ASTROSAT CZTI

Data Quality Report

Orbit 44613

Creation date: 2024-06-27T23:04:31.989035
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/AS1A13_009T03_9000006006_44613cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44613cztM0_level2_quad_clean.evt
Size (bytes)1,273,138,560226,975,680
Size1.2 GB 216.5 MB
Events in quadrant A17,147,4551,338,525
Events in quadrant B8,675,2881,558,695
Events in quadrant C7,891,6771,567,714
Events in quadrant D12,235,2801,355,846

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03100
B03100
C03100
D03100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0626154
B0368852
C0346285
D0469342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15231266617.503775%
B152339956.531872%
C152302231.464215%
D1523214099.250263%

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 15902 15235 2396 2396 15.07% 15.73%
B 15902 15232 602 602 3.79% 3.95%
C 15901 15230 123 123 0.77% 0.81%
D 15901 15232 1297 1297 8.16% 8.51%

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 15 223 6437133 19546.6 1591 1559 329.2
A 10 83 3665300 11127.78 1591 1559 329.2
A 9 191 704130 2133.9 1591 1559 329.2
B 5 172 1720392 5280.1 1644 1592 325.5
B 0 186 152007 462.07 1644 1592 325.5
B 15 36 133292 404.58 1644 1592 325.5
C 15 158 460583 1171.78 1657 1669 391.6
C 12 2 326679 829.87 1657 1669 391.6
C 12 249 235548 597.18 1657 1669 391.6
D 1 52 2530127 6197.72 1614 1566 408.0
D 13 249 1719494 4210.79 1614 1566 408.0
D 2 249 377622 921.74 1614 1566 408.0

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