ASTROSAT CZTI

Data Quality Report

Orbit 23328

Creation date: 2024-06-27T18:52:53.170269
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/AS1A07_148T05_9000003446_23328cztM0_level2.evt modeM0/AS1A07_148T05_9000003446_23328cztM0_level2_quad_clean.evt
Size (bytes)470,272,32093,778,560
Size448.5 MB 89.4 MB
Events in quadrant A3,478,130599,908
Events in quadrant B3,228,525612,918
Events in quadrant C3,276,994586,491
Events in quadrant D3,804,857574,942

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144052
B0136172
C0137012
D0155592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6679861.287618%
B6679400.598892%
C6679751.122923%
D6679831.242701%

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 7674 6679 36 36 0.47% 0.54%
B 7674 6679 0 0 0.00% 0.00%
C 7674 6680 0 0 0.00% 0.00%
D 7674 6679 34 34 0.44% 0.51%

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 6 16 301119 1806.33 824 807 166.3
A 13 254 10309 57.15 824 807 166.3
A 3 137 7216 38.55 824 807 166.3
B 12 111 18802 115.29 817 798 156.2
B 11 111 16965 103.52 817 798 156.2
B 14 111 14773 89.49 817 798 156.2
C 14 238 126565 679.69 787 792 185.0
C 7 247 42375 224.72 787 792 185.0
C 10 9 19609 101.69 787 792 185.0
D 1 52 368947 1888.56 800 777 194.9
D 7 238 273326 1398.06 800 777 194.9
D 13 104 87527 444.99 800 777 194.9

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