ASTROSAT CZTI

Data Quality Report

Orbit 13730

Creation date: 2024-06-27T16:45:16.934439
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/AS1G08_062T01_9000002038_13730cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13730cztM0_level2_quad_clean.evt
Size (bytes)526,017,60085,800,960
Size501.6 MB 81.8 MB
Events in quadrant A3,436,957526,785
Events in quadrant B3,902,570515,243
Events in quadrant C4,311,525537,023
Events in quadrant D3,806,409533,475

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147123
B0160862
C0169542
D0158582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6969771.104893%
B69691682.410676%
C69692653.802554%
D69691331.908452%

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 8500 6972 5 5 0.06% 0.07%
B 8500 6972 26 26 0.31% 0.37%
C 8500 6972 179 179 2.11% 2.57%
D 8500 6972 39 39 0.46% 0.56%

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 69 47116 258.18 865 846 179.2
A 15 157 39592 216.2 865 846 179.2
A 1 162 17361 92.15 865 846 179.2
B 15 33 165825 1000.94 854 833 164.8
B 0 219 107141 644.93 854 833 164.8
B 10 246 81527 489.54 854 833 164.8
C 4 254 871771 4391.32 842 847 198.3
C 3 233 148276 743.36 842 847 198.3
C 14 234 6315 27.57 842 847 198.3
D 5 222 274909 1334.59 847 824 205.4
D 1 52 132490 641.12 847 824 205.4
D 8 195 119737 579.02 847 824 205.4

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