ASTROSAT CZTI

Data Quality Report

Orbit 53413

Creation date: 2025-08-13T01:22:14.939195
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_53413cztM0_level2.fits modeM0/AS1C09_011T09_9000006494_53413cztM0_level2_quad_clean.evt
Size (bytes)704,433,60076,498,560
Size671.8 MB 73.0 MB
Events in quadrant A3,755,639578,042
Events in quadrant B5,611,465550,760
Events in quadrant C11,224,734274,413
Events in quadrant D5,022,765496,922

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154472
B0207901
C0373181
D0190861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59502243.764706%
B595099016.638655%
C5950330955.613445%
D59515429.107713%

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 7065 5950 146 146 2.07% 2.45%
B 7065 5950 659 659 9.33% 11.08%
C 7065 5950 3132 3132 44.33% 52.64%
D 7066 5951 487 487 6.89% 8.18%

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 63 655946 4226.64 625 610 155.0
A 8 231 334842 2155.66 625 610 155.0
A 0 8 47925 305.16 625 610 155.0
B 4 206 1990727 16226.17 582 561 122.7
B 1 223 232543 1891.39 582 561 122.7
B 4 171 184878 1502.77 582 561 122.7
C 1 241 5890784 52706.29 403 397 111.8
C 15 224 2477683 22166.38 403 397 111.8
C 9 38 544042 4864.45 403 397 111.8
D 11 245 1312681 7780.91 597 571 168.6
D 13 46 455325 2696.72 597 571 168.6
D 3 12 233278 1379.97 597 571 168.6

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