ASTROSAT CZTI

Data Quality Report

Orbit 53567

Creation date: 2025-08-25T11:16:45.826343
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/AS1A14_004T05_9000006502_53567cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53567cztM0_level2_quad_clean.evt
Size (bytes)917,962,56079,223,040
Size875.4 MB 75.6 MB
Events in quadrant A9,662,703462,330
Events in quadrant B3,525,736687,198
Events in quadrant C6,245,510580,376
Events in quadrant D14,017,482192,205

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0334242
B0152222
C0232032
D0463992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6834226933.201639%
B68341382.019315%
C68346629.686860%
D6834476269.681007%

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 7699 6836 1901 1901 24.69% 27.81%
B 7699 6836 52 52 0.68% 0.76%
C 7699 6836 630 630 8.18% 9.22%
D 7699 6835 3708 3708 48.16% 54.25%

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 3 62 3956025 24981.97 644 629 158.3
A 3 63 1119631 7067.53 644 629 158.3
A 15 174 884629 5583.28 644 629 158.3
B 4 170 142322 890.0 733 707 159.1
B 5 185 78759 490.53 733 707 159.1
B 10 28 67185 417.79 733 707 159.1
C 7 64 1877558 9696.03 704 699 193.6
C 15 224 1020714 5269.49 704 699 193.6
C 4 5 81397 416.89 704 699 193.6
D 8 176 9435948 91914.93 358 343 102.7
D 2 172 2814258 27411.15 358 343 102.7
D 3 12 79742 773.45 358 343 102.7

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