How to smooth data

I have a list of the form dataTosmooth={{a,b,c},….} where a and b are coordinates and c is the data to be smoothed. In other words, smooth dataTosmooth[[All,3]] along dataTosmooth[[All,{1,2}]]. What I want is a GaussianFilter[] that can specify the spread of the smoothing in each coordinate direction (i believe this is the standard deviation of the smoothing kernel?).

My data is below:

dataTosmooth = {{-50.85000000000002`, 10.270358052733272`,  35.71056426325409`}, {-41.10000000000002`, 2.873303230466569`,  38.81568368585049`}, {-50.85000000000002`, 26.632846724285706`,  32.673746341673144`}, {-41.10000000000002`, 19.236823144577595`,  62.82335234608225`}, {-31.340000000000032`, 11.842619292783251`,  68.53798691236852`}, {-21.590000000000032`, 4.449371441148591`,  59.67967828331516`}, {-50.85000000000002`, 42.998118304091385`,  24.63168690934504`}, {-41.10000000000002`, 35.60127021988911`,  39.14245981028786`}, {-31.340000000000032`, 28.205878010311572`,  108.66125712506734`}, {-21.590000000000032`, 20.813838889904257`,  71.86692911207489`}, {-11.830000000000041`, 13.420766840507909`,  56.90601725652569`}, {-2.07000000000005`, 6.025392936376173`,  45.86143750472721`}, {-50.85000000000002`, 59.3621659426611`,  15.762228586085156`}, {-41.10000000000002`, 51.96435329871178`,  21.391649726002893`}, {-31.340000000000032`, 44.57034147474533`,  93.0932476069022`}, {-21.590000000000032`, 37.178070307403786`,  103.45958341304103`}, {-11.830000000000041`, 29.784020977809462`,  71.78875677987466`}, {-2.07000000000005`, 22.389236995571`,  56.71646586309835`}, {7.67999999999995`, 14.992388529677152`,  47.14707785218505`}, {17.440000000000055`, 7.597788181370409`,  46.556240183245045`}, {-50.85000000000002`, 75.72467877215065`,  17.284429409153184`}, {-41.10000000000002`, 68.32743607405777`,  41.167517535066395`}, {-31.340000000000032`, 60.932774236589516`,  97.62585210895732`}, {-21.590000000000032`, 53.54074691792057`,  100.79005357672948`}, {-11.830000000000041`, 46.14684985504994`,  87.71485621033645`}, {-2.07000000000005`, 38.751590761310176`,  61.202148655092174`}, {7.67999999999995`, 31.355932184885482`,  53.28526015700777`}, {17.440000000000055`, 23.960184532899337`,  51.37840013079427`}, {-41.10000000000002`, 84.69127060783131`,  48.50554092059999`}, {-31.340000000000032`, 77.29765442653235`,  96.52191875423944`}, {-21.590000000000032`, 69.90470174293358`,  102.16980131134638`}, {-11.830000000000041`, 62.51153713633315`,  87.28252975252263`}, {-2.07000000000005`, 55.1171707113319`,  71.13287039055854`}, {7.67999999999995`, 47.719660637139974`,  56.039176921150435`}, {17.440000000000055`, 40.32255868764509`,  51.62321764477686`}, {-21.590000000000032`, 86.26760264399773`,  99.89893442875152`}, {-11.830000000000041`, 78.87493853044776`,  84.38244870824737`}, {-2.07000000000005`, 71.47982757170443`,  66.47546126203261`}, {7.67999999999995`, 64.08276415269069`,  56.678848788591324`}, {17.440000000000055`, 56.68762104179337`,  49.11240169244424`}, {-2.07000000000005`, 87.84359593999416`,  60.45632142299099`}, {7.67999999999995`, 80.44678282702743`,  46.25808469878537`}, {17.440000000000055`, 73.05145942047734`,  