ASTROSAT CZTI

Data Quality Report

Orbit 31297

Creation date: 2024-06-27T20:26:19.191565
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/AS1A10_058T08_9000004532_31297cztM0_level2.evt modeM0/AS1A10_058T08_9000004532_31297cztM0_level2_quad_clean.evt
Size (bytes)395,265,60049,403,520
Size377.0 MB 47.1 MB
Events in quadrant A1,952,587325,301
Events in quadrant B3,471,989307,583
Events in quadrant C4,105,728292,201
Events in quadrant D2,189,605309,548

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079071
B0127811
C0148311
D087411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36861123.038524%
B368638610.472056%
C368670319.072165%
D36861363.689636%

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 4761 3687 0 0 0.00% 0.00%
B 4761 3687 130 130 2.73% 3.53%
C 4761 3687 159 159 3.34% 4.31%
D 4761 3687 18 18 0.38% 0.49%

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 13 254 7156 64.87 505 496 102.7
A 3 137 5181 45.64 505 496 102.7
A 0 226 4171 35.8 505 496 102.7
B 6 159 960172 10170.84 480 468 94.4
B 4 80 576009 6099.52 480 468 94.4
B 0 230 20898 216.51 480 468 94.4
C 3 233 2177459 20301.94 452 454 107.2
C 14 238 85322 791.45 452 454 107.2
C 0 10 53096 490.92 452 454 107.2
D 8 195 220832 1856.51 488 475 118.7
D 2 250 82980 695.11 488 475 118.7
D 2 153 16361 133.84 488 475 118.7

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