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Table B.1

Parameters of 6.7 GHz methanol maser clouds with Gaussian velocity profiles.

Cloud ΔRA ΔDec Vp Vfit FWHM Sp Sfit
(mas) (mas) (km s-1) (km s-1) (km s-1) (Jy beam-1) (Jy beam-1) (mas) (km s-1 mas-1)
(AU) (km s-1 au-1)

G20.237 + 00.065
1 –126.734 18.555 77.5 77.47 0.33 0.293 0.288 0.7(2.9) 0.46(0.103)
2 –59.880 45.139 76.3 76.34 0.31 0.487 0.498 1.0(4.4)
3 –60.398 55.921 75.8 75.83 0.51 0.295 0.272 3.1(13.6) 0.13(0.030)
4 –30.345 9.301 75.3 75.27 0.50 0.522 0.475 0.9(3.8) 0.51(0.116)
5 –28.809 10.073 74.8 74.83 0.33 0.287 0.287 2.0(8.9)
6 –66.879 96.597 73.6 73.56 0.41 0.242 0.247 2.0(9.0) 0.10(0.022)
7 –13.168 –23.973 73.3 73.27 0.42 1.292 1.251 3.3(14.6) 0.21(0.048)
8 35.952 60.392 73.2 73.22 0.39 4.078 3.356 5.9(25.8)
72.91 0.64 1.510
9 10.576 –7.160 73.2 73.20 0.27 0.755 0.755 0.8(3.3) 0.26(0.060)
10 –12.755 –21.490 72.5 72.54 0.39 0.685 0.663 0.4(1.9)
11 –7.290 –19.179 72.1 72.11 0.27 1.024 0.950 4.0(17.7) 0.07(0.017)
12 0.000 0.000 71.8 71.57 0.57 22.980 8.580 1.8(7.8) 0.58(0.133)
71.80 0.22 18.189
13 7.835 –17.220 69.0 69.02 0.24 0.456 0.466 2.7(11.8) 0.07(0.017)
14 6.614 –21.423 68.5 68.53 0.24 0.160 0.167 1.2(5.2) 0.17(0.039)
G20.239 + 00.065
1 –16.171 1.880 71.0 70.96 0.26 0.750 0.793 2.6(10.0) 0.13(0.034)
2 –21.830 –0.856 70.4 70.37 0.30 1.925 1.863 2.5(9.7)
3 132.127 –15.336 70.3 70.33 0.32 0.381 0.395 0.7(2.7) 0.43(0.109)
4 0.000 0.000 61.0 61.03 0.41 2.414 2.231 1.8(7.2)
60.54 0.51 0.514
G22.435 00.169
1 4.274 –77.749 39.9 39.86 0.06 0.310 0.584 1.2(2.7)
39.71 0.70 0.222
2 1.846 –69.665 38.6 38.56 0.22 1.034 0.981 4.9(10.7) 0.06(0.028)
3 –2.002 –63.241 38.1 38.11 0.40 0.858 0.847 1.6(3.5)
37.79 0.23 0.538
4 57.697 –14.160 33.6 33.42 0.68 0.402 0.408 1.9(4.2)
5 0.000 0.000 29.3 29.31 0.26 2.442 2.226 10.9(23.9)
29.65 0.34 2.382
6 –70.486 –173.053 28.9 28.85 0.25 1.509 1.673 2.3(5.0) 0.18(0.080)
7 –14.825 –30.702 27.0 26.71 0.38 0.425 0.266 2.5(5.5)
27.05 0.23 0.256
27.54 1.14 0.266
8 89.834 –168.271 25.6 25.57 0.20 0.784 0.737 1.7(3.6) 0.24(0.110)
9 84.015 –158.917 24.7 24.71 0.26 1.141 1.169 9.6(21.0) 0.08(0.038)
25.11 0.25 0.586
10 92.640 –129.221 23.4 23.45 0.19 0.324 0.324 1.6(3.5) 0.09(0.039)
G23.010 00.411
1 –194.798 –213.716 83.2 83.21 0.33 0.550 0.562 0.4(1.9)
2 58.664 –313.609 83.1 83.07 0.27 0.336 0.347 0.5(2.1) 0.44(0.096)
3 –191.247 –220.462 82.9 82.81 0.40 0.303 0.306 0.7(3.1) 0.44(0.096)
