ASTROSAT CZTI

Data Quality Report

Orbit 56103

Creation date: 2026-02-10T02:51:23.106272
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_083T03_9000006548_56103cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56103cztM0_level2_quad_clean.evt
Size (bytes)525,836,16098,951,040
Size501.5 MB 94.4 MB
Events in quadrant A6,621,551600,284
Events in quadrant B3,475,900716,551
Events in quadrant C5,003,177599,759
Events in quadrant D3,809,634582,837

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244501
B0152971
C0199732
D0168451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A713975810.617734%
B7139560.784424%
C71394756.653593%
D71391622.269225%

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 7634 7141 689 689 9.03% 9.65%
B 7634 7141 25 25 0.33% 0.35%
C 7633 7139 351 351 4.60% 4.92%
D 7634 7141 124 124 1.62% 1.74%

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 12 115 1237765 7046.6 709 693 175.6
A 3 14 1196260 6810.18 709 693 175.6
A 15 32 821564 4675.84 709 693 175.6
B 9 254 148900 936.06 740 714 158.3
B 10 247 96546 605.35 740 714 158.3
B 7 252 90814 569.14 740 714 158.3
C 12 254 1282573 6754.94 695 687 189.8
C 12 252 251539 1321.87 695 687 189.8
C 15 230 242255 1272.95 695 687 189.8
D 2 120 388581 1933.38 705 673 200.6
D 14 52 152043 754.44 705 673 200.6
D 2 249 122822 608.8 705 673 200.6

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