ASTROSAT CZTI

Data Quality Report

Orbit 05528

Creation date: 2024-06-27T14:56:19.008708
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/AS1A02_199T01_9000000708_05528cztM0_level2.evt modeM0/AS1A02_199T01_9000000708_05528cztM0_level2_quad_clean.evt
Size (bytes)404,994,24086,336,640
Size386.2 MB 82.3 MB
Events in quadrant A2,829,204569,446
Events in quadrant B3,188,208568,727
Events in quadrant C2,703,803544,946
Events in quadrant D3,146,623523,153

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124102
B0133631
C0120571
D0132831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58381041.781432%
B5838500.856458%
C5838510.873587%
D58381011.730045%

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 7073 5839 41 41 0.58% 0.70%
B 7073 5839 4 4 0.06% 0.07%
C 7073 5839 1 1 0.01% 0.02%
D 7073 5839 29 29 0.41% 0.50%

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 50 133622 958.19 690 676 138.7
A 15 174 15547 107.18 690 676 138.7
A 4 2 10406 70.13 690 676 138.7
B 15 204 332978 2580.7 694 679 128.8
B 11 51 57913 444.49 694 679 128.8
B 4 48 35085 267.2 694 679 128.8
C 1 241 51220 325.74 673 677 155.2
C 1 16 22351 139.68 673 677 155.2
C 13 61 5459 30.82 673 677 155.2
D 12 233 202300 1245.47 672 653 161.9
D 12 79 168361 1035.85 672 653 161.9
D 2 152 102005 626.0 672 653 161.9

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