******************** AGILE Public Data Release Note v4.0 ******************* User's README AGILE Data Center (ADC), October 6, 2010 The proprietary period for the AGILE Cycle-2 Observation Blocks (OB) (from OB 6500 to OB 8200) has currently expired, and the data are public and available from the ASDC Multimission Archive webpage http://www.asdc.asi.it/mmia/ for the AGILE Mission. This reprocessed archive for public Cycle-1 and Cycle-2 OB is homogeneous with reprocessed proprietary data delivered on October 6, 2009 (v3.0) to successful proponents of the AGILE Guest Observer Program. Data were processed with the AGILE "Standard Analysis" OB pipeline, which cleans the archive by eliminating data corresponding to repointing slews and occasional losses of fine-pointing attitude. The OB pipeline software version used is: 3_18_17_16. A new complete data reprocessing with the latest available software is on-going and we plan to make a new public delivery on December 22, 2010, at the end of proprietary period of all the AGILE Cycle-2 OB. **************** ** NEWS ** **************** A new interactive tool has been developed to allow ASDC Web users to preview the AGILE public data fields and to perform an interactive preliminary analysis around a chosen sky position. Warning: use only as a preview of the AGILE gamma-ray field. To perform your own scientific analysis, please download data and use the official public AGILE software. To access the preview tool click on "On-line Analysis" in the query output table, under the "GRID Interactive Archive" column. The interactive ASDC tool uses the XIMAGE software package for multi-mission X-ray astronomy (v4.5.1), adapted to gamma-ray image display and data analysis. ******************************************************************************************************************************* ****** Delivered Data ****** ******************************************************************************************************************************* AGILE Cycle-1 observations were already public and they were structured as a series of 29 OBs, each corresponding to a unique identifing number. The schedule can be found at: http://agile.asdc.asi.it/current_pointing.html (click on the red text: "Click here to show previous pointings"). The set of (v3.0) public GRID data corresponds to all Cycle-1 AGILE observations, following the first year AGILE Baseline Pointing Plan and including 7 Target of Opportunities (ToO) and 1 Partial Repointing: | OB # | OB Name | RA_PNT | DEC_PNT | OB start date | OB end date | Mean OB Exp.| Notes | 1 | 4900 | Cygnus Field 1 | 20 26 47.9 | +53 17 59.9 | 2007-12-01 12:00 | 2007-12-05 09:00 | 7863569 | Baseline | 2 | 4910 | Cygnus Field 1 b<0 | 21 53 59.9 | +38 00 00.0 | 2007-12-05 09:00 | 2007-12-15 12:00 | 17534267 | Partial Rep.| 3 | 4920 | Cygnus Field 1 Ext | 22 15 35.9 | +37 53 59.9 | 2007-12-15 12:00 | 2007-12-16 12:00 | 1818760 | ToO | 4 | 5010 | Virgo Field 1 | 11 58 00.0 | -00 24 00.0 | 2007-12-16 12:00 | 2008-01-08 12:00 | 26087354 | Baseline | 5 | 5100 | Vela Field | 10 45 12.0 | -63 47 59.9 | 2008-01-08 12:00 | 2008-02-01 12:00 | 33770516 | Baseline | 6 | 5200 | South Gal Pole | 04 06 23.9 | -38 06 00.0 | 2008-02-01 12:00 | 2008-02-09 09:00 | 12842897 | Baseline | 7 | 5210 | ToO MKN 421 | 16 48 47.9 | +50 30 00.0 | 2008-02-09 09:00 | 2008-02-12 12:00 | 6068356 | ToO | 8 | 5220 | South Gal Pole Res | 04 27 11.9 | -35 47 59.9 | 2008-02-12 12:00 | 2008-02-14 12:00 | 3550767 | Baseline | 9 | 5300 | Musca Field | 13 51 36.0 | -73 54 00.0 | 2008-02-14 12:00 | 2008-03-01 12:00 | 33480692 | Baseline | 10 | 