ASTROSAT CZTI

Data Quality Report

Orbit 05823

Creation date: 2024-06-27T14:59:32.147204
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_197T02_9000000752_05823cztM0_level2.evt modeM0/AS1A02_197T02_9000000752_05823cztM0_level2_quad_clean.evt
Size (bytes)483,373,44080,147,520
Size461.0 MB 76.4 MB
Events in quadrant A3,484,150481,702
Events in quadrant B3,607,301487,745
Events in quadrant C3,381,435475,176
Events in quadrant D3,651,679455,998

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01542
C01542
D01544

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016010344
B016132329
C015856334
D016769382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75571111.468837%
B7567951.255451%
C7559630.833444%
D7551811.072706%

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 7726 7695 1 1 0.01% 0.01%
B 7727 7704 0 0 0.00% 0.00%
C 7727 7712 0 0 0.00% 0.00%
D 7727 7707 26 26 0.34% 0.34%

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 4 2 37745 203.41 886 865 181.3
A 15 223 20082 105.99 886 865 181.3
A 0 226 8595 42.63 886 865 181.3
B 15 204 134951 784.61 896 873 170.9
B 12 111 16769 93.02 896 873 170.9
B 11 111 13142 71.8 896 873 170.9
C 9 16 8134 36.43 862 864 199.6
C 13 61 6991 30.7 862 864 199.6
C 8 222 5192 21.69 862 864 199.6
D 12 233 210979 1001.14 858 831 209.9
D 1 239 68801 323.81 858 831 209.9
D 13 172 57000 267.59 858 831 209.9

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