ASTROSAT CZTI

Data Quality Report

Orbit 53096

Creation date: 2025-07-23T14:05:55.215281
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/AS1C09_011T07_9000006488_53096cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53096cztM0_level2_quad_clean.evt
Size (bytes)2,706,148,800192,061,440
Size2.5 GB 183.2 MB
Events in quadrant A40,777,002475,877
Events in quadrant B11,313,5601,813,988
Events in quadrant C34,514,148795,640
Events in quadrant D12,153,7761,461,908

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01337024
B0469034
C01150534
D0496334

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183751406676.549660%
B183755943.232653%
C183761012455.093600%
D1837610315.610579%

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 21405 18376 12803 12803 59.81% 69.67%
B 21405 18379 317 317 1.48% 1.72%
C 21406 18378 9330 9330 43.59% 50.77%
D 21406 18380 864 864 4.04% 4.70%

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 9 191 30067613 103576.29 1174 1148 290.3
A 6 248 1928378 6639.14 1174 1148 290.3
A 7 206 1846322 6356.46 1174 1148 290.3
B 14 167 1533137 3950.2 1846 1787 387.7
B 2 249 1135078 2923.38 1846 1787 387.7
B 10 247 307398 788.34 1846 1787 387.7
C 1 241 10218121 28775.97 1285 1272 355.0
C 15 224 6959697 19598.55 1285 1272 355.0
C 9 38 6254981 17613.7 1285 1272 355.0
D 12 17 2017628 3913.28 1791 1710 515.1
D 12 3 737220 1427.76 1791 1710 515.1
D 2 62 457091 883.98 1791 1710 515.1

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