ASTROSAT CZTI

Data Quality Report

Orbit 09119

Creation date: 2024-06-27T15:41:31.935838
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/AS1A03_105T01_9000001268_09119cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09119cztM0_level2_quad_clean.evt
Size (bytes)491,451,84090,720,000
Size468.7 MB 86.5 MB
Events in quadrant A3,918,548578,970
Events in quadrant B3,366,416592,208
Events in quadrant C3,129,095566,962
Events in quadrant D4,026,016553,569

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157603
B0138042
C0135502
D0161012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65351322.019893%
B6535941.438409%
C6535460.703902%
D65352784.254017%

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 7815 6535 23 23 0.29% 0.35%
B 7815 6535 2 2 0.03% 0.03%
C 7815 6536 0 0 0.00% 0.00%
D 7815 6535 235 235 3.01% 3.60%

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 8 5 528757 3107.43 840 826 169.9
A 1 162 59660 346.3 840 826 169.9
A 15 223 45622 263.67 840 826 169.9
B 0 214 100315 618.92 839 820 160.8
B 12 111 17676 104.85 839 820 160.8
B 11 111 14175 83.08 839 820 160.8
C 13 61 5983 28.04 800 805 184.7
C 10 22 4095 17.82 800 805 184.7
C 12 4 2859 11.12 800 805 184.7
D 1 52 660079 3452.27 795 777 191.0
D 12 233 199209 1039.04 795 777 191.0
D 8 195 65868 340.83 795 777 191.0

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