ASTROSAT CZTI

Data Quality Report

Orbit 09919

Creation date: 2024-06-27T15:52:14.492504
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/AS1A03_009T01_9000001412_09919cztM0_level2.evt modeM0/AS1A03_009T01_9000001412_09919cztM0_level2_quad_clean.evt
Size (bytes)477,771,84064,699,200
Size455.6 MB 61.7 MB
Events in quadrant A2,947,095394,419
Events in quadrant B3,040,182393,955
Events in quadrant C2,935,233399,804
Events in quadrant D5,126,370339,819

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016428
B016442
C016434
D016432

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170753858
B0172564030
C0170373799
D0273278067

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041
B040
C041
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62702734.354067%
B62232924.692271%
C62992564.064137%
D575161910.763346%

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 8518 7143 1 1 0.01% 0.01%
B 8518 7119 2 2 0.02% 0.03%
C 8518 7187 0 0 0.00% 0.00%
D 8518 6799 361 361 4.24% 5.31%

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 14 111 30940 194.72 754 737 155.1
A 13 253 7800 45.53 754 737 155.1
A 0 226 6892 39.68 754 737 155.1
B 0 214 33694 223.67 753 733 147.4
B 4 239 18837 122.85 753 733 147.4
B 4 81 16627 107.86 753 733 147.4
C 8 128 7014 35.79 747 748 175.1
C 13 61 5499 27.13 747 748 175.1
C 12 4 5161 25.2 747 748 175.1
D 2 16 695224 4237.77 655 639 163.9
D 8 195 575995 3510.33 655 639 163.9
D 1 52 484816 2954.04 655 639 163.9

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