ASTROSAT CZTI

Data Quality Report

Orbit 03183

Creation date: 2024-06-27T14:25:38.089981
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_127T01_9000000436_03183cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03183cztM0_level2_quad_clean.evt
Size (bytes)643,210,56087,661,440
Size613.4 MB 83.6 MB
Events in quadrant A3,110,261591,413
Events in quadrant B3,370,569602,889
Events in quadrant C9,293,604436,913
Events in quadrant D3,253,182557,577

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137413
B0144022
C0322312
D0144602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6675250.374532%
B6675470.704120%
C6675215132.224719%
D6675470.704120%

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 7940 6676 0 0 0.00% 0.00%
B 7940 6676 8 8 0.10% 0.12%
C 7940 6675 1963 1963 24.72% 29.41%
D 7940 6676 29 29 0.37% 0.43%

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 7 16 10030 56.89 800 785 162.5
A 12 194 8459 47.22 800 785 162.5
A 0 226 8238 45.86 800 785 162.5
B 4 81 61167 385.91 819 801 156.4
B 4 80 55268 348.2 819 801 156.4
B 2 249 47356 297.62 819 801 156.4
C 12 206 6653729 45855.9 626 630 145.1
C 1 192 101059 692.2 626 630 145.1
C 6 80 38651 262.06 626 630 145.1
D 12 233 153493 831.76 764 745 183.6
D 13 120 78445 423.1 764 745 183.6
D 13 223 41745 223.26 764 745 183.6

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