Can I find the actual gain and bias values for a Landsat scene on GloVis?
No, you will not find the actual gain and bias values on GloVis. Gain and bias values can only be obtained when actual data is ordered because to gain and bias values are only available in the final product metadata. These coefficients can then be applied with the DN values within the imagery to convert to accurate radiance values. For information on gain and bias values, go to this site.