ASTROSAT CZTI

Data Quality Report

Orbit 46708

Creation date: 2024-06-27T23:26:41.657787
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_037T01_9000006256_46708cztM0_level2.fits modeM0/AS1A13_037T01_9000006256_46708cztM0_level2_quad_clean.evt
Size (bytes)527,411,520103,947,840
Size503.0 MB 99.1 MB
Events in quadrant A6,116,757694,108
Events in quadrant B3,326,155729,785
Events in quadrant C2,834,522701,027
Events in quadrant D6,743,222570,622

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225051
B0145381
C0133381
D0245241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64812153.317389%
B64811071.650980%
C6481290.447462%
D648193114.365067%

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 7471 6482 24 24 0.32% 0.37%
B 7471 6482 19 19 0.25% 0.29%
C 7471 6482 0 0 0.00% 0.00%
D 7471 6482 846 846 11.32% 13.05%

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 10 83 3248206 21875.37 709 695 148.5
A 9 191 62253 414.66 709 695 148.5
A 13 248 38849 257.01 709 695 148.5
B 4 171 202324 1401.56 722 699 143.9
B 0 190 59844 411.14 722 699 143.9
B 15 201 58714 403.28 722 699 143.9
C 14 254 33852 196.65 711 715 168.5
C 3 233 16354 92.81 711 715 168.5
C 9 244 6899 36.7 711 715 168.5
D 13 168 2641176 15622.12 670 649 169.0
D 1 52 737096 4357.03 670 649 169.0
D 13 249 279015 1646.89 670 649 169.0

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