ASTROSAT CZTI

Data Quality Report

Orbit 12080

Creation date: 2024-06-27T16:21:59.256251
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/AS1A04_130T01_9000001792_12080cztM0_level2.evt modeM0/AS1A04_130T01_9000001792_12080cztM0_level2_quad_clean.evt
Size (bytes)394,848,00053,982,720
Size376.6 MB 51.5 MB
Events in quadrant A2,344,875342,333
Events in quadrant B3,114,497337,333
Events in quadrant C2,143,608343,950
Events in quadrant D4,028,476273,641

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101041
B0123201
C096881
D0149501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4796460.959133%
B47962234.649708%
C4796180.375313%
D479667914.157631%

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 4797 4797 10 10 0.21% 0.21%
B 4797 4797 107 107 2.23% 2.23%
C 4797 4797 0 0 0.00% 0.00%
D 4797 4797 617 617 12.86% 12.86%

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 1 162 69731 600.95 561 549 115.1
A 1 178 28469 242.53 561 549 115.1
A 1 161 26769 227.76 561 549 115.1
B 4 239 777195 7170.59 554 541 108.3
B 15 204 71980 659.57 554 541 108.3
B 11 51 58128 531.68 554 541 108.3
C 8 208 10859 80.53 543 545 128.1
C 8 128 9230 67.81 543 545 128.1
C 8 112 5117 35.7 543 545 128.1
D 1 52 1811606 15180.22 493 480 119.3
D 8 195 218344 1826.06 493 480 119.3
D 13 104 50027 415.29 493 480 119.3

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