4 –199.511 –270.652 82.7 82.59 0.60 1.574 1.252 2.1(9.7)
5 –145.399 –311.958 82.4 82.36 0.42 21.919 21.659 3.5(16.1) 0.43(0.093)
81.66 0.38 22.422
6 –194.522 –207.374 81.6 81.98 0.22 5.371 2.081 1.8(8.0)
81.56 0.33 5.575
7 193.502 –466.083 81.4 81.35 0.23 2.845 3.078 3.2(14.6) 0.09(0.021)
8 –182.558 –249.745 81.3 81.26 0.35 9.972 9.464 2.7(12.6) 0.22(0.048)
9 –193.125 –266.819 80.7 80.71 0.28 40.806 42.257 1.2(5.6) 0.53(0.115)
10 168.821 –446.987 80.2 80.25 0.37 1.329 1.377 4.1(19.0) 0.12(0.026)
11 4.018 –415.900 79.9 79.83 0.64 0.378 0.366 5.7(26.2) 0.05(0.011)
12 –180.122 –263.407 79.5 79.53 0.35 12.367 13.438 1.7(8.0)
13 100.850 –366.987 79.3 79.30 0.34 3.695 3.662 2.0(9.0) 0.25(0.055)
14 –67.630 –365.271 79.0 78.92 0.74 0.728 0.614 17.1(78.7) 0.06(0.013)
15 –291.282 –16.504 78.8 78.78 0.32 0.642 0.663 0.5(2.3) 0.60(0.130)
16 –125.788 –12.313 78.7 78.69 0.27 0.372 0.373 0.4(1.6) 0.56(0.123)
17 219.223 –371.722 78.6 78.59 0.36 0.301 0.284 5.4(24.6) 0.07(0.016)
18 221.708 –363.425 78.4 78.44 0.20 0.246 0.282 0.6(3.0) 0.31(0.068)
19 22.345 –337.273 78.2 78.21 0.30 0.122 0.121 1.1(5.0) 0.22(0.048)
20 50.430 –81.453 76.8 76.68 0.54 4.669 4.545 3.9(18.1) 0.30(0.066)
77.28 0.51 2.369
21 46.076 –81.377 76.7 76.63 0.84 6.375 5.773 2.2(9.9)
22 31.486 –81.789 75.5 75.56 0.55 36.047 32.809 3.9(18.0)
23 34.037 –77.577 75.5 75.96 0.39 29.831 22.713 8.3(37.9) 0.21(0.045)
75.48 0.57 25.191
24 0.000 0.000 74.7 74.77 0.27 72.617 68.955 0.5(2.4) 0.96(0.210)
25 23.300 –69.860 74.7 74.78 0.26 40.359 41.013 12.7(58.5) 0.05(0.012)
26 42.041 –48.323 74.6 74.98 0.49 64.844 63.688 12.7(58.1) 0.12(0.026)
74.51 0.32 61.091
27 68.423 –33.641 74.5 74.48 0.23 9.851 9.727 1.4(6.2) 0.22(0.048)
28 202.398 114.089 74.3 74.26 0.30 38.381 39.732 3.5(16.0) 0.14(0.031)
29 76.724 –36.759 74.3 74.32 0.29 10.449 10.886 2.7(12.6)
30 100.084 –35.954 73.8 73.77 0.30 6.590 6.848 4.3(19.6) 0.13(0.028)
30 49.372 –40.654 74.1 74.14 0.24 4.296 4.497 2.7(12.6) 0.11(0.024)
31 12.488 –6.688 74.0 74.04 0.30 14.210 14.086 0.7(3.1)
32 92.294 –22.367 74.0 73.98 0.23 3.299 3.192 4.2(19.2) 0.06(0.012)
33 37.229 –38.862 73.8 73.78 0.48 8.999 9.690 2.4(11.0) 0.29(0.064)
34 21.959 –32.309 73.4 73.52 0.52 3.573 3.910 4.2(19.4) 0.17(0.036)
35 76.315 –87.397 73.3 73.36 0.54 3.357 3.203 0.9(4.0)
36 171.269 13.669 73.3 73.27 0.25 2.676 2.665 0.7(3.3)
37 –71.484 30.307 73.2 73.20 0.22 6.161 6.171 1.2(5.5) 0.28(0.061)
