ASTROSAT CZTI

Data Quality Report

Orbit 19612

Creation date: 2024-06-27T18:04:46.055526
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/AS1T03_116T01_9000002916_19612cztM0_level2.evt modeM0/AS1T03_116T01_9000002916_19612cztM0_level2_quad_clean.evt
Size (bytes)479,424,960103,357,440
Size457.2 MB 98.6 MB
Events in quadrant A3,372,573683,963
Events in quadrant B3,466,508700,029
Events in quadrant C3,630,039654,626
Events in quadrant D3,607,352636,577

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139002
B0141912
C0147312
D0148642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6526380.582286%
B6526630.965369%
C65261081.654919%
D6526470.720196%

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 7846 6527 1 1 0.01% 0.02%
B 7846 6527 3 3 0.04% 0.05%
C 7846 6527 32 32 0.41% 0.49%
D 7846 6527 31 31 0.40% 0.47%

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 9 143 48670 279.63 861 849 171.0
A 11 29 11576 62.73 861 849 171.0
A 0 226 7426 38.46 861 849 171.0
B 7 220 32366 194.99 861 843 161.7
B 4 216 22540 134.21 861 843 161.7
B 12 0 20087 119.04 861 843 161.7
C 3 233 301406 1576.09 818 828 190.7
C 14 238 130460 679.73 818 828 190.7
C 9 221 8280 39.07 818 828 190.7
D 7 238 365559 1810.72 827 805 201.4
D 1 52 81877 402.46 827 805 201.4
D 2 234 23699 113.65 827 805 201.4

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