Friday, May 8, 2009

Fermi LAT weekly report no. 48

** Covered period : 2009/04/27 - 2009/05/03 **


  • PKS 1510-089 seems to fade after the strong flare on past Sunday, halving its flux during the week.
  • 3C273 continues its increasing trend (~2 times past week) with a flux of 1.4+/-0.1e-6 ph/cm^2/s in the weekly time scale.
  • PKS 1502+106 continues its high activity period reaching a flux of 2.4+/-0.7e-6 ph/cm^2/s in the daily time scale.
  • 3C454.3 is quite bright in the end of the week reaching flux of 1.9+/-0.3e-6 ph/cm^2/s.
  • PKS 2155-304 was quite active in the fist half of the week with a flux of 0.5+/-0.1e-6 ph/cm^2/s on April 28th.
  • LSI+61 303 is detected most days.
All the reported fluxes are above 100 MeV.
Note. All the flux reported above are by the ASP analysis and should be considered preliminary and cannot be used for publication, however they are indicative of the flux range and the current status of a source.
Please acknowledge the LAT team if you use information from this report.

For questions and comments please contact:
D. Gasparrini (dario.gasparrini[at] and
F. Longo (francesco.longo[at] for generic information related to this week;
for PKS 1510-089 the LAT contact person is A. Tramacere (tramacer[at];
for PKS 1502+106 the LAT contact person is S. Ciprini (stefano.ciprini[at];

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