Swift-XRT Monitoring of Fermi-LAT Sources of Interest


The monitoring data shown on this site provides near real-time results from Swift observations of Fermi-LAT "sources of interest" and flaring sources. While this list is dominated by blazars, some X-ray binaries and Galactic transients are also included. The preliminary results on this page are intended to provide rapid feedback to the scientific community to aid in target of opportunity planning, multiwavelength campaigns, and planning of interesting scientific publications.

Data on this site is available to the public (thanks to support from the Fermi GI program and the Swift Team). If you make use of any of these data, we ask that you reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 and that you notify Abe Falcone and Michael Stroh at monitoring@swift.psu.edu.


The results presented on this page are from a preliminary analysis of the Swift-XRT data. The analysis procedure is described in this README file. Since the analysis is performed using automated scripts and the results are not always reviewed by human eyes, we recommend that these data be reviewed by hand before use in publications.

For questions or requests for more detailed analysis, please contact Abe Falcone and Michael Stroh at monitoring@swift.psu.edu. This web site is under construction so please report any web site related problems to the email address listed above.

ChangeLog - Last Updated: 2017-04-01

Upcoming Observations


ChangeLog

04/01/2017
- All data has been reprocessed using FTOOLS version 6.20 and the most recent version of the Swift CALDB.

07/10/2014
- All data has been reprocessed using FTOOLS version 6.16 and the most recent version of the Swift CALDB.

07/02/2014
- All data has been reprocessed using FTOOLS version 6.15.1.

- Any WT data found in the first 150 seconds of a GTI is removed due to issues found during this time regime if the source is close to the hot columns. More information can be found here. We hope this issue will be resolved with xrtgrblc in an upcoming verion of the Swift tools.

- All PC data taken during the XRT anomaly in early June, 2014 is rejected from our processing.

09/02/2013
- All data has been reprocessed using FTOOLS version 6.14.

- Improved our analysis pipeline to take further advantage of multicore architectures. This should result in quicker results for the end user.

05/30/2013
- To help promote multiwavelength coverage, we're now listing the tentative scheduling dates of sources through our approved ToO programs via the Upcoming Observations page. We are also listing next five upcoming observations on the individual source pages. Note that there may be additional observations through other monitoring campaigns that are not listed.

- We removed the light curves from the front page since the target list was getting rather long and preloading all of the images could create unnecessary delays in loading the page depending on a user's bandwidth.

05/26/2013
- All data has been reprocessed using FTOOLS version 6.13 and the most recent version of the Swift CalDB files.

02/01/2013
- Fixed an issue that caused some observations to not be displayed on the web page if they were currently being reprocessed.

01/30/2013
- Made some coding changes and database optimizations to speed up the pipeline for some of the larger datasets.

01/24/2013
- Added summed Photon Counting mode images of fields.
- Added links on source pages to additional programs of interest.
Please email us if you would like your program to be added.
- Fixed an issue with observation ID 00030354002 for 3C 84.
A custom bad pixel file is now used for this observation to filter out a hot column that xrtpipeline wasn't catching by default.

04/16/2012
- All data has been reprocessed using FTOOLS version 6.12.
- Fixed some of the information in the headers of the text files that was missing or incorrect.

03/05/2012
- Rewrote our entire pipeline.
- Mode switching is now filtered out by removing WT bins with less than 15 raw counts in the source region.
- Added finely binned data products that contain all of the individual observation bins.
- Added overall light curve plots with a log y-axis.
- Added detailed light curve files that contain raw rate, net rate and background rate columns.
- Text file data is now listed chronologically instead of by observationID.
- Web site updated to make use of the new data products.
- Various cosmetic changes to the web site.

06/11/2011
- All data has been reprocessed using FTOOLS version 6.11.

03/16/2011
- All data has been reprocessed using FTOOLS version 6.10.

08/16/2010
- All data has been reprocessed using FTOOLS version 6.9 and the most recent version of the Swift CalDB files.


Penn State University Goddard Space Flight Center Swift