ASTROSAT CZTI

Data Quality Report

Orbit 09305

Creation date: 2024-06-27T15:44:19.005326
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/AS1G07_077T04_9000001312_09305cztM0_level2.evt modeM0/AS1G07_077T04_9000001312_09305cztM0_level2_quad_clean.evt
Size (bytes)463,622,40094,697,280
Size442.1 MB 90.3 MB
Events in quadrant A3,477,832604,172
Events in quadrant B3,277,657617,185
Events in quadrant C3,314,205614,189
Events in quadrant D3,541,992591,687

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145173
B0140145
C0140942
D0149032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63161292.042432%
B6315460.728424%
C6316400.633312%
D63161672.644079%

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 7556 6317 70 70 0.93% 1.11%
B 7556 6316 4 4 0.05% 0.06%
C 7556 6317 6 6 0.08% 0.09%
D 7556 6317 127 127 1.68% 2.01%

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 15 239 199745 1285.57 768 752 154.8
A 8 5 165202 1062.41 768 752 154.8
A 5 16 91715 587.66 768 752 154.8
B 0 219 110111 745.81 778 761 146.6
B 0 214 63827 430.13 778 761 146.6
B 8 234 43911 294.3 778 761 146.6
C 9 68 322889 1842.49 765 770 174.8
C 13 61 5869 29.17 765 770 174.8
C 14 67 5026 24.34 765 770 174.8
D 1 52 415861 2227.96 750 734 186.3
D 12 227 153389 819.29 750 734 186.3
D 7 71 56598 299.82 750 734 186.3

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