43.000967430977646`}, {17.440000000000055`, 89.41549423365234`,  35.91954899494147`}, {-50.85000000000002`, 92.08824379203644`,  8.605283260881098`}, {-50.85000000000002`, 108.45069667426264`,  11.52966608362967`}, {-41.10000000000002`, 101.05393883219705`,  44.11489034328432`}, {-31.340000000000032`, 93.66005797761179`,  73.27571323433162`}, {-50.85000000000002`, 124.81532739053824`,  13.822080107567034`}, {-41.10000000000002`, 117.41888025571974`,  36.794739433783214`}, {-31.340000000000032`, 110.0246073374448`,  71.61101451592485`}, {-21.590000000000032`, 102.6314654421303`,  78.16186826068069`}, {-11.830000000000041`, 95.23887349513711`,  74.51831620480968`}, {-50.85000000000002`, 141.18006853527996`,  13.310659262410699`}, {-41.10000000000002`, 133.78046387959196`,  57.95955788306187`}, {-31.340000000000032`, 126.38715905181873`,  67.83749405749008`}, {-21.590000000000032`, 118.99470606408583`,  60.94596541199428`}, {-11.830000000000041`, 111.60257187866787`,  61.15398760506133`}, {-2.07000000000005`, 104.20728733201076`,  48.67468541244001`}, {7.67999999999995`, 96.81027117502538`,  45.52254935743384`}, {-50.85000000000002`, 157.54204574955395`,  32.85902615720679`}, {-41.10000000000002`, 150.14434755173272`,  58.74089291115688`}, {-31.340000000000032`, 142.75176035586526`,  40.68660344634335`}, {-21.590000000000032`, 135.35972757157379`,  43.96553536578396`}, {-11.830000000000041`, 127.96571938604754`,  47.731975131980526`}, {-2.07000000000005`, 120.57125958422365`,  46.88224024084176`}, {7.67999999999995`, 113.17334849523019`,  33.146201139798805`}, {17.440000000000055`, 105.778455903297`,  28.744622975436638`}, {-50.85000000000002`, 173.90647150665006`,  13.951939506749587`}, {-41.10000000000002`, 166.50903777139433`,  39.42513474929413`}, {-31.340000000000032`, 159.11491853678754`,  36.678015213476314`}, {-21.590000000000032`, 151.72299087080495`,  29.002943816102533`}, {-11.830000000000041`, 144.33048474012006`,  45.740992555912044`}, {-2.07000000000005`, 136.93710041334336`,  27.876090113213525`}, {7.67999999999995`, 129.53618856327074`,  37.304938681091556`}, {17.440000000000055`, 122.14189062612374`,  22.23726489476616`}, {-31.340000000000032`, 175.47796435907952`,  52.748557326243535`}, {-21.590000000000032`, 168.08570710991364`,  64.81976781815867`}, {-11.830000000000041`, 160.6931957243165`,  44.599820627441986`}, {-2.07000000000005`, 153.2983792825559`,  37.64146649640527`}, {7.67999999999995`, 145.9001470791707`,  22.779087997547222`}, {17.440000000000055`, 138.504480760232`,  18.657687959658883`}, {-11.830000000000041`, 177.05682588856274`,  41.93606204688277`}, {-2.07000000000005`, 169.66138640423281`,  45.416159018569594`}, {7.67999999999995`, 162.26467463897`,  32.96873518957013`}, {17.440000000000055`, 154.8692135101764`,  22.87621472184591`}, {7.67999999999995`, 178.62832066247012`,  32.728904656282026`}, {17.440000000000055`, 171.23374350652944`,  25.148891476564128`}, {-50.85000000000002`, 239.3621659426611`,  12.480879376069625`}, {-41.10000000000002`, 231.96435329871179`,  8.025642964896925`}, {-31.340000000000032`, 224.57034147474533`,  33.438439706421754`}, {-21.590000000000032`, 217.1780703074038`,  105.20882021009456`}, {-11.830000000000041`, 