ASTROSAT CZTI

Data Quality Report

Orbit 54389

Creation date: 2025-10-17T18:47:13.607921
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_126T19_9000006518_54389cztM0_level2.fits modeM0/AS1A14_126T19_9000006518_54389cztM0_level2_quad_clean.evt
Size (bytes)798,600,96093,977,280
Size761.6 MB 89.6 MB
Events in quadrant A3,257,775703,173
Events in quadrant B6,359,455668,976
Events in quadrant C4,351,466671,309
Events in quadrant D15,008,382277,458

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155620
B0242560
C0183790
D0498260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75371642.175932%
B7538115815.362165%
C75371862.467825%
D7537445759.134934%

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 7537 7537 0 0 0.00% 0.00%
B 7538 7538 737 737 9.78% 9.78%
C 7537 7537 79 79 1.05% 1.05%
D 7537 7537 4028 4028 53.44% 53.44%

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 4 3 22147 106.15 823 801 201.1
A 7 221 20907 99.98 823 801 201.1
A 13 254 16251 76.83 823 801 201.1
B 10 14 2703774 16571.58 759 732 163.1
B 4 81 297528 1819.57 759 732 163.1
B 0 171 153479 936.45 759 732 163.1
C 9 38 464560 2164.5 791 785 214.3
C 14 254 138147 641.09 791 785 214.3
C 1 241 117733 545.81 791 785 214.3
D 8 176 12307388 84249.51 513 489 146.1
D 15 108 182604 1246.7 513 489 146.1
D 10 181 147074 1003.48 513 489 146.1

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