ASTROSAT CZTI

Data Quality Report

Orbit 12197

Creation date: 2024-06-27T16:23:41.317332
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/AS1G08_010T03_9000001800_12197cztM0_level2.evt modeM0/AS1G08_010T03_9000001800_12197cztM0_level2_quad_clean.evt
Size (bytes)464,578,56084,254,400
Size443.1 MB 80.4 MB
Events in quadrant A3,109,172544,616
Events in quadrant B3,518,611545,412
Events in quadrant C2,865,992538,897
Events in quadrant D4,166,745501,559

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131022
B0143541
C0127391
D0165761

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6021761.262249%
B60211953.238665%
C6021490.813818%
D60213906.477329%

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 7062 6023 7 7 0.10% 0.12%
B 7062 6023 87 87 1.23% 1.44%
C 7062 6023 19 19 0.27% 0.32%
D 7062 6023 284 284 4.02% 4.72%

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 1 162 106320 728.56 709 691 145.0
A 1 178 58704 400.14 709 691 145.0
A 1 161 50892 346.26 709 691 145.0
B 4 239 631704 4734.59 699 684 133.3
B 15 204 65820 488.72 699 684 133.3
B 11 51 49638 367.31 699 684 133.3
C 15 208 194050 1237.02 677 681 156.3
C 14 234 12771 77.34 677 681 156.3
C 4 175 6755 38.86 677 681 156.3
D 1 52 1074821 6816.24 659 642 157.6
D 4 95 280528 1776.03 659 642 157.6
D 10 50 223791 1416.0 659 642 157.6

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