ASTROSAT CZTI

Data Quality Report

Orbit 53036

Creation date: 2025-07-18T16:26:12.008640
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_011T07_9000006488_53036cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53036cztM0_level2_quad_clean.evt
Size (bytes)792,538,56079,660,800
Size755.8 MB 76.0 MB
Events in quadrant A9,453,047431,351
Events in quadrant B3,152,353648,008
Events in quadrant C6,339,178505,813
Events in quadrant D9,894,876377,613

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0325291
B0141681
C0233261
D0338781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6437223834.767749%
B64371642.547771%
C643796414.975920%
D6438221934.467226%

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 7456 6436 2031 2031 27.24% 31.56%
B 7457 6437 32 32 0.43% 0.50%
C 7457 6437 859 859 11.52% 13.34%
D 7458 6438 2143 2143 28.73% 33.29%

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 9 191 5780195 40642.95 573 559 142.2
A 7 206 857797 6028.18 573 559 142.2
A 4 249 319530 2243.03 573 559 142.2
B 4 81 122679 887.94 652 630 137.5
B 10 44 92886 671.19 652 630 137.5
B 5 173 63562 457.85 652 630 137.5
C 15 224 1795625 11005.99 594 587 163.1
C 1 241 793624 4862.38 594 587 163.1
C 12 2 479023 2933.45 594 587 163.1
D 8 176 3550037 22923.78 529 501 154.8
D 12 17 1665117 10750.5 529 501 154.8
D 15 78 1138524 7349.63 529 501 154.8

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