ASTROSAT CZTI

Data Quality Report

Orbit 05732

Creation date: 2024-06-27T14:58:28.196991
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/AS1A02_150T01_9000000738_05732cztM0_level2.evt modeM0/AS1A02_150T01_9000000738_05732cztM0_level2_quad_clean.evt
Size (bytes)458,507,52064,013,760
Size437.3 MB 61.0 MB
Events in quadrant A3,218,671373,286
Events in quadrant B3,646,045378,699
Events in quadrant C3,200,781378,434
Events in quadrant D3,388,488364,187

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133757
B0144912
C0134457
D0139015

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63501422.236220%
B63521512.377204%
C63501422.236220%
D63511512.377578%

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 8947 6353 0 0 0.00% 0.00%
B 8947 6353 0 0 0.00% 0.00%
C 8947 6353 0 0 0.00% 0.00%
D 8947 6353 7 7 0.08% 0.11%

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 0 226 8026 42.9 834 816 168.1
A 12 194 7984 42.65 834 816 168.1
A 15 174 4381 21.21 834 816 168.1
B 5 172 293609 1828.19 844 827 160.1
B 15 204 34854 212.47 844 827 160.1
B 11 51 28216 171.02 844 827 160.1
C 13 61 6602 30.63 816 822 188.7
C 9 16 6230 28.66 816 822 188.7
C 8 222 4675 20.42 816 822 188.7
D 1 20 160590 798.41 816 794 200.1
D 2 152 58555 288.6 816 794 200.1
D 2 136 46674 229.24 816 794 200.1

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