ASTROSAT CZTI

Data Quality Report

Orbit 10148

Creation date: 2024-06-27T15:55:36.498264
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_116T01_9000001460_10148cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10148cztM0_level2_quad_clean.evt
Size (bytes)573,465,60091,615,680
Size546.9 MB 87.4 MB
Events in quadrant A3,488,043594,006
Events in quadrant B3,439,999601,446
Events in quadrant C3,057,646590,658
Events in quadrant D6,931,479524,968

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147272
B0145701
C0137461
D0251601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66381321.988551%
B6638891.340765%
C6638460.692980%
D6638101715.320880%

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 7688 6639 49 49 0.64% 0.74%
B 7688 6639 22 22 0.29% 0.33%
C 7688 6639 8 8 0.10% 0.12%
D 7688 6638 995 995 12.94% 14.99%

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 15 223 172263 1047.25 803 788 163.7
A 15 239 76232 460.76 803 788 163.7
A 3 1 72573 438.41 803 788 163.7
B 4 239 145217 938.69 806 791 153.9
B 4 81 34983 222.23 806 791 153.9
B 0 245 24857 156.42 806 791 153.9
C 14 234 44537 243.97 770 775 179.4
C 14 67 11930 62.19 770 775 179.4
C 13 61 5852 28.3 770 775 179.4
D 1 52 3052140 17207.9 732 710 177.3
D 8 195 462707 2605.33 732 710 177.3
D 2 16 262129 1474.22 732 710 177.3

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