ASTROSAT CZTI

Data Quality Report

Orbit 28481

Creation date: 2024-06-27T19:52:13.596449
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_050T06_9000004092_28481cztM0_level2.evt modeM0/AS1A10_050T06_9000004092_28481cztM0_level2_quad_clean.evt
Size (bytes)390,450,24054,060,480
Size372.4 MB 51.6 MB
Events in quadrant A2,242,344333,852
Events in quadrant B4,139,691320,505
Events in quadrant C2,351,203323,216
Events in quadrant D2,762,331319,162

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097531
B0155791
C098891
D0112981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A483720.041348%
B48374799.902832%
C4837280.578871%
D4837220.454827%

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 4837 4837 0 0 0.00% 0.00%
B 4837 4837 365 365 7.55% 7.55%
C 4837 4837 0 0 0.00% 0.00%
D 4837 4837 19 19 0.39% 0.39%

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 15 174 18309 150.76 576 563 117.7
A 13 254 6744 52.51 576 563 117.7
A 3 137 5839 44.82 576 563 117.7
B 10 245 1936769 17880.62 552 537 108.3
B 0 230 28818 261.17 552 537 108.3
B 12 111 13661 121.2 552 537 108.3
C 14 238 88783 659.83 559 562 133.7
C 7 247 76164 565.45 559 562 133.7
C 3 233 5910 40.0 559 562 133.7
D 1 52 237546 1768.5 561 548 134.0
D 13 104 202911 1510.05 561 548 134.0
D 8 195 149995 1115.19 561 548 134.0

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