Data quality control system and long-term performance monitor of the LHAASO-KM2A - Université de Paris - Faculté des Sciences
Journal Articles Astropart.Phys. Year : 2025

Data quality control system and long-term performance monitor of the LHAASO-KM2A

Zhen Cao , F Aharonian , M Axikegu , Y.X Bai , Y.W Bao , D Bastieri , X.J Bi , Y.J Bi , W Bian , A.V Bukevich , Q Cao , W.Y Cao , Zhe Cao , J Chang , J.F Chang , A.M Chen , E.S Chen , H.X Chen , Liang Chen , Lin Chen , Long Chen , M.J Chen , M.L Chen , Q.H Chen , S Chen , S.H Chen , S.Z Chen , T.L Chen , Y Chen , N Cheng , Y.D Cheng , M.Y Cui , S.W Cui , X.H Cui , Y.D Cui , B.Z Dai , H.L Dai , Z.G Dai , M Danzengluobu , X.Q Dong , K.K Duan , J.H Fan , Y.Z Fan , J Fang , J.H Fang , K Fang , C.F Feng , H Feng , L Feng , S.H Feng , X.T Feng , Y Feng , Y.L Feng , S Gabici (1) , B Gao , C.D Gao , Q Gao , W Gao , W.K Gao , M.M Ge , L.S Geng , G Giacinti , G.H Gong , Q.B Gou , M.H Gu , F.L Guo , X.L Guo , Y.Q Guo , Y.Y Guo , Y.A Han , M Hasan , H.H He , H.N He , J.Y He , Y He , Y.K Hor , B.W Hou , C Hou , X Hou , H.B Hu , Q Hu , S.C Hu , D.H Huang , T.Q Huang , W.J Huang , X.T Huang , X.Y Huang , Y Huang , X.L Ji , H.Y Jia , K Jia , K Jiang , X.W Jiang , Z.J Jiang , M Jin , M.M Kang , I Karpikov , D Kuleshov , K Kurinov , B.B Li , C.M Li , Cheng Li , Cong Li , D Li , F Li , H.B Li , H.C Li , Jian Li , Jie Li , K Li , S.D Li , W.L Li , W.L Li , X.R Li , Xin Li , Y.Z Li , Zhe Li , Zhuo Li , E.W Liang , Y.F Liang , S.J Lin , B Liu , C Liu , D Liu , D.B Liu , H Liu , H.D Liu , J Liu , J.L Liu , M.Y Liu , R.Y Liu , S.M Liu , W Liu , Y Liu , Y.N Liu , Q Luo , Y Luo , H.K Lv , B.Q Ma , L.L Ma , X.H Ma , J.R Mao , Z Min , W Mitthumsiri , H.J Mu , Y.C Nan , A Neronov (1) , L.J Ou , P Pattarakijwanich , Z.Y Pei , J.C Qi , M.Y Qi , B.Q Qiao , J.J Qin , A Raza , D Ruffolo , A Sáiz , M Saeed , D Semikoz (1) , L Shao , O Shchegolev , X.D Sheng , F.W Shu , H.C Song , Yu.V Stenkin , V Stepanov , Y Su , D.X Sun , Q.N Sun , X.N Sun , Z.B Sun , J Takata , P.H.T Tam , Q.W Tang , R Tang , Z.B Tang , W.W Tian , C Wang , C.B Wang , G.W Wang , H.G Wang , H.H Wang , J.C Wang , Kai Wang , Kai Wang , L.P Wang , L.Y Wang , P.H Wang , R Wang , W Wang , X.G Wang , X.Y Wang , Y Wang , Y.D Wang , Y.J Wang , Z.H Wang , Z.X Wang , Zhen Wang , Zheng Wang , D.M Wei , J.J Wei , Y.J Wei , T Wen , C.Y Wu , H.R Wu , Q.W Wu , S Wu , X.F Wu , Y.S Wu , S.Q Xi , J Xia , G.M Xiang , D.X Xiao , G Xiao , Y.L Xin , Y Xing , D.R Xiong , Z Xiong , D.L Xu , R.F Xu , R.X Xu , W.L Xu , L Xue , D.H Yan , J.Z Yan , T Yan , C.W Yang , C.Y Yang , F Yang , F.F Yang , L.L Yang , M.J Yang , R.Z Yang , W.X Yang , Y.H Yao , Z.G Yao , L.Q Yin , N Yin , X.H You , Z.Y You , Y.H Yu , Q Yuan , H Yue , H.D Zeng , T.X Zeng , W Zeng , M Zha , B.B Zhang , F Zhang , H Zhang , H.M Zhang , H.Y Zhang , J.L Zhang , Li Zhang , P.F Zhang , P.P Zhang , R Zhang , S.B Zhang , S.R Zhang , S.S Zhang , X Zhang , X.P Zhang , Y.F Zhang , Yi Zhang , Yong Zhang , B Zhao , J Zhao , L Zhao , L.Z Zhao , S.P Zhao , X.H Zhao , F Zheng , W.J Zhong , B Zhou , H Zhou , J.N Zhou , M Zhou , P Zhou , R Zhou , X.X Zhou , X.X Zhou , B.Y Zhu , C.G Zhu , F.R Zhu , H Zhu , K.J Zhu , Y.C Zou , X Zuo
Zhen Cao
  • Function : Author
F Aharonian
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M Axikegu
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Y.X Bai
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Y.W Bao
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D Bastieri
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X.J Bi
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Y.J Bi
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W Bian
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A.V Bukevich
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Q Cao
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W.Y Cao
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Zhe Cao
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J Chang
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J.F Chang
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A.M Chen
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E.S Chen
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H.X Chen
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Liang Chen
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Lin Chen
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Long Chen
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M.J Chen
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M.L Chen
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Q.H Chen
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S Chen
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S.H Chen
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S.Z Chen
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T.L Chen
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Y Chen
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N Cheng
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Y.D Cheng
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M.Y Cui
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S.W Cui
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X.H Cui
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Y.D Cui
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B.Z Dai
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H.L Dai
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Z.G Dai
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M Danzengluobu
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X.Q Dong
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K.K Duan
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J.H Fan
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Y.Z Fan
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J Fang
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J.H Fang
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K Fang
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C.F Feng
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H Feng
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L Feng
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S.H Feng
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X.T Feng
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Y Feng
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Y.L Feng
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B Gao
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C.D Gao
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Q Gao
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W Gao
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W.K Gao
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M.M Ge
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L.S Geng
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G Giacinti
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G.H Gong
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Q.B Gou
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M.H Gu
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F.L Guo
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X.L Guo
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Y.Q Guo
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Y.Y Guo
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Y.A Han
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M Hasan
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H.H He
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H.N He
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J.Y He
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Y He
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Y.K Hor
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B.W Hou
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C Hou
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X Hou
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H.B Hu
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Q Hu
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S.C Hu
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D.H Huang
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T.Q Huang
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W.J Huang
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X.T Huang
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X.Y Huang
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Y Huang
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X.L Ji
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H.Y Jia
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K Jia
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K Jiang
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X.W Jiang
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Z.J Jiang
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M Jin
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M.M Kang
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I Karpikov
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D Kuleshov
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K Kurinov
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B.B Li
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C.M Li
  • Function : Author
Cheng Li
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Cong Li
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D Li
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F Li
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H.B Li
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H.C Li
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Jian Li
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Jie Li
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K Li
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S.D Li
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W.L Li
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W.L Li
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X.R Li
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Xin Li
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Y.Z Li
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Zhe Li
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Zhuo Li
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E.W Liang
