Standard proposals may contain a mixture of Type A, B, and C targets.

• Type A targets
  • Observations of the highest scientific merit for which scheduling priority and resources will be devoted.
  • NASA estimates that ~3 Msec (~160 ksec/month) is available for Type A targets in Cycle 8.
  • NASA expects that a significant fraction of Type A observing time will be allocated to long observations.
• Type B targets
  • Have lower priority than Type A targets, but will have a higher scheduling priority than Type D targets.
  • It is unlikely that all Type B targets will be observed.
  • NASA expects ~4 Msec (~220 ksec/month) may be allocated to Type B targets.
  • Following the allocation of time to the highest ranking Type A targets, other Type A proposed targets may be allocated time as Type B targets at the recommendation of the Peer Review Panel.
• Type C targets
  • Very high scientific merit targets that lie at low declinations, (i.e. -50 < Dec < +50 degrees).
  • Proposers should consult the sky visibility plots to assess the relative feasibility of their targets. Please note the dependence of the available observing time on Right Ascension for a given Declination.
  • The best indicator of feasible, low declination targets are the Observing Time Histograms which provide the total amount of observing (exposure) time and the number and duration of the observing windows for a grid of Right Ascensions and Declinations.
  • Approved targets in this category will be scheduled on a best-effort basis.
  • The proposer should refer to the FUSE Sky visibility webpage and Sections 1.3 and 2.2.3 of the Proposal Instructions to obtain further information on Feasibility requirements for low declination targets.
• Type D targets
  • These targets correspond to the Survey program category.
  • NASA expects ~6 Msec (~300 ksec/month) can be allocated to Type D targets.