ASTROSAT CZTI

Data Quality Report

Orbit 45545

Creation date: 2024-06-27T23:13:26.637844
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_071T02_9000006106_45545cztM0_level2.fits modeM0/AS1A13_071T02_9000006106_45545cztM0_level2_quad_clean.evt
Size (bytes)484,545,600113,417,280
Size462.1 MB 108.2 MB
Events in quadrant A6,003,186753,235
Events in quadrant B3,432,699796,679
Events in quadrant C3,383,342758,627
Events in quadrant D4,617,357677,241

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223241
B0143661
C0143061
D0181561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64383265.063684%
B64391542.391676%
C64391322.050008%
D64393265.062898%

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 8674 6440 48 48 0.55% 0.75%
B 8675 6441 41 41 0.47% 0.64%
C 8675 6441 51 51 0.59% 0.79%
D 8675 6441 180 180 2.07% 2.79%

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 2655383 16526.85 780 764 160.6
A 13 248 153814 952.84 780 764 160.6
A 15 174 142701 883.66 780 764 160.6
B 5 172 201377 1302.57 783 760 154.0
B 15 201 93815 604.19 783 760 154.0
B 0 186 34121 216.61 783 760 154.0
C 14 254 266853 1449.23 778 783 183.6
C 12 2 74444 401.22 778 783 183.6
C 1 3 5500 25.69 778 783 183.6
D 13 249 699086 3626.55 765 743 192.6
D 1 52 414222 2147.23 765 743 192.6
D 5 222 157566 814.39 765 743 192.6

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