38 127.879 –33.335 72.7 72.66 0.26 24.507 21.717 5.3(24.2) 0.17(0.037)
72.89 0.45 8.629
39 44.291 –96.383 72.2 72.18 0.50 0.578 0.575 1.1(5.0)
G24.33 + 00.12
1 –234.435 104.783 112.9 112.90 0.21 0.365 0.365 1.0(9.9)
2 –231.190 114.450 112.9 112.90 0.21 0.442 0.442 2.7(25.7)
3 –20.363 –49.060 112.0 111.98 0.37 0.465 0.470 1.3(12.4)
4 –23.818 –59.485 111.9 111.96 0.52 0.420 0.408 0.8(7.8)
5 0.000 0.000 110.3 110.34 0.06 1.616 3.069 3.5(32.9) 0.14(0.015)
110.31 0.44 0.850
G24.494 00.038
1 0.000 0.000 115.1 115.51 0.36 2.850 2.133 3.6(21.1)
115.09 0.36 2.721
2 0.842 9.978 114.8 114.72 0.57 1.991 1.997 5.5(31.9) 0.16(0.028)
114.06 0.22 0.265
3 –7.780 20.377 113.7 113.82 0.44 0.382 0.382 1.6(9.4) 0.25(0.042)
4 226.976 184.659 113.1 113.16 0.34 0.384 0.392 1.5(8.8) 0.29(0.050)
5 –137.792 –36.379 113.2 113.21 0.29 0.374 0.352 2.0(11.9) 0.20(0.034)
6 245.766 180.996 111.5 111.51 0.32 1.682 1.676 0.5(3.1)
7 168.173 –47.488 109.4 109.45 0.38 1.567 1.449 2.5(14.5) 0.28(0.048)
8 191.525 –137.901 109.6 109.60 0.28 0.837 0.836 0.7(3.8)
G24.790 + 00.083
1 –254.737 –117.751 116.6 116.49 0.49 0.142 0.134 2.8(21.9)
2 –141.611 77.971 114.7 114.74 0.49 3.191 3.310 0.7(5.1)
3 –38.114 –28.927 114.5 114.48 0.29 0.331 0.338 1.3(10.2) 0.15(0.020)
4 –76.344 99.104 114.2 114.17 0.36 12.151 12.390 0.6(4.5) 0.92(0.120)
5 –36.854 –27.814 113.8 113.78 0.55 0.276 0.277 0.6(4.6) 0.33(0.043)
6 0.000 0.000 113.4 113.39 0.34 55.832 56.937 1.0(7.3) 0.82(0.106)
7 –1403.008 1082.429 113.0 112.97 0.18 0.585 0.562 2.6(19.9) 0.09(0.012)
8 –1389.840 1059.146 112.5 112.52 0.36 0.403 0.350 8.2(62.8) 0.05(0.006)
9 –1385.532 1035.473 112.4 112.36 0.35 5.931 6.011 2.2(16.9)
10 –1378.794 1056.553 112.3 112.31 0.40 0.482 0.483 1.7(12.7) 0.12(0.016)
11 –1154.240 998.717 112.1 112.12 0.34 2.253 2.316 2.1(16.5) 0.19(0.024)
12 –1390.563 1036.280 111.9 111.94 0.33 6.627 6.488 4.3(32.9)
13 –1386.732 1015.998 111.5 111.54 0.18 0.376 0.370 2.2(16.8) 0.09(0.012)
14 –1357.891 983.497 111.5 111.56 0.23 0.254 0.264 5.2(40.2)
15 –1323.012 695.680 110.4 110.38 0.36 10.985 11.739 2.2(17.3) 0.34(0.044)
16 –1314.433 702.126 109.5 109.53 0.24 1.767 1.736 3.1(24.1) 0.17(0.022)
17 –438.847 –403.487 108.4 108.36 0.35 0.230 0.239 3.9(30.1) 0.05(0.007)
18 –426.166 –404.449 108.3 108.31 0.38 2.431 2.431 0.6(4.9) 0.62(0.081)
19 –376.519 –400.742 108.0 108.00 0.30 4.453 4.473 15.3(117.7) 0.04(0.005)
20 –399.395 –404.246 108.1 108.15 0.28 2.173 2.369 1.6(12.2) 0.19(0.025)
