ASTROSAT CZTI

Data Quality Report

Orbit 20240607_C09_005T01_9000006296_level2

Creation date: 2024-06-18T08:38:14.107801
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/AS1C09_005T01_9000006296cztM0_level2.fits modeM0/AS1C09_005T01_9000006296cztM0_level2_quad_clean.evt
Size (bytes)2,608,390,0803,266,147,520
Size2.4 GB 3.0 GB
Events in quadrant A15,415,33220,861,630
Events in quadrant B14,053,36618,893,687
Events in quadrant C15,707,48620,543,025
Events in quadrant D13,181,91618,025,359

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061160
B061160
C061160
D061160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010508780
B010315900
C06342260
D07992120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A300794105623.511373%
B3007945117217.012307%
C30079431781.056537%
D300793180656.005791%

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 347969 300799 0 0 0.00% 0.00%
B 347969 300616 0 0 0.00% 0.00%
C 347969 300768 0 0 0.00% 0.00%
D 347968 299548 0 0 0.00% 0.00%

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 7 110 12600 8.6 4018 3746 1028.9
A 0 29 11773 7.8 4018 3746 1028.9
A 14 95 11558 7.59 4018 3746 1028.9
B 2 9 13357 13.59 3709 3533 723.0
B 2 8 10720 9.94 3709 3533 723.0
B 3 17 10081 9.06 3709 3533 723.0
C 3 202 11928 7.54 4152 3863 1069.8
C 1 81 11860 7.48 4152 3863 1069.8
C 3 203 11658 7.29 4152 3863 1069.8
D 10 189 9599 5.91 3781 3427 1044.7
D 15 47 9545 5.86 3781 3427 1044.7
D 4 16 9423 5.74 3781 3427 1044.7

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