Large Sky Area Multi-Object Fiber Spectroscopic Telescope
DATA RELEASE 11 v1.1
Low Resolution
Observed Plates: 6,286
Total Spectra: 11,944,049
Star: 11,586,067
Galaxy: 275,3455
QSO: 82,527
AFGK Stellar Parameters: 7,802,803
M Giants,Dwarfs and Subdwarfs: 899,204
Line indices of A Type Stars: 684,444
WD Star Catalog: 15,895
CV Star Catalog: 568
Galaxy Population Synthesis Catalog: 28,780
Qso Emission line Feature Catalog: 19,052
| 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 | 871,760 | 860,918 | 9,295 | 1,547 | 416,477 | 84,702 | 65,068 | 1,398 | 34 | 12 | 693 |
| First year survey
(20120928-20130603)
|
812 | 1,558,383 | 1,538,359 | 13,773 | 6,251 | 915,299 | 65,323 | 77,281 | 1,295 | 58 | 159 | 2,325 |
| Second year survey
(20130910-20140603)
|
732 | 1,530,435 | 1,492,523 | 31,516 | 6,396 | 1,108,483 | 78,280 | 74,806 | 1,152 | 48 | 2,437 | 2,822 |
| Third year survey
(20140910-20150530)
|
738 | 1,568,107 | 1,531,079 | 27,125 | 9,903 | 1,084,274 | 106,434 | 86,476 | 1,646 | 57 | 2,578 | 2,304 |
| Forth year survey
(20150912-20160602)
|
776 | 1,566,779 | 1,510,545 | 41,315 | 14,919 | 1,062,320 | 104,312 | 97,221 | 2,106 | 95 | 4,428 | 2,069 |
| Fifth year survey
(20160909-20170616)
|
693 | 1,221,126 | 1,170,812 | 35,582 | 14,732 | 778,003 | 98,120 | 80,365 | 2,367 | 64 | 4,998 | 5,018 |
| Sixth year survey
(20170919-20180518)
|
418 | 796,683 | 768,335 | 20,612 | 7,736 | 520,271 | 74,806 | 49,095 | 1,599 | 62 | 2,653 | 1,209 |
| Seventh year survey
(20181005-20190608)
|
349 | 611,091 | 585,345 | 21,633 | 4,113 | 397,917 | 67,330 | 40,033 | 1,455 | 28 | 2,418 | 470 |
| Eighth year survey
(20191023-20200527)
|
285 | 515,844 | 489,392 | 21,139 | 5,313 | 344,627 | 58,123 | 27,104 | 969 | 41 | 1,951 | 737 |
| Ninth year survey
(20200918-20210612)
|
326 | 569,456 | 548,659 | 16,661 | 4,136 | 384,396 | 60,858 | 28,964 | 703 | 32 | 2,047 | 495 |
| Tenth year survey
(20201029-20220602)
|
390 | 631,347 | 604,172 | 22,730 | 4,445 | 438,236 | 60,697 | 28,082 | 753 | 31 | 3,559 | 377 |
| Eleventh year survey
(20221007-20230615)
|
363 | 503,038 | 485,928 | 14,074 | 3,036 | 352,500 | 40,219 | 29,949 | 452 | 18 | 1,540 | 533 |
Medium Resolution
| Medium-resolution non time-domain data | Medium-resolution time-domain data | Total | |
| Total spectra | 2,741,431 | 10,418,656 | 13,160,087 |
| Star parameter | 1,299,458 | 1,287,655 | 2,587,113 |
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.
