Fermi Observing Timeline Utility Search
This utility allows you to search Fermi's observing timelines, both as planned and as-flown, and enables you to specify the information you wish displayed. Please make your choices, and then click on the submit button at the bottom. Depending on the scope of your search, it may take several seconds to obtain your results.
Fermi observations are planned a week at a time. A series of timelines are created before a given mission week, and a final "as-flown" timeline is produced after the observations. This utility displays data from the most recent timeline:
- Long Term Timeline -- data are indicated in blue. Only an observation's assignment to a given week should be considered; this assignment may change.
- Preliminary Science Timeline -- a short term timeline covering one week created three weeks in advance. Observations are likely to occur as scheduled.
- Final Science Timeline -- a short term timeline covering one week created one week in advance. Scheduled observations will almost occur unless interrupted by Target-of-Opportunity observations and gamma-ray burst Autonomous Repoints.
- As-Flown Timeline -- data are indicated in bold. These observations that have already occurred.
Timelines are available starting with Mission Week 6 that began July 10, 2008.
Data Selection
You can select data by one of the following: ObsID, Proposal ID, Principal Investigator, or position; thus the position will be ignored if you search by ObsID, Proposal ID, or Principal Investigator. All searches can be restricted to the mission week containing a specified time range. You can also request all observations during the mission week of a time range by leaving the ObsID, Proposal ID, Principal Investigator and location blank and specifying a time range.