ASTROSAT CZTI

Data Quality Report

Orbit 43803

Creation date: 2024-06-27T22:55:57.519653
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/AS1A13_018T01_9000005906_43803cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43803cztM0_level2_quad_clean.evt
Size (bytes)608,670,720104,057,280
Size580.5 MB 99.2 MB
Events in quadrant A4,925,675723,625
Events in quadrant B3,487,879774,410
Events in quadrant C8,329,326538,206
Events in quadrant D5,268,127647,363

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190092
B0146652
C0291842
D0202713

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67033194.759063%
B6703991.476951%
C6703206430.792183%
D67024066.057893%

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 7723 6705 154 154 1.99% 2.30%
B 7723 6705 19 19 0.25% 0.28%
C 7723 6705 1951 1951 25.26% 29.10%
D 7722 6704 283 283 3.66% 4.22%

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 10 83 1014426 6401.11 768 754 158.4
A 15 223 826510 5214.46 768 754 158.4
A 13 248 40640 251.87 768 754 158.4
B 5 235 144807 926.07 784 762 155.5
B 4 170 81403 518.45 784 762 155.5
B 0 183 47681 301.65 784 762 155.5
C 15 174 4984165 29872.83 710 714 166.8
C 15 190 162083 967.31 710 714 166.8
C 14 254 160253 956.34 710 714 166.8
D 12 33 1476281 7695.77 752 730 191.7
D 13 249 178619 927.78 752 730 191.7
D 12 233 126054 653.63 752 730 191.7

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