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Y.F Liang
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S.J Lin
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B Liu
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C Liu
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D Liu
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D.B Liu
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H Liu
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H.D Liu
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J Liu
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J.L Liu
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M.Y Liu
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R.Y Liu
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S.M Liu
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W Liu
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Y Liu
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Y.N Liu
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Q Luo
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Y Luo
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H.K Lv
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B.Q Ma
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L.L Ma
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X.H Ma
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J.R Mao
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Z Min
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W Mitthumsiri
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H.J Mu
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Y.C Nan
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L.J Ou
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P Pattarakijwanich
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Z.Y Pei
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J.C Qi
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M.Y Qi
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B.Q Qiao
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J.J Qin
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A Raza
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D Ruffolo
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A Sáiz
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M Saeed
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L Shao
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O Shchegolev
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X.D Sheng
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F.W Shu
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H.C Song
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Yu.V Stenkin
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V Stepanov
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Y Su
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D.X Sun
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Q.N Sun
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X.N Sun
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Z.B Sun
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J Takata
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P.H.T Tam
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Q.W Tang
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R Tang
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Z.B Tang
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W.W Tian
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C Wang
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C.B Wang
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G.W Wang
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H.G Wang
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H.H Wang
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J.C Wang
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Kai Wang
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Kai Wang
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L.P Wang
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L.Y Wang
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P.H Wang
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R Wang
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W Wang
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X.G Wang
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X.Y Wang
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Y Wang
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Y.D Wang
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Y.J Wang
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Z.H Wang
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Z.X Wang
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Zhen Wang
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Zheng Wang
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D.M Wei
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J.J Wei
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Y.J Wei
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T Wen
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C.Y Wu
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H.R Wu
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Q.W Wu
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S Wu
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X.F Wu
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Y.S Wu
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S.Q Xi
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J Xia
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G.M Xiang
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D.X Xiao
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G Xiao
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Y.L Xin
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Y Xing
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D.R Xiong
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Z Xiong
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D.L Xu
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R.F Xu
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R.X Xu
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W.L Xu
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L Xue
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D.H Yan
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J.Z Yan
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T Yan
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C.W Yang
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C.Y Yang
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F Yang
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F.F Yang
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L.L Yang
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M.J Yang
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R.Z Yang
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W.X Yang
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Y.H Yao
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Z.G Yao
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L.Q Yin
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N Yin
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X.H You
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Z.Y You
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Y.H Yu
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Q Yuan
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H Yue
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H.D Zeng
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T.X Zeng
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W Zeng
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M Zha
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B.B Zhang
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F Zhang
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H Zhang
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H.M Zhang
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H.Y Zhang
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J.L Zhang
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Li Zhang
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P.F Zhang
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P.P Zhang
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R Zhang
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S.B Zhang
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S.R Zhang
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S.S Zhang
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X Zhang
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X.P Zhang
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Y.F Zhang
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Yi Zhang
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Yong Zhang
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B Zhao
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J Zhao
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L Zhao
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L.Z Zhao
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S.P Zhao
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X.H Zhao
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F Zheng
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W.J Zhong
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B Zhou
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H Zhou
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J.N Zhou
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M Zhou
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P Zhou
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R Zhou
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X.X Zhou
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X.X Zhou
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B.Y Zhu
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C.G Zhu
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F.R Zhu
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H Zhu
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K.J Zhu
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Y.C Zou
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X Zuo
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Abstract

