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V/146                        LAMOST DR1 catalogs                    (Luo+, 2015)

The first data release (DR1) of the LAMOST regular survey. Luo A.-L., Zhao Y.-H., Zhao G., Deng L.-C., Liu X.-W., Jing Y.-P., Wang G., Zhang H.-T., Shi J.-R., Cui X.-Q., Chu Y.-Q., Li G.-P., Bai Z.-R., Wu Y., Cai Y., Cao S.-Y., Cao Z.-H., Carlin J.L., Chen H.-Y., Chen J.-J., Chen K.-X., Chen L., Chen X.-L., Chen X.-Y., Chen Y., Christlieb N., Chu J.-R., Cui C.-Z., Dong Y.-Q., Du B., Fan D.-W., Feng L., Fu J.-N., Gao P., Gong X.-F., Gu B.-Z., Guo Y.-X., Han Z.-W., He B.-L., Hou J.-L., Hou Y.-H., Hou W., Hu H.-Z., Hu N.-S., Hu Z.-W., Huo Z.-Y., Jia L., Jiang F.-H., Jiang X., Jiang Z.-B., Jin G., Kong X., Kong X., Lei Y.-J., Li A.-H., Li C.-H., Li G.-W., Li H.-N., Li J., Li Q., Li S., Li S.-S., Li X.-N., Li Y., Li Y.-B., Li Y.-P., Liang Y., Lin C.-C., Liu C., Liu G.-R., Liu G.-Q., Liu Z.-G., Lu W.-Z., Luo Y., Mao Y.-D., Newberg H., Ni J.-J., Qi Z.-X., Qi Y.-J., Shen S.-Y., Shi H.-M., Song J., Song Y.-H., Su D.-Q., Su H.-J., Tang Z.-H., Tao Q.-S., Tian Y., Wang D., Wang D.-Q., Wang F.-F., Wang G.-M., Wang H., Wang H.-C., Wang J., Wang J.-N., Wang J.-L., Wang J.-P., Wang J.-X., Wang L., Wang M.-X., Wang S.-G., Wang S.-Q., Wang X., Wang Y.-N., Wang Y., Wang Y.-F., Wang Y.-F., Wei P., Wei M.-Z., Wu H., Wu K.-F., Wu X.-B., Wu Y.-Z., Xing X.-Z., Xu L.-Z., Xu X.-Q., Xu Y., Yan T.-S., Yang D.-H., Yang H.-F., Yang H.-Q., Yang M., Yao Z.-Q., Yu Y., Yuan H., Yuan H.-B., Yuan H.-L., Yuan W.-M., Zhai C., Zhang E.-P., Zhang H.-W., Zhang J.-N., Zhang L.-P., Zhang W., Zhang Y., Zhang Y.-X., Zhang Z.-C., Zhao M., Zhou F., Zhou X., Zhu J., Zhu Y.-T., Zou S.-C., Zuo F. <Res. Astron Astrophys., 15, 1095-1124 (2015)> =2015RAA....15.1095L (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Spectroscopy ; Photometry Keywords: techniques: spectroscopic survey - data release - catalog Abstract: The Large sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) general survey is a spectroscopic survey that will eventually cover approximately half of the celestial sphere and collect 10 million spectra of stars, galaxies and QSOs. Objects in both the pilot survey and the first year regular survey are included in the LAMOST DR1. The pilot survey started in October 2011 and ended in June 2012, and the data have been released to the public as the LAMOST Pilot Data Release in August 2012. The regular survey started in September 2012, and completed its first year of operation in June 2013. The LAMOST DR1 includes a total of 1202 plates containing 2955336 spectra, of which 1790879 spectra have observed signal-to-noise ratio (SNR)≥10. All data with SNR≥2 are formally released as LAMOST DR1 under the LAMOST data policy. This data release contains a total of 2204696 spectra, of which 1944329 are stellar spectra, 12082 are galaxy spectra and 5017 are quasars. The DR1 not only includes spectra, but also three stellar catalogs with measured parameters: late A,FGK-type stars with high quality spectra (1061918 entries), A-type stars (100073 entries), and M-type stars (121522 entries). This paper introduces the survey design, the observational and instrumental limitations, data reduction and analysis, and some caveats. A description of the FITS structure of spectral files and parameter catalogs is also provided. Description: The LAMOST general catalog includes 