File name: Pandora65s1_Altzomoni_20210831_L2Fit_fout2c5d20210115p1-8.txt File generation date: 20260113T090424.7Z Data description: Level 2 spectral fitting results file Data file version: fout2c5p1-8 Local principal investigator: Michel Grutter Network principal investigator: Alexander Cede Instrument type: Pandora Instrument number: 65 Spectrometer number: 1 Processing software version used: BlickP v1.8.75 Instrument operation file used: Pandora65_OF_v4d20201007.txt Instrument calibration file used: Pandora65s1_CF_v5d20210115.txt Level 1 file used: Pandora65s1_Altzomoni_20210831_L1_smca1c5d20210115p1-8.txt Full location name: Observatorio Atmosferico Altzomoni, UNAM Short location name: Altzomoni Country of location: Mexico Location latitude [deg]: 19.1187 Location longitude [deg]: -98.6552 Location altitude [m]: 3985 Local noon date: 20210831 Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are dark map for dark correction (replaced by immediate dark method), latency correction, matrix method stray light correction (replaced by simple method) Data caveats: None First and last pixel inside fitting window: 277 418 Nominal wavelengths inside fitting window [nm]: 305.1298 305.2707 305.4115 305.5524 305.6932 305.8340 305.9748 306.1156 306.2564 306.3971 306.5379 306.6786 306.8193 306.9600 307.1007 307.2414 307.3821 307.5227 307.6634 307.8040 307.9446 308.0852 308.2258 308.3664 308.5069 308.6475 308.7880 308.9286 309.0691 309.2096 309.3501 309.4905 309.6310 309.7714 309.9119 310.0523 310.1927 310.3331 310.4735 310.6139 310.7542 310.8946 311.0349 311.1752 311.3155 311.4558 311.5961 311.7363 311.8766 312.0168 312.1570 312.2973 312.4375 312.5776 312.7178 312.8580 312.9981 313.1383 313.2784 313.4185 313.5586 313.6987 313.8387 313.9788 314.1188 314.2588 314.3989 314.5389 314.6788 314.8188 314.9588 315.0987 315.2387 315.3786 315.5185 315.6584 315.7983 315.9381 316.0780 316.2178 316.3577 316.4975 316.6373 316.7771 316.9168 317.0566 317.1963 317.3361 317.4758 317.6155 317.7552 317.8949 318.0346 318.1742 318.3138 318.4535 318.5931 318.7327 318.8723 319.0119 319.1514 319.2910 319.4305 319.5700 319.7095 319.8490 319.9885 320.1280 320.2674 320.4069 320.5463 320.6857 320.8251 320.9645 321.1039 321.2432 321.3826 321.5219 321.6613 321.8006 321.9399 322.0791 322.2184 322.3577 322.4969 322.6361 322.7754 322.9146 323.0538 323.1929 323.3321 323.4712 323.6104 323.7495 323.8886 324.0277 324.1668 324.3059 324.4449 324.5840 324.7230 324.8620 --------------------------------------------------------------------------------------- Column 1: Two letter code of measurement routine Column 2: UT date and time for center-time of measurement, yyyymmddThhmmssZ (ISO 8601) Column 3: Fractional days since 1-Jan-2000 midnight for center-time of measurement Column 4: Routine count (1 for the first routine of the day, 2 for the second, etc.) Column 5: Repetition count (1 for the first set in the routine, 2 for the second, etc.) Column 6: Total duration of measurement set in seconds Column 7: Data processing type index Column 8: Solar zenith angle for center-time of measurement in degree Column 9: Solar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 10: Lunar zenith angle for center-time of measurement in degree Column 11: Lunar azimuth for center-time of measurement in degree, 0=north, increases clockwise Column 12: Pointing zenith angle in degree, absolute or relative (see next column), 999=tracker not used Column 13: Zenith pointing mode: zenith angle is... 0=absolute, 1=relative to sun, 2=relative to moon Column 14: Pointing azimuth in degree, increases clockwise, absolute (0=north) or relative (see next column), 999=tracker not used Column 15: Azimuth pointing mode: like zenith angle mode but also fixed scattering angles relative to sun (3) or moon (4) Column 16: Fitting result index: 0=no error or warning, 1, 2=warning, >2=error Column 17: Number of function evaluations used, 0=linear fitting or fitting not successful or no fitting done Column 18: rms of unweighted fitting residuals, -9=fitting not successful Column 19: Normalized rms of fitting residuals weighted with independent uncertainty, -9=fitting not successful or no uncertainty used Column 20: Expected rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 21: Expected normalized weighted rms based on independent