209.78402097780946`,  46.7701363051253`}, {-2.07000000000005`, 202.389236995571`,  48.438182769381434`}, {7.67999999999995`, 194.99238852967716`,  36.58827851238699`}, {17.440000000000055`, 187.59778818137042`,  29.716782076799635`}, {-50.85000000000002`, 255.72503363985203`,  6.583537460970347`}, {-41.10000000000002`, 248.32777634141468`,  11.033084337573124`}, {-31.340000000000032`, 240.93309418426773`,  16.048551336491414`}, {-21.590000000000032`, 233.54104127754883`,  73.47984281420318`}, {-11.830000000000041`, 226.1493860608138`,  56.288509484618636`}, {-2.07000000000005`, 218.75216187654576`,  38.96555155518782`}, {7.67999999999995`, 211.35655756554726`,  34.24591847943343`}, {17.440000000000055`, 203.96085357284127`,  29.93264438702334`}, {-41.10000000000002`, 264.6912706078313`,  8.917437300031883`}, {-31.340000000000032`, 257.29765442653235`,  22.77318159590351`}, {-21.590000000000032`, 249.90470174293358`,  94.24297188650199`}, {-11.830000000000041`, 242.51186189307893`,  66.90333885539648`}, {-2.07000000000005`, 235.1171707113319`,  32.60697773483461`}, {7.67999999999995`, 227.71966063713998`,  27.04036061150073`}, {17.440000000000055`, 220.32255868764508`,  27.352197516835826`}, {-21.590000000000032`, 266.2683330630546`,  87.00032327526148`}, {-11.830000000000041`, 258.87565693618865`,  93.94211834954542`}, {-2.07000000000005`, 251.48052198668333`,  24.320164473128056`}, {7.67999999999995`, 244.08342282394418`,  22.173894786437497`}, {17.440000000000055`, 236.6882328805953`,  25.82559735998376`}, {-2.07000000000005`, 267.843998447932`,  24.36438969069408`}, {7.67999999999995`, 260.44714390335577`,  24.329576907541977`}, {17.440000000000055`, 253.05180958679978`,  21.350541234357504`}, {17.440000000000055`, 269.41549423365234`,  22.553025074255565`}, {-50.85000000000002`, 190.26963741670468`,  12.249710853730392`}, {-41.10000000000002`, 182.8723158359478`,  19.09584681285435`}, {-50.85000000000002`, 206.6328467242857`,  18.15002617078005`}, {-41.10000000000002`, 199.23682314457758`,  22.89167058123981`}, {-31.340000000000032`, 191.84261929278324`,  41.178883544846144`}, {-21.590000000000032`, 184.4493714411486`,  95.6362818181468`}, {-50.85000000000002`, 222.99811830409138`,  7.866947311378158`}, {-41.10000000000002`, 215.6012702198891`,  8.608068017853943`}, {-31.340000000000032`, 208.20587801031158`,  54.017223179278695`}, {-21.590000000000032`, 200.81383888990425`,  84.16516084461551`}, {-11.830000000000041`, 193.4207668405079`,  47.98167202172095`}, {-2.07000000000005`, 186.02539293637616`,  46.21709910844685`}, {-50.85000000000002`, 272.0884633470491`,  4.787857140725892`}, {-50.85000000000002`, 288.4525503585659`,  10.812641790977825`}, {-41.10000000000002`, 281.0550168884835`,  7.30768355910409`}, {-31.340000000000032`, 273.6608250905488`,  40.51857351881985`}, {-50.85000000000002`, 304.81562802291336`,  17.58421826525137`}, {-41.10000000000002`, 297.4192052801607`,  12.388432104184938`}, {-31.340000000000032`, 290.02495126176467`,  36.474884509755384`}, {-21.590000000000032`, 282.6318225761067`,  68.86386570618869`}, {-11.830000000000041`, 275.2392380406287`,  93.5971826499067`}, {-50.85000000000002`, 