The KM2A is the largest sub-array of the Large High Altitude Air Shower Observatory (LHAASO). It consists of 5216 electromagnetic particle detectors (EDs) and 1188 muon detectors (MDs). The data recorded by the EDs and MDs are used to reconstruct primary information of cosmic ray and gamma-ray showers. This information is used for physical analysis in gamma-ray astronomy and cosmic ray physics. To ensure the reliability of the LHAASO-KM2A data, a three-level quality control system has been established. It is used to monitor the status of detector units, stability of reconstructed parameters and the performance of the array based on observations of the Crab Nebula and Moon shadow. This paper will introduce the control system and its application on the LHAASO-KM2A data collected from August 2021 to July 2023. During this period, the pointing and angular resolution of the array were stable. From the observations of the Moon shadow and Crab Nebula, the results achieved using the two methods are consistent with each other. According to the observation of the Crab Nebula at energies from 25 TeV to 100 TeV, the time averaged pointing errors are estimated to be $-0.003^{\circ} \pm 0.005^{\circ}$ and $0.001^{\circ} \pm 0.006^{\circ}$ in the R.A. and Dec directions, respectively.
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Dates and versions

hal-04592053 , version 1 (10-09-2024)

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Zhen Cao, F Aharonian, M Axikegu, Y.X Bai, Y.W Bao, et al.. Data quality control system and long-term performance monitor of the LHAASO-KM2A. Astropart.Phys., 2025, 164, pp.103029. ⟨10.1016/j.astropartphys.2024.103029⟩. ⟨hal-04592053⟩
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