717469 objects obtained from the LAMOST pilot survey, which contain 648746 stars, 2723 galaxies, 621 quasars and 65406 unknown objects, and 1487200 objects obtained from the LAMOST general survey, which contain 1295583 stars, 9359 galaxies, 4396 quasars and 177862 unknown objects, so this catalog totally includes 2204696 objects including 1,944,329 stars, 12082 galaxies, 5017 quasars and 243268 unknown objects. In this catalog, there are 1186132 objects with SNR of g band larger than 10, 1680794 objects with SNR of i band larger than 10, and 1746202 objects with SNR of g band larger than 10 and SNR of i band larger than 10. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file dr1.dat 343 2204358 LAMOST DR1 catalog (31/03/2016 version) fgkstars.dat 349 1061916 late A,FGK-type stars catalog (31/03/2016 version) (original file name : dr1_stellar) astars.dat 440 100070 A-type stars catalog (31/03/2016 version) (original file name : dr1astellar) mstars.dat 316 121522 M-type stars catalog (31/03/2016 version) (original file name : dr1mstellar) dr1_plan.dat 103 1202 Plate information catalog (31/03/2016 version) LAMOST/* 0 1177 Individual fits spectra
See also: http://dr1.lamost.org : LAMOST DR1 Home Page Byte-by-byte Description of file: dr1.dat
Bytes Format Units Label Explanations
1- 9 A9 --- specId Unique Spectra ID 11- 29 A19 --- Target Target Designation (JHHMMSS.ss+DDMMSS.s) 31- 40 A10 "date" ObsDate Target Observation Date 42- 46 I5 d LMJD Local Modified Julian Day 48- 67 A20 --- PlanId Plan Name 69- 70 I02 --- spId Spectrograph ID 72- 74 I03 --- FiberId Fiber ID 76- 89 F14.10 deg RAdeg Right Ascension (J2000) 91-103 F13.10 deg DEdeg Declination (J2000) 105-112 F8.2 --- snru ?=-9999 Signal Noise Ratio of u filter 114-121 F8.2 --- snrg ?=-9999 Signal Noise Ratio of g filter 123-130 F8.2 --- snrr ?=-9999 Signal Noise Ratio of r filter 132-139 F8.2 --- snri ?=-9999 Signal Noise Ratio of i filter 141-148 F8.2 --- snrz ?=-9999 Signal Noise Ratio of z filter 150-159 A10 --- objType Object Type 161-167 A7 ---- Class Spectra Type 169-180 A12 --- SubClass Stellar Sub-Class 182-191 A10 --- magType Target Magnitude Type 193-197 F5.2 mag mag1 ?=99 Magnitude in Band 1 of magType 199-203 F5.2 mag mag2 ?=99 Magnitude in Band 2 of magType 205-209 F5.2 mag mag3 ?=99 Magnitude in Band 3 of magType 211-215 F5.2 mag mag4 ?=99 Magnitude in Band 4 of magType 217-221 F5.2 mag mag5 ?=99 Magnitude in Band 5 of magType 223-227 F5.2 mag mag6 ?=99 Magnitude in Band 6 of magType 229-233 F5.2 mag mag7 ?=99 Magnitude in Band 7 of magType 235-244 A10 --- tsource Organization or person who submits input catalog 246-250 A5 --- FiberType Fiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead) 252-269 A18 --- tfrom Input catalog submitted by an organization or a person determined by the tsource 271-301 A31 --- tInfo Target ID from SDSS, UCAC4, PANSTAR and other catalogue 303-316 F14.8 km/s HRV ? Heliocentric Radial Velocity 318-331 F14.8 --- z ? Redshift 333-343 F11.8 --- e_z []? Redshift uncertainty
Byte-by-byte Description of file: fgkstars.dat
Bytes Format Units Label Explanations
