Either the aircraft speed is measured by the on-board instruments or assessed.
Wind, air temperature, humidity, solar radiation, ADCP velocity measurements came from the on-board instruments (Hebert and Moum 1994).
Data from on-board instruments, can facilitate development of micro-scale emission models (Frey et al. 2003).
Some metallic parts of the two on-board instruments, SWEAP (a Faraday cup) and FIELDS (antennas), will directly face the Sun, while the rest of the payload will be protected by a heat shield.
The details of the LES system, ground observation of the lithium resonance scattering light and the other on-board instruments are provided in Yamamoto et al (in preparation) and Watanabe et al. (in preparation).
The on-board instruments measured everything from temperature to pressure to the size and density of dust and ice particles in the clouds, the researchers gathering streams of information which will later be fed into computer weather models.
With the increase of payload sensitivity (such as high precision optics for sub-metric imager), micro-vibration disturbances generated by spinning actuators, if not controlled, may affect on-board instruments and may worsen the quality of pictures taken by an Earth observation imager.
The probe received a gravity assist from Jupiter in February 2007, examining some of Jupiter's inner moons and testing on-board instruments during the flyby.
Then the new characteristics of the on-board instrument are detailed.
