ASTROSAT CZTI

Data Quality Report

Orbit 08180

Creation date: 2024-06-27T15:29:07.530712
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_036T01_9000001128_08180cztM0_level2.evt modeM0/AS1A03_036T01_9000001128_08180cztM0_level2_quad_clean.evt
Size (bytes)472,124,16091,333,440
Size450.3 MB 87.1 MB
Events in quadrant A3,025,147593,417
Events in quadrant B4,055,860555,435
Events in quadrant C2,997,609589,789
Events in quadrant D3,766,808562,687

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136702
B0165251
C0136211
D0158271

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6664430.645258%
B66644847.262905%
C6664560.840336%
D66641502.250900%

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 7549 6665 0 0 0.00% 0.00%
B 7549 6665 332 332 4.40% 4.98%
C 7549 6665 0 0 0.00% 0.00%
D 7549 6665 54 54 0.72% 0.81%

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 21089 127.54 778 760 159.4
A 0 226 7466 42.07 778 760 159.4
A 12 194 7188 40.33 778 760 159.4
B 0 213 944739 6760.41 743 725 139.6
B 4 81 136738 974.04 743 725 139.6
B 10 16 32268 225.89 743 725 139.6
C 1 3 6296 30.93 767 769 178.7
C 13 61 5785 28.07 767 769 178.7
C 3 202 1936 6.53 767 769 178.7
D 1 52 451168 2420.83 759 737 186.1
D 12 227 167797 897.86 759 737 186.1
D 12 233 101283 540.38 759 737 186.1

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