ASTROSAT CZTI

Data Quality Report

Orbit 29396

Creation date: 2024-06-27T20:03:31.599045
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/AS1A10_101T19_9000004228_29396cztM0_level2.evt modeM0/AS1A10_101T19_9000004228_29396cztM0_level2_quad_clean.evt
Size (bytes)824,460,48092,946,240
Size786.3 MB 88.6 MB
Events in quadrant A3,290,207616,363
Events in quadrant B3,578,887632,946
Events in quadrant C4,708,894600,546
Events in quadrant D12,953,768512,259

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137881
B0148351
C0183853
D0429041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6481721.110940%
B64821091.681580%
C64812363.641413%
D6481337752.106156%

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 7621 6481 2 2 0.03% 0.03%
B 7622 6483 14 14 0.18% 0.22%
C 7621 6482 2 2 0.03% 0.03%
D 7621 6481 3495 3495 45.86% 53.93%

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 1 113 99013 595.98 826 811 164.8
A 13 254 11322 63.79 826 811 164.8
A 3 137 7753 42.13 826 811 164.8
B 5 255 224710 1444.12 821 801 155.0
B 0 156 88477 565.47 821 801 155.0
B 0 229 36238 228.55 821 801 155.0
C 3 233 1459866 7949.17 786 793 183.6
C 14 238 135359 733.13 786 793 183.6
C 10 9 17501 91.02 786 793 183.6
D 8 195 8754090 57976.67 634 618 151.0
D 1 52 1474680 9763.12 634 618 151.0
D 12 33 263287 1739.73 634 618 151.0

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