ASTROSAT CZTI

Data Quality Report

Orbit 03409

Creation date: 2024-06-27T14:28:37.283388
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/AS1G05_210T01_9000000454_03409cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03409cztM0_level2_quad_clean.evt
Size (bytes)911,226,240142,312,320
Size869.0 MB 135.7 MB
Events in quadrant A6,581,120846,424
Events in quadrant B6,709,106850,407
Events in quadrant C6,964,908835,210
Events in quadrant D6,398,482817,087

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02860
B02860
C02860
D02860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293235
B0290394
C0305514
D0294234

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A139114653.342678%
B139114503.234850%
C139114953.558335%
D139114213.026382%

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 15176 13915 5 5 0.03% 0.04%
B 15176 13915 3 3 0.02% 0.02%
C 15176 13915 85 85 0.56% 0.61%
D 15176 13915 48 48 0.32% 0.34%

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 8 15 209718 627.78 1606 1566 331.6
A 0 118 129138 384.75 1606 1566 331.6
A 0 226 28328 80.71 1606 1566 331.6
B 15 204 264134 818.31 1633 1587 320.8
B 0 229 49073 148.0 1633 1587 320.8
B 4 200 37785 112.82 1633 1587 320.8
C 7 220 506907 1377.24 1565 1568 366.9
C 14 223 168870 455.96 1565 1568 366.9
C 1 16 43514 114.32 1565 1568 366.9
D 2 37 155342 404.6 1561 1511 380.2
D 12 79 144010 374.8 1561 1511 380.2
D 13 239 70612 181.75 1561 1511 380.2

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