ASTROSAT CZTI

Data Quality Report

Orbit 04569

Creation date: 2024-06-27T14:43:54.938551
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_233T10_9000000570_04569cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04569cztM0_level2_quad_clean.evt
Size (bytes)542,819,52082,359,360
Size517.7 MB 78.5 MB
Events in quadrant A2,980,198528,703
Events in quadrant B3,282,113523,221
Events in quadrant C3,245,052517,518
Events in quadrant D6,488,081467,952

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135823
B0142722
C0141192
D0236852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A654690.137489%
B6546530.809655%
C6546460.702719%
D654695414.573786%

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 7641 6547 0 0 0.00% 0.00%
B 7641 6547 11 11 0.14% 0.17%
C 7641 6547 26 26 0.34% 0.40%
D 7641 6547 911 911 11.92% 13.91%

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 86139 555.26 744 725 153.8
A 8 15 21574 135.54 744 725 153.8
A 12 194 7732 45.55 744 725 153.8
B 10 16 117612 817.73 751 733 142.9
B 14 167 102455 711.69 751 733 142.9
B 15 204 58606 404.9 751 733 142.9
C 14 48 306177 1780.22 729 731 171.6
C 9 247 37085 211.88 729 731 171.6
C 5 250 14635 81.04 729 731 171.6
D 13 235 2899436 17752.58 673 651 163.3
D 13 25 312709 1911.09 673 651 163.3
D 7 67 285612 1745.14 673 651 163.3

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