ASTROSAT CZTI

Data Quality Report

Orbit 05295

Creation date: 2024-06-27T14:53:35.382794
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/AS1G05_240T02_9000000670_05295cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05295cztM0_level2_quad_clean.evt
Size (bytes)259,807,68032,495,040
Size247.8 MB 31.0 MB
Events in quadrant A1,303,263217,337
Events in quadrant B1,338,896219,521
Events in quadrant C1,132,837214,067
Events in quadrant D3,918,580149,664

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056851
B056251
C051901
D0134311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2547250.981547%
B2547240.942285%
C254740.157048%
D2547106641.853161%

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 2547 2547 20 20 0.79% 0.79%
B 2547 2547 12 12 0.47% 0.47%
C 2547 2547 0 0 0.00% 0.00%
D 2547 2547 933 933 36.63% 36.63%

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 13 251 98299 1572.88 295 289 62.3
A 0 50 69230 1106.38 295 289 62.3
A 12 194 2946 42.64 295 289 62.3
B 4 48 62062 1036.55 304 298 59.6
B 10 16 45584 760.01 304 298 59.6
B 15 204 24576 407.44 304 298 59.6
C 14 67 3269 43.93 288 290 67.8
C 13 61 2359 30.51 288 290 67.8
C 1 16 1873 23.34 288 290 67.8
D 11 145 2734007 50768.27 215 209 53.8
D 2 33 229041 4249.55 215 209 53.8
D 8 195 66717 1235.09 215 209 53.8

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