ASTROSAT CZTI

Data Quality Report

Orbit 33420

Creation date: 2024-06-27T20:48:38.428090
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/AS1A11_046T04_9000004792_33420cztM0_level2.evt modeM0/AS1A11_046T04_9000004792_33420cztM0_level2_quad_clean.evt
Size (bytes)457,104,960104,218,560
Size435.9 MB 99.4 MB
Events in quadrant A2,829,235707,268
Events in quadrant B3,779,387693,759
Events in quadrant C2,811,247704,477
Events in quadrant D4,048,326663,971

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115813
B0150112
C0117942
D0159622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A552770.126651%
B55273766.802967%
C5527470.850371%
D55271743.148182%

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 7290 5528 0 0 0.00% 0.00%
B 7290 5527 288 288 3.95% 5.21%
C 7290 5528 35 35 0.48% 0.63%
D 7290 5528 151 151 2.07% 2.73%

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 15 47 388613 3087.99 628 615 125.6
A 13 6 10120 75.65 628 615 125.6
A 13 254 9495 70.67 628 615 125.6
B 5 172 1074595 9302.77 610 594 115.4
B 5 255 118765 1023.57 610 594 115.4
B 0 155 35050 298.45 610 594 115.4
C 15 214 237671 1684.6 611 616 140.7
C 0 10 99771 704.63 611 616 140.7
C 14 254 39811 278.53 611 616 140.7
D 8 195 880862 5950.06 599 583 147.9
D 13 249 348006 2348.33 599 583 147.9
D 10 118 118274 795.51 599 583 147.9

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