ASTROSAT CZTI

Data Quality Report

Orbit 10288

Creation date: 2024-06-27T15:57:28.076082
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/AS1A03_072T01_9000001484_10288cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10288cztM0_level2_quad_clean.evt
Size (bytes)512,043,84063,486,720
Size488.3 MB 60.5 MB
Events in quadrant A3,148,798374,819
Events in quadrant B4,110,822378,180
Events in quadrant C3,509,265364,361
Events in quadrant D4,295,168349,011

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134883
B0163232
C0147712
D0170612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6530370.566616%
B65301191.822358%
C65301041.592649%
D65301882.879020%

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 7685 6530 1 1 0.01% 0.02%
B 7685 6530 35 35 0.46% 0.54%
C 7685 6530 42 42 0.55% 0.64%
D 7685 6530 157 157 2.04% 2.40%

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 8 15 29879 178.47 803 788 163.0
A 5 16 10818 61.53 803 788 163.0
A 3 1 9527 53.61 803 788 163.0
B 10 247 550621 3599.19 806 788 152.8
B 4 239 312512 2040.54 806 788 152.8
B 0 214 46291 297.86 806 788 152.8
C 4 254 481318 2675.32 774 779 179.6
C 14 234 8124 40.89 774 779 179.6
C 13 61 5830 28.12 774 779 179.6
D 12 233 775968 3959.11 760 742 195.8
D 2 33 172182 875.55 760 742 195.8
D 5 222 141283 717.75 760 742 195.8

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