Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 6 v2
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Low Resolution Statistics

Pilot survey First year survey Second year survey Third year survey Forth year survey Fifth year survey Sixth year survey
2011.10.24-2012.06.17 2012.09.28-2013.06.03 2013.09.10-2014.06.03 2014.09.10-2015.05.30 2015.09.12-2016.06.02 2016.09.09-2017.06.16 2017.09.19-2018.05.18
OBSERVED PLATES 404 812 732 738 776 693 418
TOTAL SPECTRA 958,191 1,686,673 1,636,537 1,639,996 1,702,330 1,402,996 884,614
STAR 874,456 1,591,136 1,541,618 1,549,124 1,589,188 1,274,437 811,098
STAR (SNg or i > 10) 682,038 1,392,302 1,425,674 1,439,225 1,478,998 1,151,716 749,531
GALAXY 8,762 13,247 31,060 27,047 40,382 36,592 20,180
QSO 1,530 6,261 6,460 9,825 15,050 15,259 7,783
UNKNOWN 73,443 76,029 57,399 54,000 57,710 76,708 45,553
AFGK STAR CATALOG 401,410 910,731 1,094,879 1,046,891 1,059,008 762,731 497,902
M DWARF CATALOG 87,847 68,087 82,453 105,788 108,186 105,594 77,330
A STAR CATALOG 65,668 80,285 77,647 88,136 103,281 90,707 52,412

Medium Resolution Statistics

Medium-resolution non time-domain data Medium-resolution time-domain data Total
Total spectra 506,387 860,302 1,366,689
Spectra (S/N>10) 350,954 485,894 836,848
Star parameter 276,781 85,348 362,129

Standard acknowledgement

Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences. Funding for the project has been provided by the National Development and Reform Commission. LAMOST is operated and managed by the National Astronomical Observatories, Chinese Academy of Sciences.