ASTROSAT CZTI

Data Quality Report

Orbit 04254

Creation date: 2024-06-27T14:39:24.221873
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/AS1G05_240T01_9000000536_04254cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04254cztM0_level2_quad_clean.evt
Size (bytes)474,724,80073,474,560
Size452.7 MB 70.1 MB
Events in quadrant A3,230,923452,706
Events in quadrant B3,436,167456,252
Events in quadrant C3,023,930441,159
Events in quadrant D4,247,238423,757

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134962
B0140251
C0132361
D0170571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6468540.834879%
B6468711.097712%
C6468230.355597%
D6468661.020408%

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 7743 6469 1 1 0.01% 0.02%
B 7743 6469 24 24 0.31% 0.37%
C 7743 6469 0 0 0.00% 0.00%
D 7743 6469 33 33 0.43% 0.51%

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 0 149 63470 383.03 810 797 163.6
A 14 111 19180 112.35 810 797 163.6
A 0 226 15139 87.65 810 797 163.6
B 3 0 89000 572.86 807 792 154.0
B 8 3 54280 347.38 807 792 154.0
B 15 204 36482 231.79 807 792 154.0
C 9 144 13580 71.73 769 773 178.5
C 13 61 6441 31.74 769 773 178.5
C 10 65 4053 18.37 769 773 178.5
D 11 132 747876 4051.75 777 759 184.4
D 13 239 182364 984.88 777 759 184.4
D 2 136 123566 666.0 777 759 184.4

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