ASTROSAT CZTI

Data Quality Report

Orbit 24109

Creation date: 2024-06-27T19:02:16.479600
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/AS1C05_012T04_9000003564_24109cztM0_level2.evt modeM0/AS1C05_012T04_9000003564_24109cztM0_level2_quad_clean.evt
Size (bytes)544,124,160125,524,800
Size518.9 MB 119.7 MB
Events in quadrant A3,084,498858,187
Events in quadrant B3,192,046871,851
Events in quadrant C3,234,552843,200
Events in quadrant D6,508,214756,335

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137432
B0140052
C0140672
D0239852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6778140.206551%
B6778280.413101%
C6778681.003246%
D677886412.747123%

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 7698 6779 0 0 0.00% 0.00%
B 7698 6779 3 3 0.04% 0.04%
C 7698 6779 4 4 0.05% 0.06%
D 7698 6779 694 694 9.02% 10.24%

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 2 250 17350 104.48 795 777 158.6
A 13 254 11743 69.13 795 777 158.6
A 3 137 7020 39.36 795 777 158.6
B 0 228 53438 348.29 795 776 151.2
B 12 111 18653 118.23 795 776 151.2
B 11 111 16029 100.88 795 776 151.2
C 14 238 123122 679.48 769 772 180.1
C 3 233 90422 497.87 769 772 180.1
C 7 247 20321 108.57 769 772 180.1
D 8 195 1978794 11227.54 718 696 176.2
D 12 233 1239551 7031.65 718 696 176.2
D 1 52 484307 2744.94 718 696 176.2

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