5400 | Gal. Cent. I OB | 17 04 47.9 | -51 23 59.9 | 2008-03-01 12:00 | 2008-03-16 12:00 | 25219658 | Baseline | 11 | 5450 | Gal. Cent. II OB | 18 14 00.0 | -28 36 00.0 | 2008-03-16 12:00 | 2008-03-30 12:00 | 18890136 | Baseline | 12 | 5500 | Anti-Center | 07 00 00.0 | +21 41 59.9 | 2008-03-30 12:00 | 2008-04-05 12:00 | 9156017 | Baseline | 13 | 5510 | SA Raster Scan 23d | 07 19 59.9 | +28 36 00.0 | 2008-04-05 12:00 | 2008-04-07 12:00 | 3433405 | Baseline | 14 | 5520 | SA Raster Scan 28d | 07 30 23.9 | +35 42 00.0 | 2008-04-07 12:00 | 2008-04-08 12:00 | 624562 | Baseline | 15 | 5530 | Anti Center Res. | 07 28 23.9 | +20 48 00.0 | 2008-04-08 12:00 | 2008-04-10 12:00 | 3495799 | Baseline | 16 | 5600 | Vulpecula Field | 19 36 24.0 | +20 36 00.0 | 2008-04-10 12:00 | 2008-04-30 12:00 | 32487373 | Baseline | 17 | 5700 | North Gal Pole | 16 53 36.0 | +71 00 00.0 | 2008-04-30 12:00 | 2008-05-10 12:00 | 20943837 | Baseline | 18 | 5800 | Cygnus Field 2 | 21 11 12.0 | +35 12 00.0 | 2008-05-10 12:00 | 2008-06-09 18:00 | 46349986 | Baseline | 19 | 5810 | ToO WComae ON +231 | 12 23 12.0 | +29 48 00.0 | 2008-06-09 18:00 | 2008-06-15 12:00 | 9974044 | ToO | 20 | 5820 | Cygnus Field 2 Res | 22 06 47.9 | +50 00 00.0 | 2008-06-15 12:00 | 2008-06-30 12:00 | 28796719 | Baseline | 21 | 5900 | Antlia Field | 11 50 47.9 | -48 36 00.0 | 2008-06-30 12:00 | 2008-07-25 18:00 | 76999062 | Baseline | 22 | 5910 | ToO 3C454.3 | 01 33 12.0 | +38 12 00.0 | 2008-07-25 18:00 | 2008-07-31 12:00 | 18507796 | ToO | 23 | 5920 | ToO 3C454.31 Ext | 02 22 48.0 | +39 00 00.0 | 2008-07-31 12:00 | 2008-08-15 12:00 | 50065481 | ToO | 24 | 6010 | Musca Field 2 Post | 12 52 00.0 | -77 05 59.9 | 2008-08-15 12:00 | 2008-08-31 12:00 | 32538600 | Baseline | 25 | 6110 | ToO SGR 0501+4516 | 04 34 48.0 | +44 17 59.9 | 2008-08-31 12:00 | 2008-09-10 12:00 | 32846816 | ToO | 26 | 6200 | Gal. center 3 | 18 08 47.9 | -28 36 00.0 | 2008-09-10 12:00 | 2008-10-10 12:00 | 91172040 | Baseline | 27 | 6210 | ToO PKS 0537-441 | 06 43 11.9 | -46 36 00.0 | 2008-10-10 12:00 | 2008-10-17 12:00 | 22294784 | ToO | 28 | 6310 | Aquila Field Post | 19 48 24.0 | +10 00 00.0 | 2008-10-17 12:00 | 2008-10-31 12:00 | 37164472 | Baseline | 29 | 6400 | Cygnus Field 3 | 20 07 12.0 | +34 00 00.0 | 2008-10-31 12:00 | 2008-11-30 12:00 | 83470966 | Baseline | AGILE Cycle-2 observations were structured as a series of 24 OBs, each corresponding to a unique identifing number. The schedule can be found at: http://agile.asdc.asi.it/current_pointing.html (click on the red text: "Click here to show previous pointings"). The set of (v3.0) GRID data which become public today corresponds to the first 22 AGILE observations of Cycle-2, from 2008-11-30 to 2009-09-30, following the second year AGILE Baseline Pointing Plan and including 2 Target of Opportunities (ToO) and 1 Partial Repointing: 30 | 6500 | Cygnus Field 4 | 22 02 48.0 | +35 12 00.0 | 2008-11-30 12:00 | 2008-12-20 12:00 | 54434163 | Baseline | 31 | 6600 | Cygnus Field 5 | 23 13 12.0 | +44 17 60.0 | 2008-12-20 12:00 | 2009-01-12 18:00 | 70389796 | Baseline | 32 | 6610 | ToO Carina | 11 07 60.0 | -60 17 60.0 | 2009-01-12 18:00 | 2009-01-19 18:00 | 24357157 | ToO | 33 | 6710 | Cygnus Field 6 | 23 31 36.0 | +73 05 60.0 | 2009-01-19 18:00 | 2009-02-28 12:00 | 121269290 | Baseline | 34 | 6800 | Gal. Center 4 | 17 31 12.0 | -29 18 00.0 | 2009-02-28 12:00 | 2009-03-25 12:00 | 79351215 | Baseline | 35 | 6810 | Gal. Center prol | 18 37 60.0 | -29 18 00.0 | 2009-03-25 12:00 | 2009-03-31 12:00 | 18985924 | Partial Rep | 36 | 6910 | Crab Field 1 post | 07 09 36.0 | +31 36 00.0 | 2009-03-31 12:00 | 2009-04-07 12:00 | 