uncertainty, -9=fitting not successful or no uncertainty given Column 22: Ozone slant column amount [moles per square meter], -9e99=fitting not successful Column 23: Independent uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 24: Structured uncertainty of ozone slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 25: Common uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 26: rms-based uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 27: Ozone effective temperature [K] Column 28: Independent uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 29: Structured uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 30: Common uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 31: Effective ozone fitting wavelength [nm], -9=fitting not successful Column 32: Diffuse correction applied before fitting at effective fitting wavelength for ozone [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 33: Sulfur dioxide slant column amount [moles per square meter], -9e99=fitting not successful Column 34: Independent uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 35: Structured uncertainty of sulfur dioxide slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 36: Common uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful Column 37: rms-based uncertainty of sulfur dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful Column 38: Sulfur dioxide effective temperature [K] Column 39: Independent uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful Column 40: Structured uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful Column 41: Common uncertainty of sulfur dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful Column 42: Effective sulfur dioxide fitting wavelength [nm], -9=fitting not successful Column 43: Diffuse correction applied before fitting at effective fitting wavelength for sulfur dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction Column 44: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting Column 45: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting Column 46: Lower limit used for wavelength scaling [nm] Column 47: Upper limit used for wavelength scaling [nm] Column 48: Order of smoothing polynomial Column 49: Smoothing polynomial coefficient, order 0 Column 50: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 51: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 52: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 53: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful Column 54: Smoothing polynomial coefficient, order 1 Column 55: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 56: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 57: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 58: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful Column 59: Smoothing polynomial coefficient, order 2 Column 60: Independent uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 61: Structured uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 62: Common uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 63: rms-based uncertainty of smoothing polynomial coefficient, order 2, -9=fitting not successful Column 64: Smoothing polynomial coefficient, order 3 Column 65: Independent uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 66: Structured uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 67: Common uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 68: rms-based uncertainty of smoothing polynomial coefficient, order 3, -9=fitting not successful Column 69: Mean value of measured data inside fitting window [same units as measurements] Column 70: Wavelength change polynomial coefficient, order 0 Column 71: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 72: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 73: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 74: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful Column 75: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination Column 76: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination Column 77: L2Fit data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 78: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ1 limit, 0=L1 data quality above 0, 1=Spectral fitting was not successful, 2=Wavelength shift too large, 3=Normalized rms of