ASTROSAT CZTI

Data Quality Report

Orbit 14416

Creation date: 2024-06-27T16:54:51.416256
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/AS1A04_201T03_9000002128_14416cztM0_level2.evt modeM0/AS1A04_201T03_9000002128_14416cztM0_level2_quad_clean.evt
Size (bytes)474,249,60069,442,560
Size452.3 MB 66.2 MB
Events in quadrant A3,382,931418,707
Events in quadrant B3,443,365429,463
Events in quadrant C3,521,759411,147
Events in quadrant D3,577,245393,840

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137543
B0139332
C0141162
D0147552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6438320.497049%
B6438500.776639%
C6438220.341721%
D6438711.102827%

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 7829 6440 0 0 0.00% 0.00%
B 7829 6439 4 4 0.05% 0.06%
C 7829 6440 0 0 0.00% 0.00%
D 7829 6440 56 56 0.72% 0.87%

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 11 29 33897 192.76 859 844 171.5
A 12 189 23542 132.37 859 844 171.5
A 8 15 21263 119.08 859 844 171.5
B 0 229 21757 131.29 862 844 159.3
B 12 111 17790 106.38 862 844 159.3
B 11 111 15588 92.56 862 844 159.3
C 3 233 301024 1589.44 826 833 188.9
C 13 61 5731 25.93 826 833 188.9
C 3 202 1955 5.94 826 833 188.9
D 10 199 183892 904.49 812 794 202.4
D 2 120 155702 765.23 812 794 202.4
D 5 51 90447 442.88 812 794 202.4

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