Data Archive
Info on query parameters
Common parameters - Simple search
Some query parameters are common to all the search tabs
-  File name if you know the exact file name of a dataset in
the archive, you can use this query parameter to retrieve the
observation.
- Name Resolver insert a source name and the Sesame name resolver
will parse names commonly found in literature and return the
coordinates (wildcards are not supported). Sesame makes use of
Simbad, NED, and VizieR databases to resolve source names.
- Radius the default search radius is 14 arcmin. All observations
whose footprints overlap with the search cone will be returned.
- Observation date/Obs date start/end date of the observation. Time is set
to 00:00. Note that if you specify a range the query will return
all observations found from 00:00 of start date to 00:00 of end
date (i.e. the day of end date is not included in the search).
- Project id unique identification code assigned by the INAF Radio
Telescopes Proposal Submission system.
VLBI-IT specific parameters
- Frequency observed frequency (MHz). Specify start and/or end
frequency for the search. If a frequency range is given,
observations with spectral window(s) overlapping that range are
returned.
- Antennas names for the Italian antennas. Observations
including the selected antennas will be retrieved. To select more
than one antenna, Shift+click on the names.
- Data rate observation data rate
- Spectral channels number of spectral channels used in the
correlation.
- Spectral resolution spectral channel width (MHz)
- Observation duration total observing (scan) time for a
source
Single Dish specific parameters
- Equinox equinox of source RA, Dec.
- Telescope telescope name. All the observations obtained with the
specified telescope will be returned.
- Frontend receiver code. If a telescope name is specified,
it will be possible to select only frontend codes available for
that telescope.
- Backend backend name. If a telescope name is specified, it will
be possible to select only backends available for that
telescope.
- Frequency observed frequency (MHz). Specify start and/or end
frequency for the search. If a frequency range is given,
observations with spectral window(s) overlapping that range are
returned.
- Bandwidth observation bandwidth per IF. Specify start and/or
end values for bandwidth. If a bandwidth range is given,
observations with spectral window(s) overlapping that range are
returned.
- Spectral resolution spectral channel width. Specify start and/or
end values for spectral resolution. If a range is given,
observations with spectral resolution matching the interval are
returned.
- Frequency bins number of spectral channels in a spectral
section.
- Rest frequency for spectroscopic observations, rest frequency of
the observed line in a spectral section.
- Exposure time scan integration time.
- LST Local Sidereal Time for the observation. A range or
min/max values can be specified.
- Scan type observation scan type. Possible values are listed.
Pulsar specific parameters
- Frequency/Frequency band by choosing "free range" or "band"
for "Frequency selection mode" two different query modes are
possible. In the first case it is possible to specify start and/or
end frequency (MHz) for the search and all observations with spectral
window(s) overlapping that range are returned. In the second case
it is possible to select among receivers in the displayed menu and
observations making use of that receiver will be returned.
- Observation mode pulsar online processing mode. It is possible
to select among "search" (SRCH), "fold" (PSR) and "cal" (CAL)
modes.
- No. of polarisations (NPOL) number of polarisations. If
checked, the value is returned in the output table.
- No. of bits per sample (NBITS) number of bits per sample. If
checked, the value is returned in the output table.
- Bandwidth observation bandwidth (MHz). Specify start and/or end
values for bandwidth. If a bandwidth range is given,
observations with spectral window(s) overlapping that range are
returned.
- Spectral resolution spectral channel width (MHz). Specify start
and/or end values for spectral resolution. If a range is given,
observations with spectral resolution matching the interval are
returned.
- TBIN Time per bin or sample. For fold-mode data, TBIN is the
folding period divided by the Nr of bins per period NBIN. For
search-mode data, TBIN is the sample interval.