22634242 | Baseline | 37 | 7010 | Aquila Field 1 post| 19 33 60.0 | -19 18 00.0 | 2009-04-07 12:00 | 2009-04-15 12:00 | 25463004 | Baseline | 38 | 7100 | Aquila Field 2 | 19 48 48.0 | +16 00 00.0 | 2009-04-15 12:00 | 2009-04-30 12:00 | 40659296 | Baseline | 39 | 7200 | Cygnus Field 7 | 20 21 12.0 | +29 23 60.0 | 2009-04-30 12:00 | 2009-05-15 12:00 | 46628762 | Baseline | 40 | 7300 | Vela Field 2 | 09 33 36.0 | -36 00 00.0 | 2009-05-15 12:00 | 2009-05-25 18:00 | 29700936 | Baseline | 41 | 7310 | 3rd ToO 3C454.3 | 22 03 36.0 | +10 48 00.0 | 2009-05-25 18:00 | 2009-05-29 12:00 | 9751998 | ToO | 42 | 7320 | Vela Field 2 Resum | 09 18 24.0 | -40 30 00.0 | 2009-05-29 12:00 | 2009-06-04 12:00 | 19212995 | Baseline | 43 | 7410 | Virgo Field 2 post | 11 33 60.0 | +10 41 60.0 | 2009-06-04 12:00 | 2009-06-15 12:00 | 34634675 | Baseline | 44 | 7500 | Cygnus Field 8 | 22 22 48.0 | +43 00 00.0 | 2009-06-15 12:00 | 2009-06-25 12:00 | 32989242 | Baseline | 45 | 7600 | Cygnus Field 9 | 23 43 12.0 | +38 00 00.0 | 2009-06-25 12:00 | 2009-07-15 12:00 | 62235955 | Baseline | 46 | 7700 | Cygnus Field 10 | 23 16 24.0 | +66 35 60.0 | 2009-07-15 12:00 | 2009-08-12 12:00 | 94926497 | Baseline | 47 | 7800 | Vela Field 3 | 14 30 00.0 | -63 30 00.0 | 2009-08-12 12:00 | 2009-08-31 12:00 | 64198325 | Baseline | 48 | 7900 | Norma Field | 16 40 24.0 | -35 36 00.0 | 2009-08-31 12:00 | 2009-09-10 12:00 | 32808480 | Baseline | 49 | 8000 | SA Crab (15,6.3) | 05 21 12.0 | +06 24 00.0 | 2009-09-10 12:00 | 2009-09-13 12:00 | 7357784 | Baseline | 50 | 8100 | SA Crab (25,3.5) | 05 33 36.0 | -03 06 00.0 | 2009-09-13 12:00 | 2009-09-16 12:00 | 9945973 | Baseline | 51 | 8200 | Galactic Center 5 | 18 05 12.0 | -23 30 00.0 | 2009-09-16 12:00 | 2009-09-30 12:00 | 42668912 | Baseline | ******************************************************************************************************************************* ****** Data Retrieval ****** ******************************************************************************************************************************* The query for the AGILE Mission data in the ASDC Multi Mission Interactive Archive http://www.asdc.asi.it/mmia/ produces an interactive table showing all OBs selected according to the chosen option: - either the observation mean pointing position (RA_PNT, DEC_PNT) lies within 50 degrees from the source position - or the observation lies in the specified time-range. - or the observation has the selected parameters (OB number values). A query with "Search Type" by "Time", with default Start Date and End Date values results in a complete table of all public AGILE OB available to date. The Mean OB Exposure column (in cm2 s) in the interactive table corresponds to the effective area associated to the FM filtered events. The "Public access" link makes it possible to download the following v2.0 files for each OB: - the spacecraft auxiliary (LOG) files (ag-.LOG__GO.gz) needed for the data analysis and covering approximately one-day of observation within each OB, are grouped under the directory LOG__GO: * LOG__GO ag-.LOG__GO ag-.LOG__GO ..... ..... ag-.LOG__GO and a single general LOG index file with suffix: LOG__GO-.index WARNING: LOG files have a very accurate time resolution of 100 msec and need several GB of available disk space. - two event files including all gamma-ray events in the GRID Field of View (FoV) using AGILE event filters: the standard OB event file with suffix: EVT__GO_FM and its index file with suffix: EVT__GO_FM.index the additional OB event file with suffix: EVT__GO_FT3AB and its index file with suffix: EVT__GO_FT3AB.index WARNING: data