ASTROSAT CZTI

Data Quality Report

Orbit 05301

Creation date: 2024-06-27T14:53:42.471173
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_240T01_9000000674_05301cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05301cztM0_level2_quad_clean.evt
Size (bytes)350,985,60061,686,720
Size334.7 MB 58.8 MB
Events in quadrant A2,379,620391,310
Events in quadrant B2,775,307387,942
Events in quadrant C2,434,364378,148
Events in quadrant D2,709,614369,638

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01047462
B011605102
C01028389
D01136569

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B021
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48672665.465379%
B48522655.461665%
C48542064.243923%
D48652695.529291%

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 4946 4890 9 9 0.18% 0.18%
B 4946 4891 25 25 0.51% 0.51%
C 4946 4892 0 0 0.00% 0.00%
D 4946 4892 30 30 0.61% 0.61%

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 0 50 87190 698.73 593 576 124.0
A 12 194 6000 43.75 593 576 124.0
A 13 251 5991 43.68 593 576 124.0
B 4 48 391592 3350.26 595 579 116.7
B 10 16 60495 513.37 595 579 116.7
B 12 111 10615 85.99 595 579 116.7
C 1 16 175138 1285.55 577 577 135.8
C 13 61 4725 30.55 577 577 135.8
C 14 67 2462 13.88 577 577 135.8
D 1 239 200130 1388.9 577 557 143.7
D 8 195 105144 727.86 577 557 143.7
D 2 136 52577 362.03 577 557 143.7

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