ASTROSAT CZTI

Data Quality Report

Orbit 56114

Creation date: 2026-02-10T20:19:37.589063
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/AS1A14_083T03_9000006548_56114cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56114cztM0_level2_quad_clean.evt
Size (bytes)679,950,72084,738,240
Size648.5 MB 80.8 MB
Events in quadrant A9,940,486376,870
Events in quadrant B3,430,229687,372
Events in quadrant C7,655,398480,762
Events in quadrant D3,642,319570,293

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0339281
B0146741
C0272501
D0153061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6455277242.943455%
B64551612.494191%
C6456160124.798637%
D64561592.462825%

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 7584 6454 2457 2457 32.40% 38.07%
B 7585 6456 51 51 0.67% 0.79%
C 7586 6457 1467 1467 19.34% 22.72%
D 7586 6457 91 91 1.20% 1.41%

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 12 115 6812980 50016.06 551 539 136.2
A 15 32 380882 2792.43 551 539 136.2
A 3 94 338418 2480.66 551 539 136.2
B 4 171 290206 1948.22 696 673 148.6
B 9 254 204826 1373.71 696 673 148.6
B 10 247 42352 280.45 696 673 148.6
C 13 3 4938341 29731.96 604 598 166.1
C 9 38 183128 1099.08 604 598 166.1
C 12 252 76933 459.64 604 598 166.1
D 2 249 274867 1430.26 681 652 191.7
D 8 240 264774 1377.61 681 652 191.7
D 6 239 111318 577.21 681 652 191.7

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