ASTROSAT CZTI

Data Quality Report

Orbit 12359

Creation date: 2024-06-27T16:26:04.762497
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/AS1A04_130T04_9000001832_12359cztM0_level2.evt modeM0/AS1A04_130T04_9000001832_12359cztM0_level2_quad_clean.evt
Size (bytes)327,461,76051,189,120
Size312.3 MB 48.8 MB
Events in quadrant A2,858,267314,164
Events in quadrant B2,384,764320,844
Events in quadrant C2,018,843314,557
Events in quadrant D2,361,250296,233

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114832
B097521
C088451
D098841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4318611.412691%
B4318721.667439%
C4318150.347383%
D4318611.412691%

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 5549 4320 2 2 0.04% 0.05%
B 5549 4320 22 22 0.40% 0.51%
C 5549 4320 0 0 0.00% 0.00%
D 5549 4320 30 30 0.54% 0.69%

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 13 251 275145 2497.42 533 522 110.0
A 1 162 165481 1500.13 533 522 110.0
A 1 178 92308 834.7 533 522 110.0
B 4 239 186296 1824.37 534 521 101.8
B 10 245 43905 426.05 534 521 101.8
B 0 197 28510 274.86 534 521 101.8
C 15 208 4603 34.26 515 518 119.3
C 14 225 4144 30.41 515 518 119.3
C 13 61 3633 26.12 515 518 119.3
D 1 52 318968 2602.6 510 496 122.4
D 13 249 60368 489.28 510 496 122.4
D 2 234 18184 144.55 510 496 122.4

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