instrumental error การใช้

• Certain instrumental errors could be averaged out by reversing the telescope on its mounting.
• With the current methods, the instrumental error in the measured hairpin length is 1-1.5 nm.
• Gravimetry provides very little room for instrumental error and does not require a series of standards for calculation of an unknown.
• Although a light-curve could not be obtained and a systematic instrumental error could not be ruled out, the body displayed a slowly, ever decreasing brightness of 0.1 in magnitude, which would translate into a rotation period of at least 400 hours ( ).