ASTROSAT CZTI

Data Quality Report

Orbit 19483

Creation date: 2024-06-27T18:03:19.334408
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/AS1A05_229T02_9000002890_19483cztM0_level2.evt modeM0/AS1A05_229T02_9000002890_19483cztM0_level2_quad_clean.evt
Size (bytes)539,530,56072,524,160
Size514.5 MB 69.2 MB
Events in quadrant A3,505,114450,462
Events in quadrant B3,824,680451,940
Events in quadrant C3,781,246430,767
Events in quadrant D4,793,612414,823

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142422
B0153272
C0153912
D0183922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64141081.683817%
B64141742.712816%
C64141362.120362%
D64143555.534768%

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 7714 6414 9 9 0.12% 0.14%
B 7714 6414 54 54 0.70% 0.84%
C 7714 6414 0 0 0.00% 0.00%
D 7714 6414 244 244 3.16% 3.80%

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 5 16 40597 224.25 894 878 177.1
A 11 29 12229 64.09 894 878 177.1
A 0 226 7994 40.18 894 878 177.1
B 3 112 184616 1122.62 876 857 163.7
B 7 220 115612 701.06 876 857 163.7
B 0 190 21122 123.8 876 857 163.7
C 3 233 243331 1253.38 842 852 193.5
C 14 238 135046 693.65 842 852 193.5
C 9 221 115410 592.15 842 852 193.5
D 7 238 520921 2518.77 854 832 206.5
D 5 222 445259 2152.34 854 832 206.5
D 1 52 289693 1398.94 854 832 206.5

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