1- 9 A9 --- specId Unique Spectra ID 11- 29 A19 --- Target Target Designation (JHHMMSS.ss+DDMMSS.s) 31- 40 A10 "date" ObsDate Target Observation Date 42- 46 I5 d LMJD Local Modified Julian Day 48- 67 A20 --- PlanId Plan Name 69- 70 I2 --- spId Spectrograph ID 72- 74 I3 --- FiberId Fiber ID 76- 89 F14.10 deg RAdeg Right Ascension (J2000) 91-103 F13.10 deg DEdeg Declination (J2000) 105-112 F8.2 --- snru ?=-9999 Signal Noise Ratio of u filter 114-121 F8.2 --- snrg ?=-9999 Signal Noise Ratio of g filter 123-130 F8.2 --- snrr ?=-9999 Signal Noise Ratio of r filter 132-139 F8.2 --- snri ?=-9999 Signal Noise Ratio of i filter 141-148 F8.2 --- snrz ?=-9999 Signal Noise Ratio of z filter 150-159 A10 --- objType Object Type 161-164 A4 --- Class Stellar Class 166-170 A5 --- SubClass Stellar Sub-Class 172-181 A10 --- magType Target Magnitude Type 183-187 F5.2 mag mag1 ?=99 Magnitude in band 1 of magType 189-193 F5.2 mag mag2 ?=99 Magnitude in band 2 of magType 195-199 F5.2 mag mag3 ?=99 Magnitude in band 3 of magType 201-205 F5.2 mag mag4 ?=99 Magnitude in band 4 of magType 207-211 F5.2 mag mag5 ?=99 Magnitude in band 5 of magType 213-217 F5.2 mag mag6 ?=99 Magnitude in band 6 of magType 219-223 F5.2 mag mag7 ?=99 Magnitude in band 7 of magType 225-234 A10 --- tsource Organization or person who submits input catalog 236-240 A5 --- FiberType Fiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead) 242-259 A18 --- tfrom Input catalog submitted by an organization or a person determined by the tsource 261-291 A31 --- tInfo Target ID from SDSS, UCAC4, PANSTAR and other catalogue 293-299 F7.2 km/s HRV ? Heliocentric Radial Velocity 301-305 F5.2 km/s e_HRV ? Uncertainty of Heliocentric Radial Velocity 307-312 F6.3 [cm/s2] logg Surface gravity 314-318 F5.3 [cm/s2] e_logg Uncertainty of Surface gravity 320-327 F8.2 K Teff Effective temperature 329-335 F7.2 K e_Teff Uncertainty of Effective temperature 337-342 F6.3 [-] [Fe/H] Metallicity 344-349 F6.3 [-] e_[Fe/H] Uncertainty of Metallicity
Byte-by-byte Description of file: astars.dat
Bytes Format Units Label Explanations
1- 9 A9 --- specId Unique Spectra ID 11- 29 A19 --- Target Target Designation (JHHMMSS.ss+DDMMSS.s) 31- 40 A10 "date" ObsDate Target Observation Date 42- 46 I5 d LMJD Local Modified Julian Day 48- 67 A20 --- PlanId Plan Name 69- 70 I2 --- spId Spectrograph ID 72- 74 I3 --- FiberId Fiber ID 76- 89 F14.10 deg RAdeg Right Ascension (J2000) 91-103 F13.10 deg DEdeg Declination (J2000) 105-112 F8.2 --- snru ? Signal Noise Ratio of u filter 114-121 F8.2 --- snrg ? Signal Noise Ratio of g filter 123-130 F8.2 --- snrr ? Signal Noise Ratio of r filter 132-139 F8.2 --- snri ? Signal Noise Ratio of i filter 141-148 F8.2 --- snrz ? Signal Noise Ratio of z filter 150-159 A10 --- objType Object Type 161-164 A4 --- Class Stellar Class 166-170 A5 --- SubClass Stellar Sub-Class 172-181 A10 --- magType Target Magnitude Type 183-187 F5.2 mag mag1 ?=99 Magnitude in band 1 of magType 189-193 F5.2 mag mag2 ?=99 Magnitude in band 2 of magType 195-199 F5.2 mag mag3 ?=99 Magnitude in band 3 of magType 201-205 F5.2 mag mag4 ?=99 Magnitude in band 4 of magType 207-211 F5.2 mag mag5 ?=99 Magnitude in band 5 of magType 213-217 F5.2 mag mag6 ?=99 Magnitude in band 6 of magType 219-223 F5.2 mag mag7 ?