ASTROSAT CZTI

Data Quality Report

Orbit 33512

Creation date: 2024-06-27T20:49:38.609753
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/AS1A11_060T01_9000004804_33512cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33512cztM0_level2_quad_clean.evt
Size (bytes)454,841,28049,504,320
Size433.8 MB 47.2 MB
Events in quadrant A2,402,476294,493
Events in quadrant B3,623,059294,823
Events in quadrant C3,590,636287,992
Events in quadrant D3,819,832270,786

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100663
B0139342
C0137182
D0145662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4996100.200160%
B49962685.364291%
C49961803.602882%
D49962354.703763%

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 9213 4998 0 0 0.00% 0.00%
B 9213 4998 181 181 1.96% 3.62%
C 9213 4998 166 166 1.80% 3.32%
D 9213 4997 214 214 2.32% 4.28%

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 13 254 7905 58.58 619 607 124.6
A 13 6 7359 54.2 619 607 124.6
A 3 137 6165 44.61 619 607 124.6
B 5 255 966207 8308.64 611 595 116.2
B 5 172 226643 1945.04 611 595 116.2
B 15 222 22582 189.19 611 595 116.2
C 9 236 661343 4742.3 604 612 139.3
C 15 214 230177 1647.67 604 612 139.3
C 0 10 192276 1375.64 604 612 139.3
D 2 120 590832 4039.75 599 583 146.1
D 8 195 510197 3487.87 599 583 146.1
D 12 6 155915 1063.12 599 583 146.1

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