ASTROSAT CZTI

Data Quality Report

Orbit 53297

Creation date: 2025-08-05T06:05:48.664042
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_011T08_9000006492_53297cztM0_level2.fits modeM0/AS1C09_011T08_9000006492_53297cztM0_level2_quad_clean.evt
Size (bytes)594,210,24088,974,720
Size566.7 MB 84.9 MB
Events in quadrant A3,123,514632,529
Events in quadrant B4,132,191672,254
Events in quadrant C10,618,414366,360
Events in quadrant D3,623,357575,367

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140962
B0167143
C0358492
D0154712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6418771.199751%
B64172473.849151%
C6417281543.867851%
D64171101.714197%

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 7588 6419 40 40 0.53% 0.62%
B 7587 6418 128 128 1.69% 1.99%
C 7587 6418 2516 2516 33.16% 39.20%
D 7587 6418 85 85 1.12% 1.32%

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 141069 837.83 673 657 167.6
A 7 206 77998 461.49 673 657 167.6
A 15 174 72422 428.22 673 657 167.6
B 2 249 308889 2185.05 669 646 141.1
B 10 28 228305 1613.81 669 646 141.1
B 4 206 225855 1596.44 669 646 141.1
C 1 241 6159317 43757.06 510 507 140.8
C 15 224 1290319 9163.84 510 507 140.8
C 9 38 567874 4031.02 510 507 140.8
D 13 170 144455 772.32 655 628 186.2
D 3 12 139503 745.73 655 628 186.2
D 6 239 125700 671.61 655 628 186.2

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