21 –408.564 –407.577 107.9 107.96 0.26 5.130 5.275 1.2(9.3) 0.28(0.036)
22 –432.878 –405.869 107.8 107.77 0.27 8.003 8.592 2.3(17.6) 0.10(0.014)
23 –442.739 –405.074 107.7 107.64 0.40 12.215 12.998 4.5(34.5) 0.16(0.020)
24 –1447.730 554.386 106.5 106.53 0.23 0.394 0.382 1.8(14.1) 0.16(0.021)
G24.850 + 00.087
1 –109.496 –35.007 114.9 114.89 0.42 2.413 2.372 2.7(21.3)
2 –109.305 –47.761 114.9 114.93 0.35 0.547 0.562 0.2(1.4)
3 –106.147 –28.145 114.6 114.56 0.32 3.144 3.277 1.8(14.2)
4 –42.638 –28.227 113.7 113.62 1.00 0.422 0.408 6.6(52.9)
5 –49.674 –15.365 112.3 112.31 0.35 0.531 0.534 1.5(11.6)
6 –50.345 –14.013 110.9 110.90 0.33 0.273 0.273 2.0(15.8)
7 0.000 0.000 110.2 110.22 0.71 5.955 6.054 4.1(33.0) 0.35(0.044)
109.67 0.42 3.247
8 –49.529 36.453 108.0 108.06 0.25 1.207 1.292 0.9(7.3)
9 –24.542 33.906 107.8 107.67 0.90 0.249 0.231 1.5(12.0) 0.16(0.020)
10 –36.860 29.541 107.9 107.87 0.15 0.480 0.493 0.6(4.8) 0.23(0.029)
G28.011 00.426
1 92.574 3.003 28.0 28.02 0.46 0.413 0.411 2.6(2.9)
2 86.825 0.042 25.4 25.39 0.18 0.281 0.247 6.7(7.4) 0.06(0.054)
3 102.492 –8.423 24.7 24.67 0.24 0.479 0.436 1.8(1.9)
4 291.51 –13.000 23.5 23.51 0.31 0.652 0.681 0.9(1.0)
5 61.879 59.222 17.8 17.84 0.36 0.193 0.179 1.4(1.5)
6 –13.026 –17.706 17.0 16.98 0.41 1.192 1.216 4.9(5.4)
7 0.000 –0.000 16.1 16.14 0.42 1.262 1.208 7.9(8.7) 0.11(0.104)
G29.978 00.048
1 –4.834 –0.926 104.2 104.17 0.34 6.845 5.133 3.3(29.2) 0.46(0.053)
104.58 0.80 3.447
2 0.000 0.000 103.5 103.49 0.52 31.162 30.431 3.5(30.4)
102.92 0.43 21.829
3 90.625 –42.016 102.5 102.48 0.33 6.235 6.322 6.0(52.7) 0.19(0.022)
101.79 1.198
4 34.319 74.130 100.9 100.90 0.41 0.858 0.825 0.4(3.5)
5 –8.366 55.249 100.9 100.90 0.22 0.285 0.285 0.5(4.3) 0.41(0.046)
6 16.719 54.398 99.9 99.89 0.53 0.296 0.264 0.7(6.0) 0.50(0.056)
7 45.163 75.117 99.8 99.80 0.32 1.253 1.189 2.2(19.6)
100.26 0.35 0.493
8 38.405 72.979 99.4 99.39 0.28 0.188 0.189 0.8(7.4) 0.24(0.027)
9 20.622 57.507 99.3 99.30 0.46 0.460 0.455 1.4(12.2) 0.29(0.033)
10 –39.646 93.832 98.4 98.36 0.24 10.922 6.650 6.4(56.3) 0.22(0.025)
98.46 0.62 4.320
99.24 0.35 0.620
11 –18.450 99.110 98.3 98.30 0.26 1.242 1.242 0.2(2.2) 0.81(0.093)
12 18.050 54.211 98.0 98.05 0.40 1.110 1.139 0.8(6.9)
13 36.858 75.497 98.0 97.94 0.27 2.256 2.398 0.3(2.5) 1.06(0.120)
14 50.310 84.710 97.6 97.60 0.34 2.957 2.918 0.5(4.6) 0.95(0.108)
