ASTROSAT CZTI

Data Quality Report

Orbit 53053

Creation date: 2025-07-19T20:16:25.567057
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_53053cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53053cztM0_level2_quad_clean.evt
Size (bytes)1,015,300,80088,787,520
Size968.3 MB 84.7 MB
Events in quadrant A7,707,324645,588
Events in quadrant B7,256,503617,529
Events in quadrant C13,915,735327,667
Events in quadrant D8,118,123569,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281550
B0269240
C0465473
D0294660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A758494712.486814%
B7584151219.936709%
C7583414354.635369%
D7584109214.398734%

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 7584 737 737 9.72% 9.72%
B 7584 7584 1097 1097 14.46% 14.46%
C 7583 7583 3925 3925 51.76% 51.76%
D 7584 7584 1072 1072 14.14% 14.14%

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 2094543 11150.68 760 743 187.8
A 7 206 1322678 7040.06 760 743 187.8
A 0 8 551962 2935.56 760 743 187.8
B 1 255 2723825 18530.5 690 666 147.0
B 10 63 1294456 8803.96 690 666 147.0
B 4 81 131413 889.7 690 666 147.0
C 1 241 9027817 60895.29 540 535 148.2
C 15 224 1007807 6794.75 540 535 148.2
C 15 244 650902 4387.18 540 535 148.2
D 12 17 2157027 10281.15 729 692 209.7
D 0 5 1579374 7526.97 729 692 209.7
D 3 224 321062 1527.49 729 692 209.7

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