ASTROSAT CZTI

Data Quality Report

Orbit 05512

Creation date: 2024-06-27T14:56:06.487477
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_162T01_9000000704_05512cztM0_level2.evt modeM0/AS1A02_162T01_9000000704_05512cztM0_level2_quad_clean.evt
Size (bytes)518,981,76069,413,760
Size494.9 MB 66.2 MB
Events in quadrant A2,626,256440,953
Events in quadrant B6,991,779398,733
Events in quadrant C2,647,659438,040
Events in quadrant D3,062,310421,984

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118672
B0246871
C0120511
D0130371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5748190.330550%
B574885414.857342%
C5748100.173974%
D5748430.748086%

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 6923 5749 5 5 0.07% 0.09%
B 6923 5749 773 773 11.17% 13.45%
C 6923 5749 1 1 0.01% 0.02%
D 6923 5749 24 24 0.35% 0.42%

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 34161 241.88 671 655 138.5
A 0 226 6802 44.37 671 655 138.5
A 12 194 6738 43.91 671 655 138.5
B 15 255 3226589 25792.65 649 636 125.1
B 15 204 1032357 8248.98 649 636 125.1
B 11 51 59351 469.45 649 636 125.1
C 1 16 108643 726.55 638 643 148.6
C 9 247 40599 268.8 638 643 148.6
C 12 4 6106 36.75 638 643 148.6
D 2 152 161319 1027.82 642 625 156.3
D 2 136 127504 811.54 642 625 156.3
D 8 195 101079 642.52 642 625 156.3

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