Table Description:
This table is available for ADQL queries and through the TAP endpoint.
Resource Description:
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/
To cite the table as such, we suggest the following BibTeX entry:
@MISC{vo:HESS_DL3_DR1,
year=2018,
title={H.E.S.S. DL3 public test data release 1},
author={H.E.S.S. collaboration},
url={https://hesr-dr.obspm.fr},
howpublished={{VO} resource provided by the {PADC} {TAP} Server on voparis-tap-he.obspm.fr}
}
Sorted alphabetically. [Sort by DB column index]
| Name | Table Head | Description | Unit | UCD |
|---|---|---|---|---|
| access_estsize | Size | Estimated size of data product | kbyte | phys.size;meta.file |
| access_format | Media Type | MIME type of the resource at access_url | N/A | meta.code.mime |
| access_url | Access URL | The URL at which to obtain the data set. | N/A | meta.ref.url |
| 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 |
| calib_level | Calibration level | Amount of data processing that has been applied to the data [Note calib] | N/A | meta.code;obs.calib |
| coverage | Coverage | introduces an ascii (ST)MOC, v2 (2D footprint on celestial, spherical, or body-related frames, possibly including time) | N/A | pos.outline;obs.field |
| dataproduct_subtype | Subtype | Data product specific type | N/A | meta.code.class |
| dataproduct_type | Product type | High level scientific classification of the data product, taken from an enumeration | N/A | meta.code.class |
| date_end | Date_end | Observation end date | N/A | time.end;obs.exposure |
| date_obs | Date_obs | Observation start date | N/A | time.start;obs.exposure |
| 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 |
| dec_obj | Dec_obj | Declination of OBJECT | deg | pos.eq.dec |
| dec_pnt | Dec_pnt | Observation pointing declination | deg | pos.eq.dec |
| em_max | λ_max | Maximal wavelength represented within the data set | m | em.wl;stat.max |
| em_min | λ_min | Minimal wavelength represented within the data set | m | em.wl;stat.min |
| em_res_power | λ/Δλ | Spectral resolving power lambda/delta lambda | N/A | spect.resolution |
| em_ucd | Spect. UCD | Nature of the product's spectral axis (typically, em.freq, em.wl, or em.energy) | N/A | meta.ucd |
| em_xel | |λ| | Number of elements (typically pixels) along the spectral axis. | N/A | meta.number |
| event_count | Event_count | Number of events | N/A | meta.number |
| facility_name | Facility | Name of the facility at which data was taken | N/A | meta.id;instr.tel |
| glat_pnt | Glat_pnt | Observation pointing Galactic latitude | deg | pos.galactic.lat |
| glon_pnt | Glon_pnt | Observation pointing Galactic longitude | deg | pos.galactic.lon |
| instrument_name | Instrument | Name of the instrument that produced the data | N/A | meta.id;instr |
| livetime | Livetime | Total livetime (observation minus dead time) | s | time |
| muoneff | Muoneff | Mean muon efficiency. Currently use definitions from analysis chain, since creating a unified specification is tricky. | N/A | N/A |
| n_tels | N_tels | Number of participating telescopes | N/A | meta.number |
| o_ucd | Obs. UCD | UCD for the product's observable | N/A | meta.ucd |
| object | Object | Primary target of the observation | N/A | meta.id;src |
| obs_collection | Collection | Name of a data collection (e.g., project name) this data belongs to | N/A | meta.id |
| obs_creator_did | Creator DID | Dataset identifier assigned by the creator. | N/A | meta.id |
| obs_id | Obs. Id | Unique identifier for an observation | N/A | meta.id |
| obs_publisher_did | Pub. DID | Dataset identifier assigned by the publisher. | N/A | meta.ref.ivoid |
| obs_title | Title | Free-from title of the data set | N/A | meta.title;obs |
| 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 |
| pol_states | Pol. States | List of polarization states in the data set | N/A | meta.code;phys.polarization |
| pol_xel | |Pol| | Number of elements (typically pixels) along the polarization axis. | N/A | meta.number |
| preview | Preview | URL of a preview (low-resolution, quick-to-retrieve representation) of the data. | N/A | meta.ref.url;meta.preview |
| 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 |
| ra_obj | Ra_obj | Right ascension of OBJECT | deg | pos.eq.ra |
| ra_pnt | Ra_pnt | Observation pointing right ascension | deg | pos.eq.ra |
| s_dec | Dec | Dec of (center of) observation, ICRS | deg | pos.eq.dec |
| s_fov | FoV | Approximate spatial extent for the region covered by the observation | deg | phys.angSize;instr.fov |
| s_pixel_scale | Pix. Scale | Sampling period in world coordinate units along the spatial axis | arcsec | phys.angSize;instr.pixel |
| s_ra | RA | RA of (center of) observation, ICRS | deg | pos.eq.ra |
| s_region | coverage | Region covered by the observation, as a polygon | N/A | pos.outline;obs.field |
| s_resolution | Space Res. | Best spatial resolution within the data set | arcsec | pos.angResolution |
| s_xel1 | |X| | Number of elements (typically pixels) along the first spatial axis. | N/A | meta.number |
| s_xel2 | |Y| | Number of elements (typically pixels) along the second spatial axis. | N/A | meta.number |
| safe_energy_hi | Safe_energy_hi | High energy threshold | TeV | em.energy;stat.max |
| safe_energy_lo | Safe_energy_lo | Low energy threshold | TeV | em.energy;stat.min |
| source_table | Source Table | Name of a TAP-queriable table this data originates from. This source table usually provides more information on the the data than what is given in obscore. See the TAP_SCHEMA of the originating TAP server for details. | N/A | meta.id;meta.table |
| t_exptime | Exp. Time | Total exposure time | s | time.duration;obs.exposure |
| t_max | Max. t | Upper bound of times represented in the data set | d | time.end;obs.exposure |
| t_min | Min. t | Lower bound of times represented in the data set | d | time.start;obs.exposure |
| t_resolution | Res. t | Minimal significant time interval along the time axis | s | time.resolution |
| t_xel | |t| | Number of elements (typically pixels) along the time axis. | N/A | meta.number |
| target_class | Target Class | Class of the target object (star, QSO, ...) | N/A | src.class |
| target_name | Target Name | Object a targeted observation targeted | N/A | meta.id;src |
| target_name_subset | Target_name_subset | The observation subset name | N/A | meta.id;src |
| target_offset | Target_offset | Distance between observation position and target | deg | instr.offset |
| target_tag | Target_tag | Target tag | N/A | meta.id;src.class |
| tellist | Tellist | Telescope IDs (e.g. ?1,2,3,4?) | N/A | meta.id;instr.tel |
| time_end | Time_end | Observation end time | N/A | time.end;obs.exposure |
| time_obs | Time_obs | Observation start time | N/A | time.start;obs.exposure |
| 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 |
| zen_pnt | Zen_pnt | Observation pointing zenith angle at observation mid-time TMID | deg | pos |
Columns that are parts of indices are marked like this.
VO nerds may sometimes need VOResource XML for this table.