ASTROSAT CZTI

Data Quality Report

Orbit 44100

Creation date: 2024-06-27T22:59:24.226605
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_038T01_9000005944_44100cztM0_level2.fits modeM0/AS1A13_038T01_9000005944_44100cztM0_level2_quad_clean.evt
Size (bytes)678,323,52092,324,160
Size646.9 MB 88.0 MB
Events in quadrant A12,908,893228,493
Events in quadrant B3,462,716749,445
Events in quadrant C3,069,801724,604
Events in quadrant D5,140,208620,245

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430603
B0151611
C0142401
D0202381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6779488872.105030%
B67801922.831858%
C6780320.471976%
D67805097.507375%

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 7334 6779 3372 3372 45.98% 49.74%
B 7335 6781 65 65 0.89% 0.96%
C 7335 6781 5 5 0.07% 0.07%
D 7335 6781 390 390 5.32% 5.75%

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 10719448 128166.63 395 386 83.6
A 10 83 617994 7384.67 395 386 83.6
A 14 238 18359 214.9 395 386 83.6
B 15 36 255891 1691.86 760 737 150.8
B 4 171 109796 723.14 760 737 150.8
B 4 173 34988 227.11 760 737 150.8
C 14 254 74814 415.43 746 749 178.3
C 14 96 41625 229.27 746 749 178.3
C 3 233 26352 143.61 746 749 178.3
D 13 171 638902 3504.61 722 699 182.1
D 1 52 475775 2608.82 722 699 182.1
D 2 249 280663 1537.38 722 699 182.1

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