ASTROSAT CZTI

Data Quality Report

Orbit 45552

Creation date: 2024-06-27T23:13:32.774513
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/AS1A13_093T11_9000006108_45552cztM0_level2.fits modeM0/AS1A13_093T11_9000006108_45552cztM0_level2_quad_clean.evt
Size (bytes)569,257,920130,559,040
Size542.9 MB 124.5 MB
Events in quadrant A6,448,807872,889
Events in quadrant B3,942,003895,273
Events in quadrant C4,865,609836,465
Events in quadrant D5,182,992781,123

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252070
B0177800
C0204430
D0214150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8159510.625077%
B8160640.784314%
C81603304.044118%
D81602072.536765%

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 8159 8159 3 3 0.04% 0.04%
B 8160 8160 34 34 0.42% 0.42%
C 8160 8160 247 247 3.03% 3.03%
D 8160 8160 146 146 1.79% 1.79%

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 10 83 2865315 15308.56 902 881 187.1
A 2 79 44264 231.85 902 881 187.1
A 10 248 28355 146.83 902 881 187.1
B 15 201 271652 1512.83 907 878 179.0
B 0 189 44025 241.06 907 878 179.0
B 0 183 25215 135.97 907 878 179.0
C 12 2 1193644 5682.81 883 883 209.9
C 14 254 222123 1054.08 883 883 209.9
C 13 61 5920 24.0 883 883 209.9
D 1 52 932504 4199.77 880 853 221.8
D 12 1 127164 569.39 880 853 221.8
D 10 1 99961 446.77 880 853 221.8

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