fitting residuals weighted with independent uncertainty too large Column 79: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 80: L1 data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality Column 81: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ1 limit, 0=Saturated data, 1=Too few dark counts measurements, 2=No temperature given or effective temperature too different from the reference temperature, 3=Dark count too high, 4=Unsuccessful dark background fitting, 5=The dark count differs significantly from the dark map for too many pixels, 6=Absolute value of estimated average residual stray light level too high, 7=Although attempted, no wavelength change could be retrieved, 8=Absolute value of retrieved wavelength shift too large, 9=Retrieved wavelength shift differs too much from the shift predicted by the effective temperature Column 82: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ2 limit (same parameters as for DQ1) Column 83: Atmospheric variability [%], 999=no atmospheric variability was determined Column 84: Wavelength effective temperature [°C], 999=no effective temperature given Column 85: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher) Column 86: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination Column 87: Retrieved total wavelength shift [nm], -9=no wavelength change fitting Column 88: Number of bright count cycles Column 89: Number of dark count cycles Column 90: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions Column 91: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions Column 92: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal Column 93: Integration time [ms] Column 94: Temperature at electronics board [°C], 999=no temperature signal Column 95: Spectrometer control temperature [°C], 999=no temperature signal Column 96: Auxiliary spectrometer temperature [°C], 999=no temperature signal Column 97: Temperature in head sensor [°C], 999=no temperature signal Column 98: Humidity in head sensor [%], -9=no humidity signal Column 99: Pressure in head sensor [hPa], -9=no pressure signal Columns 100-241: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting Columns 242-383: Normalized slant column residuals weighted with independent instrumental uncertainty for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting, 0=no independent instrumental uncertainty was given --------------------------------------------------------------------------------------- SS 20210831T135537.6Z 7913.580296 268 1 34.01 2 68.25 88.36 9.91 305.73 0.00 1 0.00 1 0 17 6.456e-02 1.011e-02 1.589e-02 3.379e-03 3.086080e-01 1.730674e-03 3.321624e-03 -6.000000e+00 3.762967e-02 225.51 -2.00 3.11 -2.00 318.06 0.00e+00 2.508619e-03 2.806024e-04 7.625105e-05 -6.000000e+00 1.514698e-03 272.98 -2.00 20.00 -2.00 317.77 0.00e+00 2.677 0.000 302.00 328.00 3 5.6520e+00 4.5902e-03 2.1836e-02 -6.0000e+00 9.3704e-02 4.5697e-02 5.1514e-03 1.3945e-02 -6.0000e+00 1.0194e-01 -4.3303e-03 3.4055e-03 7.0372e-03 -6.0000e+00 6.0010e-02 -2.4484e-04 1.7765e-03 2.0719e-03 -6.0000e+00 2.5423e-02 2.2535e-04 -6.7521e-04 1.0306e-04 2.5108e-05 -6.0000e+00 1.8586e-03 1.0289e-02 0.0000e+00 12 9 9 12 9 1 99.95 21.56 0.23 0.01029 0.00522 12 5 1 5 0 2602.070 25.39 19.97 21.56 14.36 7.2 658.51 -3807 -5948 2029 -5541 6628 -10547 -2694 -866 -5397 -565 -4083 4201 -4695 438 -1460 3410 -1086 -1852 2142 3045 -1919 2162 341 -1336 1467 -184 1473 -121 1737 -526 2626 -15061 145 70389 -1706 -866 -1298 -1184 -880 124 -1173 52 -1369 546 -155 -92 302 -529 -573 160 1023 179 2099 -305 243 327 1755 323 112 1103 907 1404 187 760 -241 311 -2095 -507 -44 -6 744 207 523 -254 40 -541 -297 -1844 -354 -1056 -546 -2018 -740 -443 -596 -788 186 759 267 799 -231 590 140 937 110 424 1247 479 424 9 -246 -917 120 -1064 111 -1065 -118 -444 330 132 218 134 -350 -20 -447 -121 -267 435 -393 -617 -21 343 -152 394 326 -30 1130 298 779 5 68 -180 307 -23 138 83 271 162 -206 -155 -714 -215 -275 -470 147 -391 391 -731 -186 -64 -455 -48 -350 377 -523 54 -210 508 -178 -321 371 537 -355 385 65 -268 296 -39 297 -24 327 -107 564 -4079 36 8767 -403 -219 -360 -384 -338 52 -530 24 -663 261 -75 -44 142 -248 -276 79 524 98 1198 -187 151 207 1099 202 69 684 595 996 141 595 -182 219 -1456 -361 -34 -5 650 185 456 -216 31 -388 -198 -1253 -260 -858 -493 -1967 -751 -474 -669 -937 227 941 327 