ASTROSAT CZTI

Data Quality Report

Orbit 22016

Creation date: 2024-06-27T18:35:20.977088
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/AS1A07_153T02_9000003250_22016cztM0_level2.evt modeM0/AS1A07_153T02_9000003250_22016cztM0_level2_quad_clean.evt
Size (bytes)519,624,00076,553,280
Size495.6 MB 73.0 MB
Events in quadrant A3,688,361482,245
Events in quadrant B3,800,340484,115
Events in quadrant C3,584,501454,206
Events in quadrant D4,221,587442,859

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150792
B0155762
C0147812
D0169632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65181452.224609%
B65181622.485425%
C65171812.777352%
D65172083.191653%

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 7828 6518 1 1 0.01% 0.02%
B 7828 6518 13 13 0.17% 0.20%
C 7827 6517 0 0 0.00% 0.00%
D 7827 6517 79 79 1.01% 1.21%

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 15 236 49115 264.93 940 925 181.9
A 3 1 17964 93.67 940 925 181.9
A 13 254 11374 57.44 940 925 181.9
B 3 64 103863 604.96 926 907 170.2
B 0 230 29742 169.43 926 907 170.2
B 12 111 19512 109.32 926 907 170.2
C 14 238 142594 710.16 879 888 199.5
C 0 10 13577 63.59 879 888 199.5
C 13 61 6277 27.01 879 888 199.5
D 11 176 291859 1370.17 895 871 212.4
D 7 238 172524 808.26 895 871 212.4
D 1 52 148713 696.14 895 871 212.4

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