Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 11 v2.0
Low Resolution
Observed Plates: 6,283
Total Spectra: 11,931,197
Star: 11,570,626
Galaxy: 277,566
QSO: 83,005
AFGK Stellar Parameters: 7,898,024
M Giants,Dwarfs and Subdwarfs: 926,048
Line indices of A Type Stars: 661,420
WD Star Catalog: 17,501
CV Star Catalog: 572
Galaxy Population Synthesis Catalog: 28,780
Qso Emission line Feature Catalog: 19,137
| Observed Plates |
Total Spectra | Star | Galaxy | QSO | AFGK Stellar Parameters |
M Giants,Dwarfs and Subdwarfs |
Line indices of A Type Stars |
WD Star Catalog |
CV Star Catalog |
Galaxy Population Synthesis Catalog |
Qso Emission line Feature Catalog |
|
| Pilot survey
(20111024-20120617)
|
404 | 863,290 | 852,440 | 9,295 | 1,555 | 417,412 | 84,911 | 62,396 | 1,531 | 34 | 12 | 693 |
| First year survey
(20120928-20130603)
|
811 | 1,556,487 | 1,536,452 | 13,783 | 6,252 | 915,078 | 65,546 | 76,889 | 1,428 | 58 | 159 | 2,325 |
| Second year survey
(20130910-20140603)
|
732 | 1,536,249 | 1,498,250 | 31,588 | 6,411 | 1,113,825 | 80,379 | 74,162 | 1,275 | 48 | 2,437 | 2,822 |
| Third year survey
(20140910-20150530)
|
738 | 1,567,912 | 1,530,748 | 27,238 | 9,926 | 1,093,273 | 108,519 | 83,967 | 1,818 | 58 | 2,578 | 2,304 |
| Forth year survey
(20150912-20160602)
|
776 | 1,563,927 | 1,507,407 | 41,528 | 14,992 | 1,069,608 | 107,170 | 94,587 | 2,303 | 97 | 4,428 | 2,069 |
| Fifth year survey
(20160909-20170616)
|
693 | 1,227,584 | 1,176,131 | 36,506 | 14,947 | 802,473 | 105,277 | 75,139 | 2,594 | 65 | 4,998 | 5,100 |
| Sixth year survey
(20170919-20180518)
|
418 | 790,992 | 762,560 | 20,684 | 7,748 | 532,246 | 77,698 | 44,239 | 1,723 | 62 | 2,653 | 1,209 |
| Seventh year survey
(20181005-20190608)
|
349 | 605,255 | 579,355 | 21,758 | 4,142 | 407,885 | 70,349 | 36,136 | 1,762 | 28 | 2,418 | 470 |
| Eighth year survey
(20191023-20200527)
|
285 | 514,513 | 487,965 | 21,206 | 5,342 | 351,394 | 60,252 | 26,774 | 1,080 | 41 | 1,951 | 737 |
| Ninth year survey
(20200918-20210612)
|
326 | 572,195 | 551,167 | 16,861 | 4,167 | 394,316 | 62,596 | 29,325 | 768 | 32 | 2,047 | 496 |
| Tenth year survey
(20201029-20220602)
|
388 | 634,712 | 607,288 | 22,940 | 4,484 | 444,425 | 62,726 | 28,149 | 767 | 31 | 3,559 | 379 |
| Eleventh year survey
(20221007-20230615)
|
363 | 498,081 | 480,863 | 14,179 | 3,039 | 356,089 | 40,625 | 29,657 | 452 | 18 | 1,540 | 533 |
Medium Resolution
| Medium-resolution non time-domain data | Medium-resolution time-domain data | Total | |
| Total spectra | 2,737,394 | 10,418,656 | 13,156,050 |
| Star parameter | 1,301,828 | 1,292,242 | 2,594,070 |
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.
