ASTROSAT CZTI

Data Quality Report

Orbit 54317

Creation date: 2025-10-13T00:13:45.265145
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_126T15_9000006516_54317cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54317cztM0_level2_quad_clean.evt
Size (bytes)780,508,80093,093,120
Size744.4 MB 88.8 MB
Events in quadrant A3,609,587703,644
Events in quadrant B6,145,964626,839
Events in quadrant C7,425,901521,047
Events in quadrant D11,136,027450,889

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162080
B0238140
C0273610
D0381600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74171021.375219%
B7418128217.282286%
C7418156221.056889%
D7418227030.601240%

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 7417 7417 41 41 0.55% 0.55%
B 7418 7418 1019 1019 13.74% 13.74%
C 7418 7418 1426 1426 19.22% 19.22%
D 7418 7418 2213 2213 29.83% 29.83%

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 4 61 159483 830.78 777 758 191.1
A 15 174 140462 731.23 777 758 191.1
A 0 8 83264 431.85 777 758 191.1
B 10 245 3115733 21536.92 678 655 144.6
B 0 213 150448 1035.63 678 655 144.6
B 5 172 68366 468.14 678 655 144.6
C 12 2 3700444 20522.58 652 644 180.3
C 1 241 775488 4298.02 652 644 180.3
C 14 254 141232 779.83 652 644 180.3
D 8 176 6967022 36786.57 667 634 189.4
D 15 108 750967 3962.19 667 634 189.4
D 3 12 338848 1785.97 667 634 189.4

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