ASTROSAT CZTI

Data Quality Report

Orbit 34376

Creation date: 2022-02-05T19:20:22.926548
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/AS1A05_082T12_9000004908_34376cztM0_level2.evt modeM0/AS1A05_082T12_9000004908_34376cztM0_level2_quad_clean.evt
Size (bytes)434,998,08037,814,400
Size414.8 MB 36.1 MB
Events in quadrant A1,901,171224,784
Events in quadrant B2,572,862225,847
Events in quadrant C3,043,449218,920
Events in quadrant D5,390,514197,921

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080491
B0102101
C0117511
D0188271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A392540.101911%
B3925631.605096%
C39251363.464968%
D392572818.547771%

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 3925 3925 1 1 0.03% 0.03%
B 3925 3925 27 27 0.69% 0.69%
C 3925 3925 124 124 3.16% 3.16%
D 3925 3925 661 661 16.84% 16.84%

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 17825 177.98 482 473 97.5
A 9 143 10232 100.1 482 473 97.5
A 13 6 7708 74.21 482 473 97.5
B 4 251 394109 4257.35 474 462 92.5
B 5 172 154345 1664.26 474 462 92.5
B 0 190 47870 512.72 474 462 92.5
C 4 254 997518 9298.94 463 467 107.2
C 15 214 162323 1509.54 463 467 107.2
C 0 10 40884 376.95 463 467 107.2
D 12 235 2103083 19124.05 445 433 109.9
D 8 195 506285 4600.83 445 433 109.9
D 7 223 324855 2950.69 445 433 109.9

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