ASTROSAT CZTI

Data Quality Report

Orbit 05425

Creation date: 2024-06-27T14:55:02.445110
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_132T01_9000000686_05425cztM0_level2.evt modeM0/AS1G05_132T01_9000000686_05425cztM0_level2_quad_clean.evt
Size (bytes)427,835,52071,112,960
Size408.0 MB 67.8 MB
Events in quadrant A2,982,108438,995
Events in quadrant B3,149,050439,494
Events in quadrant C2,634,106439,561
Events in quadrant D3,782,577414,785

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130432
B0134051
C0122531
D0152321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60211051.743896%
B6021791.312074%
C6021270.448430%
D60211422.358412%

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 7176 6022 34 34 0.47% 0.56%
B 7176 6022 34 34 0.47% 0.56%
C 7176 6022 0 0 0.00% 0.00%
D 7176 6022 119 119 1.66% 1.98%

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 0 50 257781 1795.08 700 686 143.2
A 15 174 19823 133.62 700 686 143.2
A 0 226 7236 45.73 700 686 143.2
B 0 219 142812 1048.21 706 691 135.6
B 15 204 126849 930.47 706 691 135.6
B 4 81 93836 686.99 706 691 135.6
C 4 238 5977 34.08 671 674 155.6
C 13 61 5611 31.73 671 674 155.6
C 14 67 4302 23.32 671 674 155.6
D 7 203 663727 4002.83 669 647 165.7
D 8 195 173381 1042.75 669 647 165.7
D 2 152 172561 1037.8 669 647 165.7

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