ASTROSAT CZTI

Data Quality Report

Orbit 19496

Creation date: 2024-06-27T18:03:28.127051
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/AS1A05_062T01_9000002892_19496cztM0_level2.evt modeM0/AS1A05_062T01_9000002892_19496cztM0_level2_quad_clean.evt
Size (bytes)383,218,56065,612,160
Size365.5 MB 62.6 MB
Events in quadrant A2,492,104422,385
Events in quadrant B2,664,271429,402
Events in quadrant C2,994,421403,400
Events in quadrant D3,128,599394,755

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123
B0123
C0112
D0123

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010812
B01059
C01077
D010610

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113841129
B0118571109
C0132431326
D0136931251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4800400.833333%
B4811761.579713%
C47961072.231026%
D4793811.689965%

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 6937 4880 1 1 0.01% 0.02%
B 6937 4902 19 19 0.27% 0.39%
C 6937 4874 22 22 0.32% 0.45%
D 6937 4876 39 39 0.56% 0.80%

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 5 16 8722 63.0 641 630 128.4
A 11 29 7453 53.12 641 630 128.4
A 13 254 6769 47.8 641 630 128.4
B 7 220 69669 582.86 630 616 118.5
B 0 189 46383 386.31 630 616 118.5
B 0 198 34835 288.83 630 616 118.5
C 5 112 239442 1692.88 611 615 141.1
C 9 221 216703 1531.7 611 615 141.1
C 14 238 97016 683.32 611 615 141.1
D 7 238 644784 4277.06 624 607 150.6
D 12 218 49987 327.86 624 607 150.6
D 1 52 32496 211.73 624 607 150.6

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