ASTROSAT CZTI

Data Quality Report

Orbit 28096

Creation date: 2024-06-27T19:48:00.700408
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_057T05_9000004060_28096cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28096cztM0_level2_quad_clean.evt
Size (bytes)615,795,84099,391,680
Size587.3 MB 94.8 MB
Events in quadrant A3,427,051672,332
Events in quadrant B3,310,864669,018
Events in quadrant C3,368,105633,007
Events in quadrant D8,124,588603,865

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136970
B0132240
C0134650
D0284580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6184580.937904%
B6184610.986417%
C6184851.374515%
D6184193431.274256%

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 7504 6185 0 0 0.00% 0.00%
B 7504 6184 0 0 0.00% 0.00%
C 7504 6185 0 0 0.00% 0.00%
D 7504 6185 1759 1759 23.44% 28.44%

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 0 13 76295 441.68 869 855 170.8
A 13 254 10553 56.78 869 855 170.8
A 0 226 7629 39.66 869 855 170.8
B 12 111 18345 112.42 839 818 155.9
B 11 111 16754 102.22 839 818 155.9
B 14 111 15913 96.82 839 818 155.9
C 14 238 135193 711.35 815 822 188.9
C 3 233 48411 251.93 815 822 188.9
C 15 208 10863 53.16 815 822 188.9
D 12 1 3791734 23321.14 687 671 162.6
D 1 52 865811 5322.0 687 671 162.6
D 8 195 360103 2211.09 687 671 162.6

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