analysis with event files obtained with FT3AB filter may be more efficient in detecting sources with a soft energy spectrum, but there may be noisy residual artifacts at the border of the Field of View (off-axis angle> 40 deg). - three maps, count, exposure and diffuse background, centered on the mean OB pointing position, with suffix: COUNTS__GO_FM EXP__GO_FM GAS__GO_FM These maps were automatically generated with the FM filter with the following parameters: mdim=80.0 index=-2.1 earth_tol=3.0 mres=0.25 fovrad=80 keepmono=NO lonpole=180 albrad=80 phasecode=18 emin=100 y_tol=0.5 projection=ARC emax=50000 roll_tol=360.0 step=4 To produce your own maps and run likelihood tasks please download and install the public AGILE software available at: http://agile.asdc.asi.it/public/ and follow the Software User Manual included. - a GIF file showing the images of both the OB (FM) exposure and count maps. For illustrative purpose only, the count map image includes automatic candidate detections in the FoV obtained with XIMAGE software. NOTE: if you choose to download data files with the default option "Automatically unpack the data using a Java applet" then each file name in the corresponding .index file must be changed removing the .gz suffix before running map generator tasks. ******************************************************************************************************************************* *** Note on AGILE Filters *** ******************************************************************************************************************************* The standard AGILE event filter is the FM filter, optimized up to 60 deg off-axis. The AGILE Team recommmends the use of v3.0 EVT files produced with the FM filter for gamma-ray source standard likelihood analysis. EVT files produced with the FT3AB filter are also published, but they are delivered with a warning (see above). Each filter is associated with its own calibration and diffuse model files. Be careful always to use the calibration and diffuse model files appropriate to the chosen EVT filter type. Calibration and diffuse model files are delivered with the public software release under the directory $ADC/scientific analysis/data. * FM filter: if you use the FM-filtered event file with suffix: EVT__GO_FM you should always use as an input to scientific software tasks: - effective area files of type *FM*.sar.gz - energy dispersion files of type *FM*.edp.gz - point spread funcion files of type *FM*.psd.gz - flux correction files of type *FM*.expcorr.gz - diffuse model files of type *FM*.conv.sky.gz * FT3AB filter: if you use the FT3AB-filtered event file with suffix: EVT__GO_FT3AB you should always use as an input to scientific software tasks: - effective area files of type *FT3AB*.sar.gz - energy dispersion files of type *FT3AB*.edp.gz - point spread funcion files of type *FT3AB*.psd.gz - flux correction files of type *FT3AB*.expcorr.gz - diffuse model files of type *FT3AB*.conv.sky.gz * Old F4 filter: this filter is not included in the new data delivery. If you want to use old F4-filtered event files of previous public data delivery v1.0 with suffix: EVT__GO you should always use as an input of scientific software tasks: - effective area files of type *F4*.sar.gz - energy dispersion files of type *F4*.edp.gz - point spread funcion files of type *F4*.psd.gz - flux correction files of type *F4*.expcorr.gz - diffuse model files of type *F4*.conv.sky.gz For further details please follow the instructions given in the Software User Manual. ------------------------------------------------------------------------------- Enjoy!