15 58.784 72.340 97.3 97.27 0.30 6.905 6.595 3.1(27.4) 0.21(0.023)
97.52 1.655
16 40.918 76.075 97.0 96.96 0.20 13.643 12.418 2.3(20.5) 0.45(0.051)
97.39 1.399
G30.198 00.169
1 2.829 10.127 110.4 110.35 0.44 5.812 5.559 0.3(1.8) 2.56(0.434)
2 4.614 –6.567 110.3 110.77 0.25 2.189 0.926 3.5(20.6) 0.37(0.063)
110.24 0.58 2.241
3 1.343 5.443 109.7 109.72 0.34 1.287 1.344 2.9(16.8) 0.12(0.020)
4 1.063 –1.381 109.1 109.10 0.53 5.271 5.176 4.4(26.0) 0.14(0.023)
5 0.000 0.000 108.2 108.07 0.40 14.690 9.977 4.0(23.5) 0.35(0.060)
108.53 0.71 11.575
6 –90.183 –41.008 105.4 105.40 0.32 0.710 0.713 8.9(52.4) 0.05(0.008)
7 –166.889 –62.443 105.2 105.17 0.22 1.015 1.073 1.8(10.7) 0.22(0.037)
8 –87.819 –55.249 104.9 104.96 0.31 1.028 0.988 0.8(4.5) 0.65(0.111)
9 5.698 –146.731 104.8 104.73 0.33 0.830 0.902 0.5(2.8) 1.13(0.192)
10 –95.825 –56.526 104.5 104.49 0.20 0.442 0.446 0.6(3.4) 0.35(0.059)
11 –175.386 –23.978 104.4 104.45 0.45 0.264 0.262 2.9(17.4) 0.10(0.017)
12 –114.333 –71.815 103.4 103.38 0.23 1.387 1.262 7.9(46.7)
103.04 0.41 0.752
13 –107.274 –87.316 100.8 100.83 0.28 0.689 0.728 0.7(4.4) 0.54(0.091)
G30.224 00.180
1 0.000 0.000 113.4 113.39 0.28 2.557 1.595 3.8(24.9) 0.34(0.052)
112.99 0.88 1.712
2 –19.347 14.031 112.5 112.46 0.39 0.493 0.505 1.2(8.0)
3 7.905 13.522 112.2 112.15 0.24 0.411 0.460 0.6(3.9) 0.33(0.051)
4 9.897 9.227 111.4 111.43 0.54 0.316 0.308 1.4(9.0) 0.29(0.044)
5 5.545 2.937 111.3 111.32 0.27 1.101 1.102 0.8(5.0)
6 18.440 0.031 111.1 111.09 0.36 0.223 0.223 0.4(2.7) 0.48(0.073)
G32.744 00.076
1 –285.122 1075.249 39.1 39.16 0.25 4.192 4.211 0.9(10.5) 0.45(0.038)
2 –205.913 1064.347 38.3 37.97 0.27 8.882 7.659 9.6(113.8) 0.12(0.011)
38.24 0.23 6.681
38.57 0.49 7.878
3 –225.144 1068.596 38.4 38.46 0.20 5.298 5.112 0.3(3.0) 0.95(0.080)
4 –131.195 1053.808 37.8 38.18 0.88 0.512 0.870 0.2(2.3) 0.68(0.057)
5 –140.279 1057.763 37.6 37.61 0.21 1.092 1.086 4.0(47.0) 0.11(0.009)
6 –133.037 1057.820 36.3 36.29 0.16 0.422 0.430 0.5(6.5)
7 –0.639 –0.582 34.4 34.44 0.29 0.183 0.193 0.4(4.9) 0.48(0.041)
8 –137.005 72.654 34.1 34.12 0.42 0.668 0.595 2.9(34.4) 0.17(0.015)
9 0.000 0.000 33.4 33.45 0.41 10.535 10.240 1.9(22.2) 0.42(0.036)
10 –26.065 –20.175 32.1 32.10 0.31 6.395 6.699 1.3(14.9) 0.42(0.036)
11 –15.255 –16.117 31.7 31.73 0.28 1.082 1.086 1.1(13.1) 0.27(0.023)
12 –41.825 245.805 30.7 30.69 0.32 0.878 0.868 0.1(1.0)
13 –120.351 93.973 30.2 30.17 0.40 3.556 3.654 0.5(6.3) 1.19(0.101)
