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HSTONLINE Field Descriptions

You may submit queries using any of the fields listed below. The "Column label" is the name displayed on the search forms and in search results. The "Column name" is the actual column name in the table and needs to be specified in GET requests. (See the MAST Services web page for information on submitting GET requests.) If the "Column name" is in italics, it means the table is indexed on that field and queries with that field will run faster. Clicking on "Data Type" entries will display information on search options.

When using the "user-specified field" form element on a MAST search form, simply select the column "label" in the forms pulldown menu and type in the qualification in the adjacent box. If you specify constraints on the same column in more than one form element, they will all be included in the query and you may not get results you expect. Note the entries in the table below may be sorted by clicking on the column headings.

Catalog Description of HST Table
Last Update:

Column Name Column Label Description Examples/Valid Values Data Type
Column Name Column Label Description Examples/Valid Values Data Type
sci_data_set_name Dataset 9 character name; e.g. J8BA7JCAQ, O4140Q020 First character indicates instrument; J=ACS; N=NICMOS; O=STIS; U=WFPC2; W=WFPC; X=FOC; Y=FOS; Z=GHRS string
sci_archive_class Archive Class AST, CAL string
sci_program_id Prog ID Internal program id string
sci_obset_id Obset ID This is usually the same as the visit number, though in a small number of cases string
sci_obsnum Obsnum Observation number from the SOGS header string
sci_asn_id Asn ID Same as dataset name where it exists string
sci_targname Target Name e.g. ETA-CAR, A+81D266, ANY, PLUTO12, NGC188/54 Observer assigned target name; All capitals; no blank characters; spaces sometimes filled with - ; use with wildcards string
sci_target_descrip Target Descrip Wide variety of target types in differing configurations ; e.g. CLUSTER OF GALAXIES;RICH CLUSTER;HIGH REDSHIFT CLUSTER (Z>0.5); ; STAR;WIND;WOLF RAYET;ISM;RING NEBULA;EMISSION LINE NEBULA;EJECTA; All capitals; Use with wild card string
sci_broad_category Broad Category over 286 combinations; e.g. CLUSTER OF GALAXIES;GALAXY, SOLAR SYSTEM, STELLAR CLUSTER, STAR,T TAURI STAR Use with wild card; e.g. *DWARF NOVA* string
sci_ra RA (J2000) range -90 to 360 deg ra
sci_dec Dec (J2000) Range -90 to +90 deg dec
sci_refnum Ref The number of known literature references associated with the listed proposal ID (HST) or data set name. integer
sci_ra_v1 Ra V1 (J2000) range -90 to 360 deg ra
sci_dec_v1 Dec V1 (J2000) Range -90 to +90 deg dec
sci_expflag Exp Flag NORMAL, UNKNOWN, UNCERTAIN, UPTED, EXCESSIVE DOW, INDETERMINATE Exposure interuption indicator string
sci_start_time Start Time Apr 24 1990 to present datetime
sci_stop_time Stop Time Apr 24 1990 to present datetime
sci_actual_duration Exp Time Range: 0.00 - 230414.5 seconds float
sci_instrume Instrument ACS, FGS, FOC, FOS, HRS, HSP, STIS, WFPC, WFPC2, NICMOS string
sci_instrument_config Instrument Config PC, FGS,HRS, WFC, NIC1, NIC2, NIC3, WFPC2, FOC/48, FOC/96, FOS/BL, FOS/RD, ACS/HRC, ACS/SBC, ACS/WFC, FOC/288, HSP/POL, HSP/UV1, HSP/UV2, HSP/VIS, UNKNOWN, STIS/CCD, STIS/MA1, STIS/MA2, HSP/PMT/VIS, HSP/UNK/PMT, HSP/UNK/POL, HSP/UNK/UV1, HSP/UNK/UV2, HSP/UNK/VIS, HSP/UV2/UV1, HSP/VIS/PMT, STIS/FUV-MAMA, STIS/NUV-MAMA string
sci_operating_mode Operating Mode ACQ, LOS, MAP, OCC, POS, DATA, RAMP, SCAN, SPEC, ACCUM, IMAGE, OSCAN, RAPID, TRANS, UVOBS, WSCAN, DEFCAL, PERIOD, SINGLE, UNKNOWN, ACQ/PEAK, STAR-SKY, TIME-TAG, WALKDOWN, BRIGHTOBJ, PHOTOSCAN, ACQ/BINARY, ACQ/PEAKUP, MULTIACCUM, ENGINEERING, PULSEHEIGHT, ACQ/FIRMWARE string
sci_aper_1234 Apertures Examples for WFPC2: PC1, WF2, WF3, WF4, WFALL; Examples for ACS: WFC, HRC, SBC; Examples for STIS: 25MAMA, 50CCD, F25QTZ, 50CORON; Examples for NICMOS: NIC1, NIC2-FIX, NIC2-CORON1 See href="/hst/aperturelist.html" a complete list string
sci_spec_1234 Filters/Gratings Over 850 options:; examples: G160L, G270M, G230LB, F300W See href="/hst/filterlist.html" a more complete list ; Sometimes combined so wildcard search may be needed string
sci_spectral_res Spectral Res range 0.0 - 114000.0 float
sci_spectrum_end Spectrum End range 0 to 30000 float
sci_spectrum_start Spectrum Start range 0 to 30000 float
sci_bandwidth Bandwidth ACS: 0 - 2105.3271; WFPC2: 21.0 - 5365; STIS: -1934. - 5030.0; NICMOS: 0.0 - 3318; GHRS: 650 - 1000; FOS: 450 - 7350; WFPC: 20 - 4000; FOC: 208 - 2726 Bandwidth of the data or RMS bandwidth of the photmode (NICMOS) or filter plus detector (ACS). float
sci_central_wavelength Central Wavelength Range 0.0 - 23968.977 float
sci_dispersion Dispersion Range: 0 - 70.280000 float
sci_pixel_res Pixel Res range 0.0 to 3600.0 float
sci_fgslock FGS Lock FINE, GYROS, COARSE, FINE/GY, UNKNOWN string
sci_mtflag MT Flag F, T Moving Target Flag (T=Moving Target) string
sci_pep_id Proposal ID Integer assign to each proposal integer
sci_pi_last_name PI Last Name All capitals ustring
sci_v3_pos_angle V3 Pos Angle Range -306 to +360 float
sci_ecliptic_latitude Ecliptic Latitude Range-90 to +90 deg float
sci_ecliptic_longitude Ecliptic Longitude Range: 0 to 360 deg float
sci_galactic_latitude Galactic Latitude Range: -90 to +90 deg float
sci_galactic_longitude Galactic Longitude Range: 0 to 360 float
sci_sun_alt Sun Alt range -66.286072 to 153.455856 float
sci_pa_aper PA Aper Range -360 to +360 float
sci_costar_deploy COSTAR F, T string
sci_aec AEC C, S C=Calibration, S=Science string
sci_fov_config FOV Config SM-1, SM-2, LAUNCH string
sci_preview_name Preview Name Generally the same as the data set name string
sci_obs_type Obs Type string
sci_hlsp High-Level Science Products integer

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