ASTROSAT CZTI

Data Quality Report

Orbit 53032

Creation date: 2025-07-18T10:11:28.776142
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_53032cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53032cztM0_level2_quad_clean.evt
Size (bytes)762,304,32072,973,440
Size727.0 MB 69.6 MB
Events in quadrant A6,881,570418,807
Events in quadrant B4,120,179588,067
Events in quadrant C7,229,009450,647
Events in quadrant D9,522,833332,905

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247861
B0165402
C0257021
D0324901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6005181030.141549%
B60042303.830779%
C6004124720.769487%
D6005228738.084929%

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 7045 6006 1773 1773 25.17% 29.52%
B 7044 6005 152 152 2.16% 2.53%
C 7044 6004 1269 1269 18.02% 21.14%
D 7045 6005 2339 2339 33.20% 38.95%

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 4214490 33765.63 498 485 124.8
A 7 206 415478 3325.22 498 485 124.8
A 0 8 89377 712.26 498 485 124.8
B 10 254 352093 2773.46 597 577 126.7
B 10 44 338082 2662.92 597 577 126.7
B 14 167 260995 2054.7 597 577 126.7
C 1 241 2132206 14230.83 542 539 149.8
C 15 224 1373623 9166.59 542 539 149.8
C 7 80 741958 4949.65 542 539 149.8
D 8 176 2392000 17915.61 455 432 133.5
D 2 153 1887256 14134.5 455 432 133.5
D 12 17 1788652 13395.84 455 432 133.5

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