14 –115.868 91.832 29.3 29.26 0.43 0.468 0.453 2.7(31.6) 0.26(0.022)
29.63 0.29 0.247
G34.245 + 00.134
1 46.804 –0.858 62.6 62.57 0.30 0.193 0.177 0.6(2.0)
2 42.323 –0.566 62.0 62.11 0.43 0.084 0.090 0.8(2.5) 0.52(0.158)
3 58.040 –9.770 61.9 61.91 0.21 0.101 0.102 0.9(2.9) 0.23(0.068)
4 25.169 31.365 61.5 61.74 0.18 0.102 0.031 4.8(15.8) 0.10(0.032)
61.51 0.39 0.097
5 36.771 4.503 61.2 61.13 0.27 1.393 1.125 2.1(7.0)
61.35 0.44 0.687
6 9.798 41.269 60.3 60.23 0.83 0.504 0.127 12.0(39.4) 0.08(0.025)
60.31 0.16 0.425
7 19.577 12.389 59.5 59.52 0.27 0.128 0.134 0.9(2.8)
8 2.494 3.544 58.6 58.57 0.25 0.340 0.350 3.0(9.9) 0.10(0.030)
9 –63.596 70.975 57.0 57.05 0.21 0.628 0.703 0.5(1.7) 0.59(0.180)
10 –36.674 6.257 56.9 56.92 0.32 0.712 0.766 1.5(5.0) 0.36(0.109)
11 0.000 0.000 55.0 55.35 0.35 1.440 1.164 7.4(24.4) 0.17(0.051)
54.97 0.37 1.268
G34.258 + 00.153
1 –11.380 –24.303 58.1 58.05 0.34 0.365 0.387 6.5(22.1) 0.03(0.009)
2 8.011 20.121 58.0 57.96 0.24 3.797 3.841 4.2(14.4) 0.10(0.031)
3 0.000 0.000 57.6 57.61 0.24 5.862 5.991 8.6(29.2) 0.06(0.017)
4 147.389 –24.092 56.7 56.72 0.21 0.232 0.237 3.5(11.9) 0.11(0.034)
G34.396 + 00.222
1 –52.259 21.820 62.1 62.27 1.01 0.486 0.474 16.6(54.8)
2 –35.981 –117.128 60.6 60.58 0.54 0.199 0.181 1.3(4.4) 0.40(0.122)
3 –23.973 –127.623 60.4 60.43 0.35 0.147 0.137 0.4(1.4)
4 –29.204 –104.930 60.4 60.54 0.65 0.234 0.214 2.9(9.5) 0.24(0.074)
5 –20.989 32.721 60.1 59.96 0.60 0.358 0.354 1.8(5.8) 0.34(0.104)
6 –16.871 42.875 59.8 59.76 0.22 0.375 0.337 4.5(14.9) 0.13(0.040)
60.06 0.34 0.378
7 0.000 0.000 55.6 55.68 0.41 5.227 5.115 12.9(42.7) 0.06(0.019)
G35.025 + 00.350
1 –76.439 69.014 46.3 46.60 0.42 0.291 0.161 3.3(7.6) 0.34(0.145)
46.35 0.18 0.221
45.92 0.45 0.245
2 –71.930 76.612 46.2 46.26 0.32 0.272 0.269 0.7(1.7) 0.42(0.179)
3 33.848 –138.399 45.9 45.86 0.41 1.058 1.074 4.8(11.1) 0.19(0.081)
45.42 0.28 0.760
4 –68.945 72.754 45.0 45.08 0.50 0.189 0.177 0.7(1.7)
5 19.442 –120.938 44.5 44.49 0.21 3.143 3.090 4.8(11.1) 0.08(0.036)
6 0.000 0.000 43.9 43.92 0.41 5.296 5.377 0.5(1.2) 1.23(0.529)
7 –17.610 –76.766 43.4 43.41 0.17 0.522 0.544 5.3(12.3) 0.06(0.024)
8 –18.277 –47.123 42.2 42.18 0.23 0.937 0.957 1.4(3.3) 0.14(0.060)
9 –16.817 3.389 41.5 41.51 0.33 0.413 0.408 2.0(4.7)

Notes. The coordinates are relative to the brightest spot of each source listed in Table 2.

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