ASTROSAT CZTI

Data Quality Report

Orbit 05831

Creation date: 2024-06-27T14:59:38.724387
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/AS1G06_052T01_9000000754_05831cztM0_level2.evt modeM0/AS1G06_052T01_9000000754_05831cztM0_level2_quad_clean.evt
Size (bytes)441,961,920103,455,360
Size421.5 MB 98.7 MB
Events in quadrant A3,072,389676,537
Events in quadrant B3,185,192679,904
Events in quadrant C3,027,874672,639
Events in quadrant D3,648,814642,143

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139113
B0140242
C0137922
D0156262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6627550.829938%
B6627640.965746%
C6627440.663951%
D66271291.946582%

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 8952 6629 0 0 0.00% 0.00%
B 8952 6629 0 0 0.00% 0.00%
C 8952 6629 1 1 0.01% 0.02%
D 8952 6629 56 56 0.63% 0.84%

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 15 223 10506 60.56 793 776 160.6
A 8 15 8642 48.96 793 776 160.6
A 0 226 7808 43.77 793 776 160.6
B 15 204 55244 361.44 795 776 150.7
B 4 80 28383 183.19 795 776 150.7
B 12 111 13390 83.7 795 776 150.7
C 1 16 19865 107.82 767 772 177.1
C 14 67 8081 41.27 767 772 177.1
C 13 61 6313 31.29 767 772 177.1
D 2 152 457723 2449.28 760 735 186.6
D 11 241 146768 782.68 760 735 186.6
D 1 239 78609 417.37 760 735 186.6

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