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In the first of a series of forthcoming publications, we present apanchromatic catalog of 102 visually-selected early-type galaxies (ETGs) fromobservations in the Early Release Science (ERS) program with the Wide FieldCamera 3 (WFC3) on the Hubble Space Telescope (HST) of the Great ObservatoriesOrigins Deep Survey-South (GOODS-S) field. Our ETGs span a large redshiftrange, 0.35 < z < 1.5, with each redshift spectroscopically-confirmed byprevious published surveys of the ERS field. We combine our measured WFC3 ERSand ACS GOODS-S photometry to gain continuous sensitivity from the rest-framefar-UV to near-IR emission for each ETG. The superior spatial resolution of theHST over this panchromatic baseline allows us to classify the ETGs by theirsmall-scale internal structures, as well as their local environment. By fittingstellar population spectral templates to the broad-band photometry of the ETGs,we determine that the average masses of the ETGs are comparable to thecharacteristic stellar mass of massive galaxies, 11< log(M [Solar]) < 12.  By transforming the observed photometry into the GALEX FUV and NUV, JohnsonV, and SDSS g' and r' bandpasses we identify a noteworthy diversity in therest-frame UV-optical colors and find the mean rest-frame (FUV-V)=3.5 and(NUV-V)=3.3, with 1$\sigma$ standard deviations approximately equal to 1.0. Theblue rest-frame UV-optical colors observed for most of the ETGs are evidencefor star-formation during the preceding gigayear, but no systems exhibitUV-optical photometry consistent with major recent (<~50 Myr) starbursts.Future publications which address the diversity of stellar populations likelyto be present in these ETGs, and the potential mechanisms by which recentstar-formation episodes are activated, are discussed.

A Panchromatic Catalog of Early-Type Galaxies at Intermediate Redshift in the Hubble Space Telescope Wide Field Camera 3 Early Release Science Field