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We examine the constraints that satellite-acquired Type Ia and IIP supernovaapparent magnitude versus redshift data will place on cosmological modelparameters in models with and without a constant or time-variable cosmologicalconstant $\Lambda$. High-quality data which could be acquired in the nearfuture will result in tight constraints on these parameters. For example, ifall other parameters of a spatially-flat model with a constant $\Lambda$ areknown, the supernova data should constrain the non-relativistic matter densityparameter $\Omega_0$ to better than 1% (2%, 0.5%) at 1$\sigma$ with neutral(worst case, best case) assumptions about data quality.Comment: 16 pages, 6 figure

Cosmological Model Parameter Determination from Satellite‐acquired Supernova Apparent Magnitude versus Redshift Data