915 -252 602 135 911 114 489 1553 639 576 12 -310 -1102 139 -1282 141 -1437 -162 -643 491 209 351 219 -548 -29 -619 -165 -371 615 -598 -957 -33 529 -228 558 450 -40 1480 399 1110 7 106 -283 493 -38 241 150 500 304 -384 -277 -1270 -367 SS 20210831T140002.1Z 7913.583357 271 1 19.91 2 67.21 88.71 10.76 302.94 0.00 1 0.00 1 0 25 9.715e-03 4.834e-03 3.243e-03 9.613e-04 2.961065e-01 4.927741e-04 3.202630e-03 -6.000000e+00 5.663351e-03 225.51 -2.00 3.11 -2.00 317.30 0.00e+00 2.447300e-03 6.571151e-05 5.856131e-05 -6.000000e+00 2.279206e-04 272.98 -2.00 20.00 -2.00 317.01 0.00e+00 2.563 0.000 302.00 328.00 3 3.3908e+00 1.2915e-03 2.0897e-02 -6.0000e+00 1.4103e-02 1.1964e-02 1.4412e-03 1.3328e-02 -6.0000e+00 1.5341e-02 -2.0791e-03 8.9040e-04 6.6972e-03 -6.0000e+00 9.0311e-03 6.4993e-05 4.5025e-04 1.9529e-03 -6.0000e+00 3.8268e-03 2.4056e-03 -4.0215e-04 2.8756e-05 2.4109e-05 -6.0000e+00 2.7965e-04 8.8594e-03 0.0000e+00 12 1 1 12 9 1 99.64 21.56 0.22 0.00886 0.00584 62 37 1 5 0 313.210 25.39 20.03 21.56 14.67 7.2 660.18 -2651 -2540 -2807 -3470 -3878 -2135 -2219 -1660 -2045 -1086 -628 -2216 -1611 -1180 -297 4 -231 418 436 105 954 1594 742 1396 846 907 902 1080 760 1125 809 206 509 -1112 -1359 -1889 -1422 -1257 -801 -981 -816 -932 -441 -358 -437 -659 -204 -282 213 606 636 775 867 847 814 653 632 494 268 688 785 1216 948 212 54 17 -258 231 185 194 180 -250 32 -16 -74 117 -61 -16 -181 -779 -911 -1581 -1337 -1173 -983 -532 -216 298 143 591 292 549 630 666 402 669 722 262 26 -120 -408 -412 205 -404 -526 -568 -448 -387 -44 60 179 47 -71 -221 95 186 147 258 16 -425 -237 -245 -40 159 422 435 924 677 618 472 140 -153 243 73 61 -36 68 19 -244 -261 -576 -332 -269 -275 -301 -338 -349 -211 -215 -176 -235 -126 -73 -289 -243 -206 -59 1 -52 98 106 26 236 394 193 376 236 260 252 282 193 300 235 65 172 -374 -434 -636 -492 -508 -383 -532 -434 -515 -249 -203 -249 -375 -113 -155 116 341 383 495 586 600 589 480 467 361 193 502 605 940 796 186 46 13 -195 176 155 181 168 -239 30 -15 -64 90 -47 -12 -143 -700 -854 -1627 -1448 -1258 -1131 -645 -272 381 180 695 316 581 629 672 442 764 921 345 35 -155 -524 -490 236 -496 -692 -737 -610 -555 -62 90 283 73 -106 -323 129 243 195 361 23 -630 -350 -356 -59 224 563 590 1216 926 853 692 204 -230 374 118 99 -60 116 33 -423 -436 -930 -547 SS 20210831T141455.6Z 7913.593699 276 1 48.36 2 63.70 89.92 13.77 296.33 0.00 1 0.00 1 0 25 1.186e-02 5.234e-03 6.341e-03 1.796e-03 2.605110e-01 9.207288e-04 2.819344e-03 -6.000000e+00 6.912037e-03 225.51 -2.00 3.11 -2.00 317.61 0.00e+00 2.379662e-03 1.309335e-04 5.384360e-05 -6.000000e+00 2.781838e-04 272.98 -2.00 20.00 -2.00 317.31 0.00e+00 2.245 0.000 302.00 328.00 3 5.0140e+00 2.4210e-03 1.8352e-02 -6.0000e+00 1.7212e-02 2.2919e-02 2.7085e-03 1.1747e-02 -6.0000e+00 1.8724e-02 5.4207e-03 1.6953e-03 5.9115e-03 -6.0000e+00 1.1022e-02 -3.7201e-03 8.5966e-04 1.7324e-03 -6.0000e+00 4.6705e-03 6.0730e-04 -3.3889e-04 5.5000e-05 2.1230e-05 -6.0000e+00 3.4132e-04 9.1166e-03 0.0000e+00 11 1 0 11 8 0 99.93 21.56 0.16 0.00912 0.00657 89 22 1 5 0 543.290 25.39 20.00 21.56 17.14 7.2 674.79 -3826 -3628 -1587 -2413 -1132 -1152 440 -1980 1057 1436 -1654 -3016 -2316 -323 -1034 -164 -222 211 -509 146 -159 144 236 674 1124 1100 110 502 1212 697 129 201 -354 8418 -1886 -2423 -730 -1513 -483 -1144 -574 -1316 -240 -527 -68 -484 -828 -204 -51 881 441 1351 838 1143 539 867 449 749 419 593 791 1158 938 284 263 -178 -2428 -79 40 171 104 31 138 3 181 -28 87 -153 -551 -716 -825 -1462 -1404 -939 -928 -533 53 409 173 409 551 373 381 935 807 777 591 416 16 -207 -359 -397 187 -480 -373 -387 -351 -320 -75 -64 267 -146 -86 -45 10 21 157 159 -68 -505 -252 -92 -3 304 196 172 811 730 528 437 117 -221 138 56 144 45 274 -26 -188 -78 -537 -419 -398 -400 -169 -232 -99 -102 41 -207 116 165 -189 -381 -334 -53 -192 -33 -46 45 -114 33 -36 33 56 164 281 281 28 117 280 169 33 55 -103 2263 -513 -719 -231 -563 -211 -567 -299 -692 -133 -293 -38 -268 -449 -108 -27 470 252 809 532 730 352 572 299 489 281 403 547 864 755 237 210 -132 -1761 -57 31 149 97 29 128 3 144 -21 60 -105 -415 -587 -752 -1459 -1474 -1003 -1065 -645 66 520 217 480 613 381 365 896 837 893 733 561 22 -274 -445 -473 216 -572 -475 -516 -491 -456 -113 -102 436 -236 -132 -66 14 27 209 222 -102 -769 -384 -138 -4 431 263 220 1040 970 724 634 177 -346 213 90 245 80 495 -47 -344 -138 -922 -696