ASTROSAT CZTI

Data Quality Report

Orbit 06183

Creation date: 2024-06-27T15:03:52.624302
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_152T01_9000000806_06183cztM0_level2.evt modeM0/AS1A02_152T01_9000000806_06183cztM0_level2_quad_clean.evt
Size (bytes)414,590,40093,216,960
Size395.4 MB 88.9 MB
Events in quadrant A2,988,757605,050
Events in quadrant B3,150,872609,312
Events in quadrant C2,872,932589,134
Events in quadrant D3,096,699562,923

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014616
B014610
C014612
D01462

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148401391
B0155451710
C0147221364
D0157281677

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091
B090
C091
D0101

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6549360.549702%
B6511460.706497%
C655480.122063%
D6496480.738916%

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 8000 7110 0 0 0.00% 0.00%
B 7999 7095 8 8 0.10% 0.11%
C 7999 7107 0 0 0.00% 0.00%
D 7999 7088 42 42 0.53% 0.59%

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 15 55612 353.86 759 745 155.1
A 0 226 7330 42.47 759 745 155.1
A 12 194 7160 41.37 759 745 155.1
B 3 64 133318 907.48 763 747 146.1
B 4 80 26987 179.62 763 747 146.1
B 0 219 16427 107.33 763 747 146.1
C 1 16 13871 77.26 731 736 170.0
C 13 61 5862 30.15 731 736 170.0
C 14 67 3543 16.51 731 736 170.0
D 2 136 172468 968.08 720 700 177.4
D 10 172 109715 614.41 720 700 177.4
D 2 14 31895 175.81 720 700 177.4

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