ASTROSAT CZTI

Data Quality Report

Orbit 47389

Creation date: 2024-07-03T05:25:40.385207
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/AS1A13_093T25_9000006324_47389cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47389cztM0_level2_quad_clean.evt
Size (bytes)461,206,080107,377,920
Size439.8 MB 102.4 MB
Events in quadrant A6,916,904703,245
Events in quadrant B3,191,037752,753
Events in quadrant C3,104,007705,874
Events in quadrant D3,365,444644,396

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248392
B0137472
C0137842
D0146202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63793255.094842%
B6379450.705440%
C6378180.282220%
D6378851.332706%

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 7524 6379 148 148 1.97% 2.32%
B 7524 6380 3 3 0.04% 0.05%
C 7523 6379 6 6 0.08% 0.09%
D 7523 6379 72 72 0.96% 1.13%

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 10 83 3547623 23306.16 729 714 152.2
A 9 191 463727 3042.38 729 714 152.2
A 15 235 76751 499.63 729 714 152.2
B 0 190 90450 614.54 743 719 146.0
B 0 198 28002 186.85 743 719 146.0
B 0 200 23056 152.98 743 719 146.0
C 0 207 257728 1497.78 724 726 171.6
C 3 233 13314 73.36 724 726 171.6
C 12 250 7902 41.82 724 726 171.6
D 2 249 411681 2272.43 715 693 180.9
D 13 23 44426 241.81 715 693 180.9
D 12 33 38039 206.49 715 693 180.9

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