321.18006853527993`,  8.22371841079204`}, {-41.10000000000002`, 313.78046387959193`,  10.071113270140483`}, {-31.340000000000032`, 306.38715905181874`,  16.99704533146858`}, {-21.590000000000032`, 298.99470606408585`,  67.83629559461517`}, {-11.830000000000041`, 291.60257187866785`,  125.48029964898875`}, {-2.07000000000005`, 284.20728733201076`,  35.34755260976352`}, {7.67999999999995`, 276.8102711750254`,  23.263237844289865`}, {-50.85000000000002`, 337.5423841647362`,  11.36600510293745`}, {-41.10000000000002`, 330.146487811147`,  18.917134746044393`}, {-31.340000000000032`, 322.75205173260684`,  41.586135910901795`}, {-21.590000000000032`, 315.3597275715738`,  92.72125969808648`}, {-11.830000000000041`, 307.9662966033093`,  163.53064896220525`}, {-2.07000000000005`, 300.57157486151215`,  40.001162639353375`}, {7.67999999999995`, 293.1740217393397`,  21.27936243170834`}, {17.440000000000055`, 285.77880817562993`,  20.515038910516356`}, {-50.85000000000002`, 353.90647150665006`,  18.3776858173166`}, {-41.10000000000002`, 346.50903777139433`,  27.376215041528297`}, {-31.340000000000032`, 339.1149185367875`,  30.257997289972742`}, {-21.590000000000032`, 331.72299087080495`,  99.86756530525814`}, {-11.830000000000041`, 324.3304847401201`,  91.83169605316021`}, {-2.07000000000005`, 316.9371004133434`,  18.836631864534585`}, {7.67999999999995`, 309.53618856327074`,  19.95064660606268`}, {17.440000000000055`, 302.14189062612377`,  16.002839201216762`}, {-31.340000000000032`, 355.4790590727488`,  52.64555536795103`}, {-21.590000000000032`, 348.08678141464077`,  67.83523568176052`}, {-11.830000000000041`, 340.69388671032993`,  38.75331985778767`}, {-2.07000000000005`, 333.299033512983`,  26.485557385110862`}, {7.67999999999995`, 325.90075350369267`,  22.29703567741686`}, {17.440000000000055`, 318.50690611599794`,  21.108851224071856`}, {-11.830000000000041`, 357.05682588856274`,  46.125344443158355`}, {-2.07000000000005`, 349.6613864042328`,  37.48141472783543`}, {7.67999999999995`, 342.26467463897`,  31.004461775686405`}, {17.440000000000055`, 334.8692135101764`,  26.973876250920995`}, {7.67999999999995`, 358.6283206624701`,  42.92870834301914`}, {17.440000000000055`, 351.23374350652944`,  40.47545552554042`}}; 

The noisy data looks like this:

enter image description here

The result I want looks somewhat like below.

enter image description here

This was generated using the squared exponential kernel in Predict[] as

sqExp = Predict[    Thread[dataTosmooth[[All, {1, 2}]] -> dataTosmooth[[All, 3]]] ,     Method -> {"GaussianProcess",       "CovarianceType" -> "SquaredExponential"}]; ContourPlot[  sqExp[{x, y}], {x, -50, 17.5}, {y, 2.84, 358}, PlotRange -> Full,   PlotLegends ->    Placed[BarLegend[Automatic, LegendMargins -> {{0, 0}, {10, 5}},      LegendLabel -> "contours",      LabelStyle -> {25, Italic, FontFamily -> "Times New Roman"}],     Below], Frame -> True,   FrameLabel -> {Style["x direction", 20, Italic],     Style["y direction, [\[Theta]]", 20, Italic]},   LabelStyle -> {20, GrayLevel[0], FontFamily -> "Times New Roman"},   LabelStyle -> {20, GrayLevel[0], FontFamily -> "Times New Roman"},   ImageSize -> Large, GridLines -> Automatic  ]