=99 Magnitude in band 7 of magType 225-234 A10 --- tsource Organization or person who submits input catalog 236-240 A5 --- FiberType Fiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead) 242-253 A12 --- tfrom Input catalog submitted by an organization or a person determined by the tsource 255-277 A23 --- tInfo Target ID from SDSS, UCAC4, PANSTAR and other catalogue 279-292 F14.8 km/s HRV ? Heliocentric Radial Velocity 294-310 F17.8 km/s e_HRV ? Uncertainty of Heliocentric Radial Velocity 312-324 F13.8 0.1nm HaInd Line Indice of Halpha line 326-338 F13.8 0.1nm HbInd Line Indice of Hbeta line 340-353 F14.8 0.1nm HgInd Line Indice of Hgamma line 355-368 F14.8 0.1nm HdInd Line Indice of Hdelta line 370-386 F17.8 0.1nm HaD0.2 ? Width at 20% below the local continuum of Halpha line 388-404 F17.8 0.1nm HbD0.2 ? Width at 20% below the local continuum of Hbeta line 406-422 F17.8 0.1nm HgD0.2 ? Width at 20% below the local continuum of Hgamma line 424-440 F17.8 0.1nm HdD0.2 ? Width at 20% below the local continuum of Hdelta line
Byte-by-byte Description of file: mstars.dat
Bytes Format Units Label Explanations
1- 9 A9 --- specId Unique Spectra ID 11- 29 A19 --- Target Target Designation (JHHMMSS.ss+DDMMSS.s) 31- 40 A10 "date" ObsDate Target Observation Date 42- 46 I5 d LMJD Local Modified Julian Day 48- 67 A20 --- PlanId Plan Name 69- 70 I2 --- spId Spectrograph ID 72- 74 I3 --- FiberId Fiber ID 76- 89 F14.10 deg RAdeg Right Ascension (J2000) 91-103 F13.10 deg DEdeg Declination (J2000) 105-109 F5.2 --- snru ? Signal Noise Ratio of u filter 111-118 F8.2 --- snrg ? Signal Noise Ratio of g filter 120-127 F8.2 --- snrr ? Signal Noise Ratio of r filter 129-136 F8.2 --- snri ? Signal Noise Ratio of i filter 138-145 F8.2 --- snrz ? Signal Noise Ratio of z filter 147-156 A10 --- objType Object Type 158-161 A4 --- Class Stellar Class 163-164 A2 --- SubClass Stellar Sub-Class 166-175 A10 --- magType Target Magnitude Type 177-181 F5.2 mag mag1 ?=99 Magnitude in band 1 of magType 183-187 F5.2 mag mag2 ?=99 Magnitude in band 2 of magType 189-193 F5.2 mag mag3 ?=99 Magnitude in band 3 of magType 195-199 F5.2 mag mag4 ?=99 Magnitude in band 4 of magType 201-205 F5.2 mag mag5 ?=99 Magnitude in band 5 of magType 207-211 F5.2 mag mag6 ?=99 Magnitude in band 6 of magType 213-217 F5.2 mag mag7 ?=99 Magnitude in band 7 of magType 219-228 A10 --- tsource Organization or person who submits input catalog 230-234 A5 --- FiberType Fiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead) 236-253 A18 --- tfrom Input catalog submitted by an organization or a person determined by the tsource 255-277 A23 --- tInfo Target ID from SDSS, UCAC4, PANSTAR and other catalogue 279-292 F14.8 km/s RV ? Heliocentric Radial Velocity 294-310 F17.8 km/s e_RV ? Uncertainty of Heliocentric Radial Velocity 312-316 I5 --- MA [0/1]?=-9999 Magnetic Activity, 1 for yes
Byte-by-byte Description of file: dr1_plan.dat
Bytes Format Units Label Explanations
1- 4 I4 --- PlateId Plate ID 6- 15 A10 "date" ObsDate Target Observation Date 17- 36 A20 --- PlanId Plan Name 38- 48 F11.7 deg RAdeg Right Ascension of center star (J2000) 50- 59 F10.7 deg DEdeg Declination of center star (J2000) 61- 64 F4.2 mag mag1 Magnitude of the first exposure 66- 69 F4.2 --- Seeing Seeing of the first exposure 71- 94 A24 s ExpTime The total exposure time of n time exposures 96-103 I8 min LMJM Local Modified Julian Minute at the start time of each plate
History: * 23-Feb-2016: Copied at http://dr1.lamost.org/ with technical support of Chinese Virtual Observatory (China-VO) * 31-Mar-2016: Final version copied at http://dr1.lamost.org/sas/catalog/final/ with technical support of Chinese Virtual Observatory (China-VO)
(End) Patricia Vannier [CDS] 25-Nov-2015
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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