**Data table header descriptions** |

**ID_REF** |
ID_REF |

**CH1I_MEAN** |
Mean feature pixel intensity at wavelength 532 nm.; Type: integer; Scale: linear_scale |

**CH2I_MEAN** |
Mean feature pixel intensity at wavelength 635 nm.; Type: integer; Scale: linear_scale |

**CH1B_MEDIAN** |
The median feature background intensity at wavelength 532 nm.; Type: integer; Scale: linear_scale; Channel: Cy3 Channel; Background |

**CH2B_MEDIAN** |
The median feature background intensity at wavelength 635 nm.; Type: integer; Scale: linear_scale; Channel: Cy5 channel; Background |

**CH1D_MEAN** |
The mean feature pixel intensity at wavelength 532 nm with the median background subtracted.; Type: integer; Scale: linear_scale; Channel: Cy3 Channel |

**CH2D_MEAN** |
.The mean feature pixel intensity at wavelength 635 nm with the median background subtracted.; Type: integer; Scale: linear_scale; Channel: Cy5 channel |

**CH1I_MEDIAN** |
Median feature pixel intensity at wavelength 532 nm.; Type: integer; Scale: linear_scale |

**CH2I_MEDIAN** |
Median feature pixel intensity at wavelength 635 nm.; Type: integer; Scale: linear_scale |

**CH1B_MEAN** |
The mean feature background intensity at wavelength 532 nm.; Type: integer; Scale: linear_scale; Background |

**CH2B_MEAN** |
The mean feature background intensity at wavelength 635 nm.; Type: integer; Scale: linear_scale; Background |

**CH1D_MEDIAN** |
The median feature pixel intensity at wavelength 532 nm with the median background subtracted.; Type: integer; Scale: linear_scale |

**CH2D_MEDIAN** |
The median feature pixel intensity at wavelength 635 nm with the median background subtracted.; Type: integer; Scale: linear_scale |

**CH1_PER_SAT** |
The percentage of feature pixels at wavelength 532 nm that are saturated.; Type: integer; Scale: linear_scale |

**CH2_PER_SAT** |
The percentage of feature pixels at wavelength 635 nm that are saturated.; Type: integer; Scale: linear_scale |

**CH1I_SD** |
The standard deviation of the feature intensity at wavelength 532 nm.; Type: integer; Scale: linear_scale; Channel: Cy3 Channel |

**CH2I_SD** |
The standard deviation of the feature pixel intensity at wavelength 635 nm.; Type: integer; Scale: linear_scale; Channel: Cy5 channel |

**CH1B_SD** |
The standard deviation of the feature background intensity at wavelength 532 nm.; Type: float; Scale: linear_scale; Channel: Cy3 Channel; Background |

**CH2B_SD** |
The standard deviation of the feature background intensity at wavelength 635 nm.; Type: integer; Scale: linear_scale; Channel: Cy5 channel; Background |

**PERGTBCH1I_1SD** |
The percentage of feature pixels with intensities more than one standard deviation above the background pixel intensity, at wavelength 532 nm.; Type: integer; Scale: linear_scale |

**PERGTBCH2I_1SD** |
The percentage of feature pixels with intensities more than one standard deviation above the background pixel intensity, at wavelength 635 nm.; Type: integer; Scale: linear_scale |

**PERGTBCH1I_2SD** |
The percentage of feature pixels with intensities more than two standard deviations above the background pixel intensity, at wavelength 532 nm.; Type: integer; Scale: linear_scale |

**PERGTBCH2I_2SD** |
The percentage of feature pixels with intensities more than two standard deviations above the background pixel intensity, at wavelength 532 nm.; Type: integer; Scale: linear_scale |

**SUM_MEAN** |
The sum of the arithmetic mean intensities for each wavelength, with the median background subtracted.; Type: integer; Scale: linear_scale |

**SUM_MEDIAN** |
The sum of the median intensities for each wavelength, with the median background subtracted.; Type: integer; Scale: linear_scale |

**RAT1_MEAN** |
Ratio of the arithmetic mean intensities of each spot for each wavelength, with the median background subtracted. Channel 1/Channel 2 ratio, (CH1I_MEAN - CH1B_MEDIAN)/(CH2I_MEAN - CH2B_MEDIAN) or Green/Red ratio.; Type: float; Scale: linear_scale |

**RAT2_MEAN** |
The ratio of the arithmetic mean intensities of each feature for each wavelength, with the median background subtracted.; Type: float; Scale: linear_scale |

**RAT2_MEDIAN** |
The ratio of the median intensities of each feature for each wavelength, with the median background subtracted.; Type: float; Scale: linear_scale |

