ASTROSAT CZTI

Data Quality Report

Orbit 32088

Creation date: 2024-06-27T20:36:20.902388
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/AS1C06_002T04_9000004684_32088cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32088cztM0_level2_quad_clean.evt
Size (bytes)695,695,680105,825,600
Size663.5 MB 100.9 MB
Events in quadrant A3,070,529737,557
Events in quadrant B8,951,674657,513
Events in quadrant C3,509,980692,814
Events in quadrant D5,097,242662,538

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133451
B0311141
C0145731
D0197721

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6501280.430703%
B6501202831.195201%
C65013325.106907%
D65024727.259305%

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 7601 6501 0 0 0.00% 0.00%
B 7601 6501 1706 1706 22.44% 26.24%
C 7601 6501 17 17 0.22% 0.26%
D 7602 6502 419 419 5.51% 6.44%

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 13 254 15298 92.13 792 776 157.6
A 13 6 10275 60.26 792 776 157.6
A 3 137 7682 43.81 792 776 157.6
B 10 245 4186406 30563.77 722 704 136.9
B 6 159 1660991 12123.33 722 704 136.9
B 5 172 152429 1107.89 722 704 136.9
C 14 238 236913 1334.2 753 757 177.0
C 14 254 155803 875.95 753 757 177.0
C 0 10 113200 635.26 753 757 177.0
D 12 227 966738 5489.91 740 721 176.0
D 8 195 758765 4307.99 740 721 176.0
D 2 250 154564 874.3 740 721 176.0

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