ASTROSAT CZTI

Data Quality Report

Orbit 53378

Creation date: 2025-08-10T17:55:16.707210
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/AS1C09_011T09_9000006494_53378cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53378cztM0_level2_quad_clean.evt
Size (bytes)755,677,44074,096,640
Size720.7 MB 70.7 MB
Events in quadrant A3,347,690586,100
Events in quadrant B6,172,088562,728
Events in quadrant C13,581,004155,853
Events in quadrant D4,387,192502,151

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142611
B0226311
C0446601
D0173501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62491201.920307%
B625099015.840000%
C6250457373.168000%
D62494437.089134%

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 7014 6250 29 29 0.41% 0.46%
B 7015 6251 596 596 8.50% 9.53%
C 7014 6249 4387 4387 62.55% 70.20%
D 7014 6250 296 296 4.22% 4.74%

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 3 27 202757 1244.61 660 645 162.4
A 15 174 195157 1197.8 660 645 162.4
A 3 62 60929 371.23 660 645 162.4
B 4 171 1400453 10518.89 624 600 133.1
B 4 206 922537 6927.69 624 600 133.1
B 2 249 704270 5287.57 624 600 133.1
C 1 241 9536162 99350.43 346 344 96.0
C 15 178 1586384 16524.41 346 344 96.0
C 15 224 879486 9159.48 346 344 96.0
D 11 245 586876 3289.33 626 599 178.2
D 12 17 473847 2655.18 626 599 178.2
D 2 249 182435 1020.2 626 599 178.2

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