**PIX_RAT2_MEAN** |
The geometric mean of the pixel-by-pixel ratios of pixel intensities, with the median background subtracted.; Type: float; Scale: linear_scale |

**PIX_RAT2_MEDIAN** |
The median of pixel-by-pixel ratios of pixel intensities, with the median background subtracted.; Type: float; Scale: linear_scale |

**RAT2_SD** |
The geometric standard deviation of the pixel intensity ratios.; Type: float; Scale: linear_scale |

**TOT_SPIX** |
The total number of feature pixels.; Type: integer; Scale: linear_scale |

**TOT_BPIX** |
The total number of background pixels.; Type: integer; Scale: linear_scale |

**REGR** |
The regression ratio of every pixel in a 2-feature-diameter circle around the center of the feature.; Type: float; Scale: linear_scale |

**CORR** |
The correlation between channel1 (Cy3) & Channel 2 (Cy5) pixels within the spot, and is a useful quality control parameter. Generally, high values imply better fit & good spot quality.; Type: float; Scale: linear_scale |

**DIAMETER** |
The diameter in um of the feature-indicator.; Type: integer; Scale: linear_scale |

**X_COORD** |
X-coordinate of the center of the spot-indicator associated with the spot, where (0,0) is the top left of the image.; Type: integer; Scale: linear_scale |

**Y_COORD** |
Y-coordinate of the center of the spot-indicator associated with the spot, where (0,0) is the top left of the image.; Type: integer; Scale: linear_scale |

**TOP** |
Box top: int(((centerX - radius) - Xoffset) / pixelSize).; Type: integer; Scale: linear_scale |

**BOT** |
Box bottom: int(((centerX + radius) - Xoffset) / pixelSize).; Type: integer; Scale: linear_scale |

**LEFT** |
Box left: int(((centerY - radius) - yoffset) / pixelSize).; Type: integer; Scale: linear_scale |

**RIGHT** |
Box right: int(((centerY + radius) - yoffset) / pixelSize); Type: integer; Scale: linear_scale |

**FLAG** |
The type of flag associated with a feature: -100 = user-flagged null spot; -50 = software-flagged null spot; 0 = spot valid.; Type: integer; Scale: linear_scale |

**CH2IN_MEAN** |
Normalized value of mean Channel 2 (usually 635 nm) intensity (CH2I_MEAN/Normalization factor).; Type: integer; Scale: linear_scale; Channel: Cy5 channel |

**CH2BN_MEDIAN** |
Normalized value of median Channel 2 (usually 635 nm) background (CH2B_MEDIAN/Normalization factor).; Type: integer; Scale: linear_scale; Channel: Cy5 channel; Background |

**CH2DN_MEAN** |
Normalized value of mean Channel 2 (usually 635 nm) intensity with normalized background subtracted (CH2IN_MEAN - CH2BN_MEDIAN).; Type: integer; Scale: linear_scale; Channel: Cy5 channel |

**RAT2N_MEAN** |
Type: float; Scale: linear_scale |

**CH2IN_MEDIAN** |
Normalized value of median Channel 2 (usually 635 nm) intensity (CH2I_MEDIAN/Normalization factor).; Type: integer; Scale: linear_scale |

**CH2DN_MEDIAN** |
Normalized value of median Channel 2 (usually 635 nm) intensity with normalized background subtracted (CH2IN_MEDIAN - CH2BN_MEDIAN).; Type: integer; Scale: linear_scale |

**RAT1N_MEAN** |
Ratio of the means of Channel 1 (usually 532 nm) intensity to normalized Channel 2 (usually 635 nm) intensity with median background subtracted (CH1D_MEAN/CH2DN_MEAN). Channel 1/Channel 2 ratio normalized or Green/Red ratio normalized.; Type: float; Scale: linear_scale |

**RAT2N_MEDIAN** |
Channel 2/Channel 1 ratio normalized, RAT2_MEDIAN/Normalization factor or Red/Green median ratio normalized.; Type: float; Scale: linear_scale |

**LOG_RAT2N_MEAN** |
Log (base 2) of the ratio of the mean of Channel 2 (usually 635 nm) to Channel 1 (usually 532 nm) [log (base 2) (RAT2N_MEAN)].; Type: float; Scale: log_base_2 |

**VALUE** |
Log (base 2) of the ratio of the median of Channel 2 (usually 635 nm) to Channel 1 (usually 532 nm) [log (base 2) (RAT2N_MEDIAN)].; Type: float; Scale: log_base_2 |