A stable lamp source was developed to characterize the Total Irradiance Monitor (TIM). This lamp source was calibrated for its relative stability and intensity. There are specific requirements for the lamp source to be considered as a stable source for TIM. This lamp source must adhere to these r... Show moreA stable lamp source was developed to characterize the Total Irradiance Monitor (TIM). This lamp source was calibrated for its relative stability and intensity. There are specific requirements for the lamp source to be considered as a stable source for TIM. This lamp source must adhere to these requirements to be acceptable for the actual calibration testing of TIM. Show less