ASTROSAT CZTI

Data Quality Report

Orbit 29003

Creation date: 2024-06-27T19:59:03.908797
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_103T04_9000004158_29003cztM0_level2.evt modeM0/AS1A10_103T04_9000004158_29003cztM0_level2_quad_clean.evt
Size (bytes)642,104,64098,337,600
Size612.4 MB 93.8 MB
Events in quadrant A3,221,984677,919
Events in quadrant B4,102,881674,206
Events in quadrant C4,112,720636,695
Events in quadrant D7,565,596532,087

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138711
B0164721
C0167151
D0270601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6551661.007480%
B65511462.228667%
C65511442.198138%
D6551134620.546481%

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 7551 6552 0 0 0.00% 0.00%
B 7551 6552 74 74 0.98% 1.13%
C 7551 6552 0 0 0.00% 0.00%
D 7551 6552 1145 1145 15.16% 17.48%

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 13 254 11310 62.77 830 817 167.2
A 3 137 7875 42.22 830 817 167.2
A 0 226 7137 37.8 830 817 167.2
B 10 245 686409 4393.3 814 794 156.1
B 10 246 213348 1362.01 814 794 156.1
B 12 111 19204 117.97 814 794 156.1
C 3 233 906727 4889.56 787 792 185.3
C 14 238 124357 666.91 787 792 185.3
C 2 114 15246 78.01 787 792 185.3
D 1 52 3469790 19856.05 729 709 174.7
D 8 195 580940 3321.08 729 709 174.7
D 7 80 463938 2651.39 729 709 174.7

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