ASTROSAT CZTI

Data Quality Report

Orbit 05070

Creation date: 2024-06-27T14:50:54.554787
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_218T04_9000000640_05070cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05070cztM0_level2_quad_clean.evt
Size (bytes)790,865,28064,817,280
Size754.2 MB 61.8 MB
Events in quadrant A3,817,867376,558
Events in quadrant B3,747,474373,575
Events in quadrant C3,542,518368,688
Events in quadrant D12,327,184312,498

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166864
B0162985
C0159217
D04195120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76232323.043421%
B76221872.453424%
C76211582.073219%
D7621344845.243406%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7778 7627 43 43 0.55% 0.56%
B 7778 7627 3 3 0.04% 0.04%
C 7778 7626 0 0 0.00% 0.00%
D 7778 7627 3161 3161 40.64% 41.44%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 174 267129 1422.73 909 888 187.1
A 0 50 29894 155.0 909 888 187.1
A 13 251 22571 115.87 909 888 187.1
B 0 219 89500 495.62 917 894 178.8
B 15 204 73258 404.77 917 894 178.8
B 12 111 15319 80.69 917 894 178.8
C 1 16 102798 498.56 878 879 204.4
C 13 61 7273 31.28 878 879 204.4
C 9 54 7092 30.39 878 879 204.4
D 7 237 8549492 46513.91 742 718 183.8
D 13 235 262669 1425.28 742 718 183.8
D 2 136 219461 1190.18 742 718 183.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter