STScI . ... Phase I Proposing . ... Astronomer's Proposal Tool . ... STScI solicits proposals for HST Observing, Archival Theoretical Research. ... HST Cycle 24 Phase II Proposal Deadline . The Call for Proposals (CP) invites the astronomical community to propose for observing time on HST in a given cycle (nominally one year in duration). It summarizes the policies and procedures for proposing in that cycle of HST observing, including requests for funding research on archival HST data. ...

ST-ECF Instrument Science Report WFC3-2009-17 WFC3 SMOV proposal 11552: Calibration of the G141 grism H. Kuntschner, H. Bushouse, M. KЭmmel, J. R. Walsh October 16, 2009 A BSTR A C T Based on the SMOV observations, the performance of the WFC3 near-IR grism G141 has been assessed. ... Figure 2: Image of the G141 grism exposure (iab908s4q_flt.fits). ... 12 2 ST-ECF Technical Instrument Report WFC3-2009-17 Figure 5: Linear fit for the wavelength solution of the G141 grism. ...

... The science from both these missions contributed to three of the Nobel Prizes ­ Giacconi (2002), Mather, and Smoot (2006) - awarded for NASA-based science. ... We encourage NASA to seek new launch capabilities to fill this strategic gap in moderate lift rockets to enable the Explorer program to continue launching missions with significant science payoff but reduced costs and timescales compared to large strategic missions. ... 18 Appendix B: Explorer Missions 1989-present (From PILMSS) No . ...