ASTROSAT CZTI

Data Quality Report

Orbit 37800

Creation date: 2024-06-27T21:44:38.028299
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_103T06_9000005348_37800cztM0_level2.evt modeM0/AS1A10_103T06_9000005348_37800cztM0_level2_quad_clean.evt
Size (bytes)467,242,56068,503,680
Size445.6 MB 65.3 MB
Events in quadrant A3,132,000427,677
Events in quadrant B3,417,436424,161
Events in quadrant C2,966,535431,253
Events in quadrant D4,244,932389,623

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128723
B0138392
C0123732
D0164952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5733390.680272%
B57331823.174603%
C5733350.610501%
D57334497.831851%

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 7166 5734 23 23 0.32% 0.40%
B 7166 5734 145 145 2.02% 2.53%
C 7166 5734 30 30 0.42% 0.52%
D 7166 5734 377 377 5.26% 6.57%

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 10 83 351189 2669.36 648 635 131.3
A 15 222 137769 1044.23 648 635 131.3
A 9 143 105363 797.47 648 635 131.3
B 5 172 577130 4662.48 641 625 123.6
B 0 229 149117 1200.93 641 625 123.6
B 4 232 47578 379.73 641 625 123.6
C 15 214 259637 1739.87 632 637 148.9
C 0 10 138425 925.61 632 637 148.9
C 0 207 67109 446.53 632 637 148.9
D 13 249 1187364 7735.53 615 597 153.4
D 1 52 234770 1526.37 615 597 153.4
D 2 153 52841 340.53 615 597 153.4

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