ASTROSAT CZTI

Data Quality Report

Orbit 29584

Creation date: 2024-06-27T20:05:43.751615
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/AS1A10_093T01_9000004266_29584cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29584cztM0_level2_quad_clean.evt
Size (bytes)690,825,60094,628,160
Size658.8 MB 90.2 MB
Events in quadrant A3,126,685650,728
Events in quadrant B4,804,797654,732
Events in quadrant C3,456,517607,368
Events in quadrant D9,098,750502,996

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134621
B0186991
C0144341
D0315011

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6433330.512980%
B64322874.462065%
C64323986.187811%
D6432173226.927861%

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 7563 6434 2 2 0.03% 0.03%
B 7562 6432 125 125 1.65% 1.94%
C 7561 6432 1 1 0.01% 0.02%
D 7562 6432 1659 1659 21.94% 25.79%

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 9 143 32710 200.74 792 777 159.1
A 0 13 18764 113.07 792 777 159.1
A 1 113 12654 74.66 792 777 159.1
B 0 189 1589087 10712.8 787 767 148.3
B 5 172 56594 376.54 787 767 148.3
B 0 190 39793 263.22 787 767 148.3
C 14 238 237036 1354.91 752 760 174.4
C 14 254 163818 935.05 752 760 174.4
C 3 233 78145 443.76 752 760 174.4
D 7 80 5580002 34788.61 673 657 160.4
D 8 195 392520 2443.36 673 657 160.4
D 7 238 215024 1336.63 673 657 160.4

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