Table information for 'hess_dr.obscore'

General

Table Description: IVOA ObsCore description of event lists for observations in the H.E.S.S. DL3 public test data release 1

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: The release consists of event lists and instrument response functions for observations of various well-known gamma-ray sources (the Crab nebula, PKS 2155-304, MSH 15-52, RX J1713.7-3946) as well as observations of empty fields for background modeling.

For a list of all services and tables belonging to this table's resource, see Information on resource 'H.E.S.S. DL3 public test data release 1'

Resource Reference URL: https://www.mpi-hd.mpg.de/hfm/HESS/pages/dl3-dr1/

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:HFC1T3,
  year=2018,
  title={H.E.S.S. DL3 public test data release 1},
  author={H.E.S.S. collaboration},
  url={https://www.mpi-hd.mpg.de/hfm/HESS/pages/dl3-dr1/},
  howpublished={{VO} resource provided by the {PADC} {TAP} Server on voparis-tap-sandbox.obspm.fr}
}

Columns

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
dataproduct_type Dataproduct_type product type: spectrum or timeseries ... N/A meta.id
dataproduct_subtype Dataproduct_subtype product subtype N/A meta.note
calib_level Calib_level calibration level N/A meta.id
obs_collection Obs_collection name of the data collection N/A meta.id
obs_id Obs_id observation id N/A meta.id
obs_publisher_did Obs_publisher_did dataset identifier given by the publisher N/A meta.id
access_url Access_url URL used to access dataset N/A meta.ref.url
access_format Access_format file content format N/A meta.id
access_estsize Access_estsize estimated size of dataset kbyte phys.size;meta.file
target_name Target_name name of target N/A meta.id;src
s_ra S_ra right ascension of target (ICRS) deg pos.eq.ra
s_dec S_dec declination of target (ICRS) deg pos.eq.dec
s_fov S_fov average diameter of the covered region deg phys.angSize;obs.field
s_region S_region region covered as specified in STC or ADQL N/A N/A
s_resolution S_resolution spatial resolution of data as FWHM arcsec pos.angResolution
t_min T_min start time d time.start;obs.exposure
t_max T_max stop time d time.end;obs.exposure
t_exptime T_exptime total exposure time s time.duration;obs.exposure
t_resolution T_resolution temporal resolution FWHM s time.resolution
em_energy_min_tev Em_energy_min_tev start in spectral coordinates in TeV TeV em.energy;stat.min
em_energy_max_tev Em_energy_max_tev stop in spectral coordinates in TeV TeV em.energy;stat.max
em_min Em_min start in spectral coordinates m em.wl;stat.min
em_max Em_max stop in spectral coordinates m em.wl;stat.max
em_res_power Em_res_power spectral resolving power N/A spect.resolution
o_ucd O_ucd UCD of observable N/A meta.ucd
pol_states Pol_states list of polarization states or NULL if N/A N/A phys.polarization
facility_name Facility_name name of facility used for this observation N/A meta.id;instr.obsty
instrument_name Instrument_name name of the instrument used for this observation N/A instr.experiment
ra_pnt Ra_pnt Observation pointing right ascension deg pos.eq.ra
dec_pnt Dec_pnt Observation pointing declination deg pos.eq.dec
glon_pnt Glon_pnt Observation pointing Galactic longitude deg pos.galactic.lon
glat_pnt Glat_pnt Observation pointing Galactic latitude deg pos.galactic.lat
zen_pnt Zen_pnt Observation pointing zenith angle at observation mid-time TMID deg pos
alt_pnt Alt_pnt Observation pointing altitude at observation mid-time TMID deg pos
az_pnt Az_pnt Observation pointing azimuth at observation mid-time TMID deg pos
object Object Primary target of the observation N/A meta.id;src
ra_obj Ra_obj Right ascension of OBJECT deg pos.eq.ra
dec_obj Dec_obj Declination of OBJECT deg pos.eq.dec
offset_obj Offset_obj Distance between observation position and OBJECT deg instr.offset
ontime Ontime Total observation time (including dead time). Equals TSTOP - TSTART s time.duration
livetime Livetime Total livetime (observation minus dead time) s time
deadc Deadc Dead time correction. It is defined such that LIVETIME = DEADC * ONTIME i.e. the fraction of time the telescope was actually able to take data. N/A time;arith.ratio
tstart Tstart Start time of observation relative to the reference time N/A time.start
tstop Tstop End time of observation relative to the reference time N/A time.end
date_obs Date_obs Observation start date N/A time.start;obs.exposure
time_obs Time_obs Observation start time N/A time.start;obs.exposure
date_end Date_end Observation end date N/A time.end;obs.exposure
time_end Time_end Observation end time N/A time.end;obs.exposure
n_tels N_tels Number of participating telescopes N/A meta.number
tellist Tellist Telescope IDs (e.g. ?1,2,3,4?) N/A meta.id;instr.tel
quality Quality Observation data quality. The following levels of data quality are defined: -1 = unknown quality, 0 = best quality, suitable for spectral analysis, 1 = medium quality, suitable for detection, but not spectra (typically if the atmosphere was hazy), 2 = bad quality, usually not to be used for analysis. N/A meta.code.qual
muoneff Muoneff Mean muon efficiency. Currently use definitions from analysis chain, since creating a unified specification is tricky. N/A N/A
event_count Event_count Number of events N/A meta.number
target_name_subset Target_name_subset The observation subset name N/A meta.id;src
target_tag Target_tag Target tag N/A meta.id;src.class
target_offset Target_offset Distance between observation position and target deg instr.offset
safe_energy_lo Safe_energy_lo Low energy threshold TeV em.energy;stat.min
safe_energy_hi Safe_energy_hi High energy threshold TeV em.energy;stat.max

Columns that are parts of indices are marked like this.

VOResource

VO nerds may sometimes need VOResource XML for this table.

Copyright and such: H.E.S.S. collaboration, 2018. The data and documentation is publicly released by the H.E.S.S. collaboration as a contribution to the ongoing efforts to define a common open format for data level 3 of imaging atmospheric Cherenkov telescopes (IACTs) and IACT open-source science tool development, to enlarge the community involved in IACT data analysis. No scientific publications may be derived from the data. Using the data for new claims about the astrophysical sources is not permitted. When using this data, please include the following attribution: "This work made use of data from the H.E.S.S. DL3 public test data release 1 (HESS DL3 DR1, H.E.S.S. collaboration, 2018)". Alternatively, use the following shorter version, e.g. for presentations: "HESS DL3 DR1, H.E.S.S. collaboration". These terms of use must be included in all copies in full or part of the data.