ASTROSAT CZTI

Data Quality Report

Orbit 32683

Creation date: 2024-06-27T20:40:46.124183
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/AS1A10_057T03_9000004722_32683cztM0_level2.evt modeM0/AS1A10_057T03_9000004722_32683cztM0_level2_quad_clean.evt
Size (bytes)513,288,00080,861,760
Size489.5 MB 77.1 MB
Events in quadrant A3,182,843525,045
Events in quadrant B3,198,773538,068
Events in quadrant C2,871,555523,227
Events in quadrant D5,928,422487,044

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128933
B0129592
C0118832
D0212182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5355771.437908%
B5355721.344538%
C5355671.251167%
D5355110920.709617%

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 7268 5356 65 65 0.89% 1.21%
B 7268 5356 45 45 0.62% 0.84%
C 7268 5356 40 40 0.55% 0.75%
D 7268 5356 895 895 12.31% 16.71%

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 15 249 620630 4803.52 642 632 129.1
A 0 253 25593 193.39 642 632 129.1
A 12 189 22121 166.49 642 632 129.1
B 3 26 295084 2412.93 649 636 122.0
B 0 219 107647 876.93 649 636 122.0
B 15 36 54112 438.22 649 636 122.0
C 0 10 186593 1302.82 618 623 142.7
C 8 35 70672 490.73 618 623 142.7
C 0 207 58381 404.63 618 623 142.7
D 7 38 1164265 8859.55 558 547 131.4
D 12 218 623908 4745.73 558 547 131.4
D 2 249 513795 3907.43 558 547 131.4

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