ASTROSAT CZTI

Data Quality Report

Orbit 14343

Creation date: 2024-06-27T16:53:47.544600
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_078T01_9000002110_14343cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14343cztM0_level2_quad_clean.evt
Size (bytes)367,957,44087,243,840
Size350.9 MB 83.2 MB
Events in quadrant A2,695,921583,851
Events in quadrant B2,780,364590,793
Events in quadrant C2,618,327562,601
Events in quadrant D2,701,901547,494

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01064
B01066
C01064
D01064

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011413382
B011719359
C011057368
D011792428

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0150
C0150
D0171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509880.156924%
B5107420.822401%
C510460.117555%
D5101651.274260%

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 7794 5128 0 0 0.00% 0.00%
B 7794 5128 23 23 0.30% 0.45%
C 7794 5127 0 0 0.00% 0.00%
D 7794 5125 58 58 0.74% 1.13%

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 12 189 161876 1243.86 652 643 129.6
A 8 15 19674 146.82 652 643 129.6
A 0 226 5915 40.67 652 643 129.6
B 0 229 179643 1485.39 646 634 120.5
B 4 48 43378 354.68 646 634 120.5
B 4 173 14342 113.75 646 634 120.5
C 3 233 207305 1453.29 618 624 142.2
C 13 61 4483 27.13 618 624 142.2
C 3 203 1463 5.9 618 624 142.2
D 12 233 140917 964.29 618 604 145.5
D 5 222 110780 757.18 618 604 145.5
D 2 120 47200 320.23 618 604 145.5

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