ASTROSAT CZTI

Data Quality Report

Orbit 37632

Creation date: 2024-06-27T21:42:27.001258
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/AS1A11_075T01_9000005342_37632cztM0_level2.evt modeM0/AS1A11_075T01_9000005342_37632cztM0_level2_quad_clean.evt
Size (bytes)540,650,88059,080,320
Size515.6 MB 56.3 MB
Events in quadrant A4,137,087346,327
Events in quadrant B3,280,736365,166
Events in quadrant C2,805,180364,586
Events in quadrant D5,783,718333,182

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156753
B0131822
C0114502
D0208352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54264147.629930%
B54261452.672318%
C5426190.350166%
D542684515.573166%

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 7159 5427 332 332 4.64% 6.12%
B 7158 5425 104 104 1.45% 1.92%
C 7158 5425 11 11 0.15% 0.20%
D 7158 5425 820 820 11.46% 15.12%

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 15 222 1223510 9632.71 626 615 127.0
A 10 83 316396 2487.4 626 615 127.0
A 9 143 63534 495.61 626 615 127.0
B 5 172 468073 3824.78 634 616 122.2
B 5 255 77676 630.51 634 616 122.2
B 0 230 63496 514.49 634 616 122.2
C 15 214 251052 1723.6 625 632 145.3
C 0 10 91428 624.93 625 632 145.3
C 14 254 17332 114.94 625 632 145.3
D 2 249 2527085 17318.78 593 576 145.9
D 13 249 551451 3776.15 593 576 145.9
D 12 227 205913 1407.55 593 576 145.9

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