ASTROSAT CZTI

Data Quality Report

Orbit 32384

Creation date: 2024-06-27T20:39:37.110381
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/AS1T04_059T01_9000004704_32384cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32384cztM0_level2_quad_clean.evt
Size (bytes)975,755,52073,235,520
Size930.6 MB 69.8 MB
Events in quadrant A3,439,438511,343
Events in quadrant B10,169,807417,728
Events in quadrant C10,439,984316,363
Events in quadrant D5,026,234477,735

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147333
B0350932
C0358382
D0197142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7064480.679502%
B7064207429.360136%
C7064306243.346546%
D70642854.034541%

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 7694 7065 1 1 0.01% 0.01%
B 7694 7065 1291 1291 16.78% 18.27%
C 7694 7065 2391 2391 31.08% 33.84%
D 7694 7065 234 234 3.04% 3.31%

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 12 96 73525 416.27 868 849 174.6
A 13 254 12856 68.77 868 849 174.6
A 3 137 8891 46.06 868 849 174.6
B 4 80 4841345 32396.6 786 767 149.4
B 6 159 1853489 12399.74 786 767 149.4
B 10 245 124928 830.97 786 767 149.4
C 3 233 7683833 50602.49 650 652 151.8
C 14 238 112592 737.25 650 652 151.8
C 0 10 37306 241.41 650 652 151.8
D 8 195 623690 3115.62 832 810 199.9
D 12 218 506414 2529.01 832 810 199.9
D 12 233 220072 1096.74 832 810 199.9

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