ASTROSAT CZTI

Data Quality Report

Orbit 54943

Creation date: 2025-11-24T01:53:05.528184
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_014T01_9000006528_54943cztM0_level2.fits modeM0/AS1A14_014T01_9000006528_54943cztM0_level2_quad_clean.evt
Size (bytes)567,858,240113,664,960
Size541.6 MB 108.4 MB
Events in quadrant A4,026,349755,754
Events in quadrant B3,773,834814,619
Events in quadrant C4,944,762702,950
Events in quadrant D7,648,393606,792

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179710
B0172360
C0205590
D0283690

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8075981.213622%
B8076420.520059%
C80752983.690402%
D807594511.702786%

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 8075 8075 80 80 0.99% 0.99%
B 8076 8076 16 16 0.20% 0.20%
C 8075 8075 265 265 3.28% 3.28%
D 8075 8075 897 897 11.11% 11.11%

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 0 8 271602 1221.71 888 865 221.6
A 3 45 190900 857.54 888 865 221.6
A 5 241 50548 224.2 888 865 221.6
B 7 0 83156 436.4 876 845 188.6
B 5 185 51498 268.55 876 845 188.6
B 10 247 46780 243.54 876 845 188.6
C 12 252 406450 1754.3 851 843 231.2
C 4 5 353366 1524.71 851 843 231.2
C 6 223 199654 859.88 851 843 231.2
D 3 12 1598665 6880.71 812 776 232.2
D 11 129 787909 3389.49 812 776 232.2
D 2 249 425768 1830.07 812 776 232.2

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