ASTROSAT CZTI

Data Quality Report

Orbit 20240324_A13_033T02_9000006140_level2

Creation date: 2024-03-27T11:09:11.912876
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_033T02_9000006140cztM0_level2.fits modeM0/AS1A13_033T02_9000006140cztM0_level2_quad_clean.evt
Size (bytes)604,765,440629,680,320
Size576.7 MB 600.5 MB
Events in quadrant A3,584,6163,731,035
Events in quadrant B3,301,0663,623,465
Events in quadrant C3,660,4143,725,444
Events in quadrant D3,058,5783,286,139

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0830
C0830
D0830

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013940
B013940
C013940
D013940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02227870
B02568990
C01434010
D01845340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6857420843.039053%
B685751037315.126504%
C685745680.828302%
D6857337095.408834%

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 86230 68571 0 0 0.00% 0.00%
B 86230 68555 0 0 0.00% 0.00%
C 86230 68576 0 0 0.00% 0.00%
D 86228 68553 0 0 0.00% 0.00%

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 7 110 2995 8.84 933 868 240.6
A 15 236 2879 8.36 933 868 240.6
A 0 29 2859 8.28 933 868 240.6
B 2 9 3116 13.15 871 826 174.2
B 2 8 2486 9.53 871 826 174.2
B 3 17 2285 8.37 871 826 174.2
C 3 202 2854 7.78 966 895 251.8
C 1 81 2775 7.47 966 895 251.8
C 3 203 2723 7.26 966 895 251.8
D 8 176 2626 7.49 877 795 244.4
D 10 189 2257 5.98 877 795 244.4
D 3 14 2256 5.98 877 795 244.4

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