TY - GEN AU - Waters, William R AU - Walker, James H AU - Hattenburg, Albert T C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1987-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.250-7 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1987 TI - Radiance temperature calibrations: ER -