ASTROSAT CZTI

Data Quality Report

Orbit 46921

Creation date: 2024-06-27T23:29:27.088439
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_053T01_9000006282_46921cztM0_level2.fits modeM0/AS1A13_053T01_9000006282_46921cztM0_level2_quad_clean.evt
Size (bytes)541,045,44091,301,760
Size516.0 MB 87.1 MB
Events in quadrant A5,641,635618,995
Events in quadrant B7,966,424544,705
Events in quadrant C2,506,254624,137
Events in quadrant D3,455,729563,543

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202431
B0278111
C0119731
D0144506

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59032073.506692%
B5903132822.497035%
C5904260.440379%
D59032143.625275%

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 6903 5903 68 68 0.99% 1.15%
B 6903 5903 958 958 13.88% 16.23%
C 6904 5904 2 2 0.03% 0.03%
D 6902 5902 176 176 2.55% 2.98%

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 2887002 21586.8 645 630 133.7
A 13 248 246936 1842.09 645 630 133.7
A 9 191 9056 63.02 645 630 133.7
B 3 112 5439252 45519.34 603 584 119.5
B 0 245 44843 370.43 603 584 119.5
B 5 32 34679 285.36 603 584 119.5
C 0 207 17516 112.76 636 639 149.7
C 1 3 6152 36.83 636 639 149.7
C 15 208 5381 31.68 636 639 149.7
D 13 249 732727 4535.57 634 614 161.4
D 2 249 122318 753.98 634 614 161.4
D 1 52 93257 573.94 634 614 161.4

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