ASTROSAT CZTI

Data Quality Report

Orbit 07511

Creation date: 2024-06-27T15:20:40.631141
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/AS1A02_134T01_9000001036_07511cztM0_level2.evt modeM0/AS1A02_134T01_9000001036_07511cztM0_level2_quad_clean.evt
Size (bytes)531,892,80077,097,600
Size507.3 MB 73.5 MB
Events in quadrant A3,241,486487,623
Events in quadrant B4,004,609490,040
Events in quadrant C5,007,019448,519
Events in quadrant D3,413,087453,581

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138822
B0162991
C0192571
D0145841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6518871.334765%
B65182233.421295%
C65185047.732433%
D65181291.979135%

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 7783 6518 0 0 0.00% 0.00%
B 7783 6518 94 94 1.21% 1.44%
C 7783 6518 319 319 4.10% 4.89%
D 7783 6518 38 38 0.49% 0.58%

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 14 11396 63.3 838 822 167.1
A 0 226 8033 43.17 838 822 167.1
A 12 194 7653 40.89 838 822 167.1
B 0 187 514500 3360.69 833 816 152.9
B 0 214 185383 1207.5 833 816 152.9
B 0 219 57305 369.57 833 816 152.9
C 9 68 1775658 9950.17 785 788 178.4
C 1 16 113722 633.12 785 788 178.4
C 8 229 48911 269.78 785 788 178.4
D 2 152 124574 636.06 806 782 194.6
D 1 52 68141 346.1 806 782 194.6
D 2 14 64717 328.51 806 782 194.6

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