An Ultraviolet Spectrometer for the Rosetta Orbiter

The Alice design is a simple one, requiring no moving parts and minimizing the number of optical surfaces.

Photo courtesy SwRI	Basic Physical Parameters Mass < 3 kg Dimensions 15 x 33 x 9 cm Power Consumption < 3 Watts
	The HIPPS breadboard spectrometer, on which ALICE is based

Basic Analysis Parameters

Spectral Range	700 - 2050 Angstroms
Spectral Resolution	12.5 - 9.8 Angstroms for extended sources
Spatial Resolution	0.6 degrees
Projected Entrance Slit	0.1 by 6 degrees
Nominal Effective Area	0.03cm2 (at 1900 Angstroms), to 0.53cm2 (at 1150 Angstroms)