ASTROSAT CZTI

Data Quality Report

Orbit 07954

Creation date: 2024-06-27T15:25:57.313454
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/AS1G06_117T01_9000001086_07954cztM0_level2.evt modeM0/AS1G06_117T01_9000001086_07954cztM0_level2_quad_clean.evt
Size (bytes)204,042,24025,338,240
Size194.6 MB 24.2 MB
Events in quadrant A1,451,842134,561
Events in quadrant B1,498,514137,188
Events in quadrant C1,396,195133,794
Events in quadrant D1,607,865128,257

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066101
B067021
C065891
D070501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A327510.030534%
B327540.122137%
C327530.091603%
D3275160.488550%

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 3275 3275 0 0 0.00% 0.00%
B 3275 3275 2 2 0.06% 0.06%
C 3275 3275 0 0 0.00% 0.00%
D 3275 3275 11 11 0.34% 0.34%

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 14 4729 55.4 374 366 78.8
A 8 15 3853 44.27 374 366 78.8
A 0 226 3557 40.51 374 366 78.8
B 0 214 17585 232.34 374 364 74.1
B 4 239 17146 226.41 374 364 74.1
B 12 111 8156 105.12 374 364 74.1
C 1 16 3220 34.17 356 357 83.8
C 13 61 2782 28.94 356 357 83.8
C 14 67 1193 9.98 356 357 83.8
D 1 52 98395 1004.43 354 345 97.6
D 2 136 54381 553.55 354 345 97.6
D 5 233 35161 356.66 354 345 97.6

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