ASTROSAT CZTI

Data Quality Report

Orbit 08712

Creation date: 2024-06-27T15:36:11.626448
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/AS1A02_132T01_9000001212_08712cztM0_level2.evt modeM0/AS1A02_132T01_9000001212_08712cztM0_level2_quad_clean.evt
Size (bytes)201,896,64040,302,720
Size192.5 MB 38.4 MB
Events in quadrant A1,468,595251,599
Events in quadrant B1,494,963261,839
Events in quadrant C1,446,244259,775
Events in quadrant D1,514,139248,514

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060152
B061454
C059641
D061891

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2772491.767677%
B2771511.840491%
C2772240.865801%
D2772351.262626%

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 4092 2772 0 0 0.00% 0.00%
B 4092 2772 0 0 0.00% 0.00%
C 4092 2773 0 0 0.00% 0.00%
D 4092 2773 9 9 0.22% 0.32%

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 15 174 13714 172.12 375 368 77.5
A 13 251 10151 126.17 375 368 77.5
A 0 226 3549 41.02 375 368 77.5
B 4 173 17846 239.14 377 369 73.1
B 12 111 7456 96.97 377 369 73.1
B 11 111 6146 79.05 377 369 73.1
C 14 234 5212 56.01 369 371 86.4
C 13 61 2793 28.02 369 371 86.4
C 12 4 1319 10.97 369 371 86.4
D 12 233 66938 749.36 366 357 88.9
D 1 52 42212 471.07 366 357 88.9
D 2 234 10740 116.86 366 357 88.9

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