ASTROSAT CZTI

Data Quality Report

Orbit 48053

Creation date: 2024-08-17T00:27:31.393175
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_037T05_9000006392_48053cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48053cztM0_level2_quad_clean.evt
Size (bytes)554,811,840107,038,080
Size529.1 MB 102.1 MB
Events in quadrant A7,377,617711,578
Events in quadrant B3,560,589747,389
Events in quadrant C3,308,618711,087
Events in quadrant D5,775,160606,847

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265062
B0151624
C0146932
D0219402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66533875.816925%
B66521632.450391%
C66521041.563440%
D66525678.523752%

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 7743 6654 91 91 1.18% 1.37%
B 7742 6653 55 55 0.71% 0.83%
C 7742 6653 65 65 0.84% 0.98%
D 7742 6653 461 461 5.95% 6.93%

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 10 83 4450485 28382.41 746 730 156.8
A 0 243 20652 127.07 746 730 156.8
A 13 254 11050 65.83 746 730 156.8
B 4 171 138753 919.24 751 729 150.2
B 7 221 135567 898.02 751 729 150.2
B 0 200 114968 760.83 751 729 150.2
C 12 2 240998 1401.45 726 731 171.4
C 14 254 111045 643.45 726 731 171.4
C 0 207 71588 413.3 726 731 171.4
D 2 165 1548382 8574.17 710 687 180.5
D 2 249 478745 2648.42 710 687 180.5
D 7 67 381140 2107.69 710 687 180.5

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