ASTROSAT CZTI

Data Quality Report

Orbit 13925

Creation date: 2024-06-27T16:47:59.958390
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/AS1G08_076T01_9000002056_13925cztM0_level2.evt modeM0/AS1G08_076T01_9000002056_13925cztM0_level2_quad_clean.evt
Size (bytes)290,643,84051,684,480
Size277.2 MB 49.3 MB
Events in quadrant A1,861,946311,782
Events in quadrant B1,949,144320,589
Events in quadrant C1,945,837342,958
Events in quadrant D2,779,242314,248

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081152
B084111
C081951
D0109891

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3898120.307850%
B3898310.795280%
C3898160.410467%
D38981052.693689%

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 5184 3900 0 0 0.00% 0.00%
B 5184 3900 0 0 0.00% 0.00%
C 5184 3900 0 0 0.00% 0.00%
D 5184 3900 74 74 1.43% 1.90%

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 1 162 16056 162.67 470 461 95.9
A 11 29 14568 147.15 470 461 95.9
A 15 69 5788 55.57 470 461 95.9
B 0 189 20724 224.11 473 460 90.4
B 12 0 19376 209.2 473 460 90.4
B 0 214 15915 170.92 473 460 90.4
C 3 233 118014 1084.21 469 472 108.4
C 13 61 3417 27.16 469 472 108.4
C 14 234 1459 9.1 469 472 108.4
D 13 122 379748 3528.44 453 443 107.5
D 1 52 232123 2155.18 453 443 107.5
D 12 110 109034 1010.16 453 443 107.5

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