Triggering pages CXC staff: Please read and time your triggering appropriately
Submission of TOO triggers and DDT requests with response windows starting at less than 5 days will trigger pagers/phones for selected CXC personnel - some 24 hrs per day 7 days per week and some between 8-22H (EDT/EST) 7 days per week. Please be sure that your program requires rapid turn-around before submitting requests with response windows starting at 5 days or less, and to the extent possible please submit such requests during normal EDT/EST weekday working hours.
TOOs/DDT requests with Medium turn-around times having response start windows from 5 to 30 days trigger pagers/phones on weekend days as well as on work days from 8-22H EDT/EST. To the extent possible please submit such triggers/requests during normal EDT/EST weekday working hours.
Modeled on the HST approach, up to 5% of the total Chandra observing time will be reserved for CXC Director's Discretionary Time(DDT) observations. This allocation of time shall include unanticipated, non-peer reviewed TOOs.
Proposals for DDT should be confined to unique scientific opportunities for which the scientific return might be compromised by waiting to propose during the next Chandra Call for Proposals. Proposals which could reasonably go through the peer review process generally will not be favorably received. The request will be assessed by the CXC director in consultation with the NASA Project Scientist.
Proposals should be submitted using the DDT version of RPS.
A modest proprietary period (of up to 3 months) may be granted by the CXC Director on request. Funding may also be provided for such observations if deemed necessary to facilitate maximal scientific return, following a simple, ad-hoc review. If funding is requested a cost proposal may be submitted at any time using the same procedures as for observing proposals. The cost proposal should not be submitted until after the proposal has been approved and is due after the observation is performed.
Chandra Pitch Angle Restrictions:The following links provide instruction and information regarding DDT observations.
