Earth Probe TOMS (Total Ozone Mapping Spectrometer)

Center of Gravity X-Axis 7.51 in. (190.8 mm) Y-Axis 8.27 in. (210.1 mm) Z-Axis 9.74 in. (247.4 mm) Heat Transfer to/from < 5 Watts Spacecraft Instantaneous Field 3 degrees square of View (Scanner) Manufacturer of Perkin Elmer (Purchased by Instrument Orbital Sciences Corp.) Mass ~34 kg Max. Scan Angle +/- 51 deg. Radiation 20 krad Resonant Frequency > 100 Hz Scan Cycle Time 7.8 sec. Scan Dwell Time 200 milliseconds Scan Steps 35 SEU effect < 1 scan loss/orbit Signal to Noise 5% Ratio TOMS Operating Temp. +10 deg C to +30 deg C. TOMS Power Useage Peak 66.6 Watts Average 21.1 Watts Wavelengths Used Band 1 360.0 +/- 0.2 nm Band 2 331.2 +/- 0.1 nm Band 3 322.3 +/- 0.1 nm Band 4 317.5 +/- 0.1 nm Band 5 312.5 +/- 0.1 nm Band 6 308.6 +/- 0.1 nm

A labelled schematic of the instrument is also available.

TOMS-EP is part of NASA's Earth Science Enterprise , a long term coordinated effort to study the Earth as a global environmental system. The instrument is operated by NASA's Goddard Space Flight Center.