ASTROSAT CZTI

Data Quality Report

Orbit 46025

Creation date: 2024-06-27T23:18:53.007634
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_033T02_9000006154_46025cztM0_level2.fits modeM0/AS1A13_033T02_9000006154_46025cztM0_level2_quad_clean.evt
Size (bytes)534,133,440111,911,040
Size509.4 MB 106.7 MB
Events in quadrant A5,863,662741,824
Events in quadrant B6,892,449737,247
Events in quadrant C3,025,643771,872
Events in quadrant D3,496,060692,684

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216232
B0250462
C0133062
D0147682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63792163.386111%
B637972011.287036%
C6378330.517404%
D6378510.799624%

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 7619 6380 41 41 0.54% 0.64%
B 7619 6379 369 369 4.84% 5.78%
C 7617 6377 9 9 0.12% 0.14%
D 7617 6377 33 33 0.43% 0.52%

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 2899388 18645.16 749 735 155.5
A 13 248 51971 329.57 749 735 155.5
A 0 247 12615 76.42 749 735 155.5
B 3 112 3886960 27089.09 736 715 143.5
B 4 171 83868 579.62 736 715 143.5
B 12 111 17654 118.07 736 715 143.5
C 2 14 51482 284.06 758 765 178.5
C 3 233 9698 50.03 758 765 178.5
C 13 61 5134 24.47 758 765 178.5
D 1 52 248693 1333.09 744 723 186.0
D 2 249 156365 836.73 744 723 186.0
D 2 37 140995 754.1 744 723 186.0

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