ASTROSAT CZTI

Data Quality Report

Orbit 43719

Creation date: 2024-06-27T22:54:57.708042
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/AS1A13_003T01_9000005902_43719cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43719cztM0_level2_quad_clean.evt
Size (bytes)833,417,28096,586,560
Size794.8 MB 92.1 MB
Events in quadrant A7,302,435785,105
Events in quadrant B4,158,473810,479
Events in quadrant C7,749,899511,135
Events in quadrant D11,140,998368,098

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262252
B0164602
C0274272
D0374242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64422864.439615%
B64423034.703508%
C6442248238.528407%
D6442346153.725551%

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 7622 6443 44 44 0.58% 0.68%
B 7622 6443 123 123 1.61% 1.91%
C 7621 6434 1210 1210 15.88% 18.81%
D 7622 6442 2927 2927 38.40% 45.44%

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 15 222 2897061 18058.69 790 775 160.4
A 10 83 886353 5521.69 790 775 160.4
A 14 63 228525 1420.05 790 775 160.4
B 5 235 539619 3528.78 788 766 152.7
B 4 171 257506 1681.31 788 766 152.7
B 5 255 122551 797.53 788 766 152.7
C 15 157 4556038 32440.37 593 597 140.4
C 15 158 326030 2317.49 593 597 140.4
C 5 80 313930 2231.32 593 597 140.4
D 12 33 4523546 30799.55 579 562 146.9
D 4 237 2267398 15436.16 579 562 146.9
D 7 80 660161 4491.58 579 562 146.9

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