ASTROSAT CZTI

Data Quality Report

Orbit 53010

Creation date: 2025-07-17T02:22:26.017512
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_53010cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53010cztM0_level2_quad_clean.evt
Size (bytes)1,315,059,84055,944,000
Size1.2 GB 53.4 MB
Events in quadrant A16,936,41336,543
Events in quadrant B3,592,667691,064
Events in quadrant C11,581,079403,452
Events in quadrant D16,035,20979,568

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0549780
B0155570
C0392685
D0523460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6931668296.407445%
B6931911.312942%
C6931290641.927572%
D6931622989.871591%

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 6930 6930 6150 6150 88.74% 88.74%
B 6931 6931 50 50 0.72% 0.72%
C 6931 6931 2390 2390 34.48% 34.48%
D 6930 6930 5366 5366 77.43% 77.43%

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 14097562 199097.98 276 269 70.8
A 15 190 1293368 18262.61 276 269 70.8
A 12 80 193021 2722.26 276 269 70.8
B 10 63 130114 858.21 709 683 150.8
B 4 81 115482 761.19 709 683 150.8
B 10 191 99210 653.3 709 683 150.8
C 15 224 5242215 32362.11 583 576 162.0
C 12 254 1101706 6798.42 583 576 162.0
C 9 38 964252 5949.78 583 576 162.0
D 2 62 5831324 58071.51 334 317 100.4
D 8 176 2607885 25969.0 334 317 100.4
D 12 17 2401594 23914.53 334 317 100.4

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