778 | 16842 | done | 1.16 | - | - | 2931 | - | 2.30 | 0.051 | 1742 | 613.9 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
17152 | 127.2 | 10.2 | 794 | 17157 | roll | 1.05 | 0.10 | 0.145 | 2911 | -200.0 | 2.35 | 0.063 | 323 | -603.8 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
17192 | 123.6 | 9.4 | 796 | 17195 | done | 1.05 | - | - | 2911 | - | 2.33 | 0.053 | 1753 | 613.7 | 279.4 | - | - | 1501 | - | - | - | - | - | - | - | - | - | - | - |
17514 | 94.5 | 9.6 | 818 | 17520 | roll | 1.05 | - | - | 2911 | - | 2.30 | 0.070 | 3162 | 612.6 | 279.4 | - | - | 1500 | - | - | - | - | - | - | - | - | - | - | - |
17540 | 91.9 | 9.9 | 822 | 17547 | done | 1.00 | 0.12 | 0.137 | 2888 | -191.7 | 2.28 | 0.052 | 1728 | -628.9 | 279.4 | - | - | 1500 | - | - | - | - | - | - | - | - | - | - | - |
17887 | 65.2 | 7.4 | 883 | 17893 | roll | 1.12 | 0.12 | 0.074 | 2956 | 566.7 | 2.28 | 0.067 | 331 | -612.7 | 279.4 | - | - | 1499 | - | - | - | - | - | - | - | - | - | - | - |
17906 | 63.4 | 7.8 | 886 | 17913 | done | 1.19 | - | - | 2956 | - | 2.30 | 0.054 | 1749 | 616.5 | 279.4 | - | - | 1499 | - | - | - | - | - | - | - | - | - | - | - |
18252 | 23.6 | 11.6 | 947 | 18258 | done | 1.06 | 0.17 | 0.134 | 2904 | -305.9 | - | - | 1748 | - | 279.4 | - | - | 1499 | - | - | - | - | - | - | - | - | - | - | - |
18465 | end climb: FINISH_DEPTH_REACHED | ||||||||||||||||||||||||||||
18465 | begin subsurface finish | ||||||||||||||||||||||||||||
18474 | 6.7 | -7.1 | 985 | 18510 | roll | 0.07 | 0.62 | 0.110 | 2685 | -353.2 | 2.40 | 0.084 | 3156 | 586.7 | 59.2 | -29.10 | - | 2412 | -31.4 | - | - | - | - | - | - | - | - | - | - |
18511 | end subsurface finish: CONTROL_FINISHED_OK | ||||||||||||||||||||||||||||
18511 | begin surface |