ASTROSAT CZTI

Data Quality Report

Orbit 10959

Creation date: 2024-06-27T16:06:16.090871
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/AS1T01_193T01_9000001590_10959cztM0_level2.evt modeM0/AS1T01_193T01_9000001590_10959cztM0_level2_quad_clean.evt
Size (bytes)570,911,04097,534,080
Size544.5 MB 93.0 MB
Events in quadrant A4,800,838623,069
Events in quadrant B4,028,256640,702
Events in quadrant C3,032,969641,783
Events in quadrant D4,973,183580,319

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186042
B0162851
C0136221
D0193611

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67054376.517524%
B67053094.608501%
C6705771.148397%
D670576711.439224%

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 7590 6705 290 290 3.82% 4.33%
B 7590 6705 144 144 1.90% 2.15%
C 7590 6706 0 0 0.00% 0.00%
D 7590 6706 608 608 8.01% 9.07%

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 8 5 1607654 10116.29 787 771 158.8
A 8 15 98626 616.06 787 771 158.8
A 13 210 40449 249.8 787 771 158.8
B 4 239 838071 5587.49 791 774 149.9
B 0 214 44363 290.88 791 774 149.9
B 0 187 22753 146.67 791 774 149.9
C 13 61 5860 28.59 776 780 177.7
C 5 207 3649 16.15 776 780 177.7
C 8 222 2744 11.05 776 780 177.7
D 10 253 1646162 9402.35 728 707 175.0
D 1 52 215034 1224.69 728 707 175.0
D 14 34 129604 736.54 728 707 175.0

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