ASTROSAT CZTI

Data Quality Report

Orbit 33338

Creation date: 2024-06-27T20:48:02.270874
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_090T11_9000004784_33338cztM0_level2.evt modeM0/AS1A10_090T11_9000004784_33338cztM0_level2_quad_clean.evt
Size (bytes)558,005,76092,206,080
Size532.2 MB 87.9 MB
Events in quadrant A2,535,876643,144
Events in quadrant B3,959,517621,001
Events in quadrant C3,467,724624,707
Events in quadrant D6,599,750554,082

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104103
B0150842
C0135012
D0232062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A497670.140675%
B49763507.033762%
C49761342.692926%
D497682916.659968%

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 7099 4977 0 0 0.00% 0.00%
B 7099 4977 220 220 3.10% 4.42%
C 7099 4977 132 132 1.86% 2.65%
D 7099 4977 824 824 11.61% 16.56%

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 0 254 22326 167.51 646 635 129.5
A 13 6 8571 61.28 646 635 129.5
A 15 169 8365 59.69 646 635 129.5
B 0 219 719838 6139.47 621 609 117.1
B 5 172 495167 4221.64 621 609 117.1
B 4 170 137782 1170.93 621 609 117.1
C 1 23 600799 4304.18 606 614 139.4
C 15 214 233731 1671.78 606 614 139.4
C 0 10 161342 1152.65 606 614 139.4
D 8 195 1791537 11616.08 578 568 154.2
D 12 233 1038875 6734.37 578 568 154.2
D 1 52 340877 2207.22 578 568 154.2

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