ASTROSAT CZTI

Data Quality Report

Orbit 39114

Creation date: 2024-06-27T22:00:35.736715
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/AS1T05_067T01_9000005432_39114cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39114cztM0_level2_quad_clean.evt
Size (bytes)357,269,76093,461,760
Size340.7 MB 89.1 MB
Events in quadrant A2,995,382650,826
Events in quadrant B2,544,830656,815
Events in quadrant C2,746,314614,347
Events in quadrant D4,557,112564,165

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120903
B0105122
C0112282
D0171232

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4906180.366898%
B4906681.386058%
C490690.183449%
D49061342.731349%

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 7029 4907 5 5 0.07% 0.10%
B 7029 4907 46 46 0.65% 0.94%
C 7029 4907 8 8 0.11% 0.16%
D 7029 4907 140 140 1.99% 2.85%

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 10 83 404701 3342.35 600 588 120.9
A 15 223 236700 1952.84 600 588 120.9
A 12 16 22464 180.93 600 588 120.9
B 15 85 97975 868.48 590 576 112.1
B 0 199 55812 492.52 590 576 112.1
B 5 172 48968 431.5 590 576 112.1
C 15 208 233378 1769.54 567 572 131.6
C 15 214 208029 1576.87 567 572 131.6
C 9 187 79314 598.51 567 572 131.6
D 12 235 1675839 12018.11 569 554 139.4
D 2 153 273502 1958.07 569 554 139.4
D 12 233 161576 1155.13 569 554 139.4

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