ASTROSAT CZTI

Data Quality Report

Orbit 09048

Creation date: 2024-06-27T15:40:34.508852
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_046T01_9000001260_09048cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09048cztM0_level2_quad_clean.evt
Size (bytes)376,983,36066,960,000
Size359.5 MB 63.9 MB
Events in quadrant A3,038,333414,710
Events in quadrant B2,897,281410,776
Events in quadrant C2,474,164420,619
Events in quadrant D2,639,435404,214

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013320
B013426
C013424
D01337

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206
B0206
C0207
D0218

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157313209
B0152783227
C0135882488
D0145113046

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53211262.367976%
B53612264.215631%
C5418911.679587%
D53331011.893868%

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 7589 6027 3 3 0.04% 0.05%
B 7589 6055 93 93 1.23% 1.54%
C 7589 6077 0 0 0.00% 0.00%
D 7589 6046 10 10 0.13% 0.17%

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 5 236532 1831.99 638 625 128.8
A 1 162 126660 978.75 638 625 128.8
A 5 16 63142 485.49 638 625 128.8
B 10 16 350825 2913.95 639 625 120.2
B 6 51 25533 207.25 639 625 120.2
B 12 111 12900 102.14 639 625 120.2
C 13 61 4876 29.22 634 635 145.2
C 12 4 1867 8.49 634 635 145.2
C 3 202 1538 6.22 634 635 145.2
D 1 52 135672 892.72 624 607 151.3
D 12 233 52429 342.52 624 607 151.3
D 2 14 31570 204.65 624 607 151.3

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