ASTROSAT CZTI

Data Quality Report

Orbit 20231114_A13_065T06_9000005924_level2

Creation date: 2023-11-20T13:05:28.472870
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/AS1A13_065T06_9000005924cztM0_level2.fits modeM0/AS1A13_065T06_9000005924cztM0_level2_quad_clean.evt
Size (bytes)1,307,016,0001,341,213,120
Size1.2 GB 1.2 GB
Events in quadrant A5,636,1805,572,692
Events in quadrant B7,967,1348,707,846
Events in quadrant C8,352,9068,300,929
Events in quadrant D6,904,8767,353,084

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032030
B031640
C032100
D032080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02230
B02230
C02230
D02230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07591290
B03678000
C03356600
D04394910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1558546422041.205231%
B15595272044.619370%
C15583819741.266700%
D15575891445.870645%

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 192826 136277 0 0 0.00% 0.00%
B 192826 156015 0 0 0.00% 0.00%
C 192825 155996 0 0 0.00% 0.00%
D 192825 155781 0 0 0.00% 0.00%

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 7 110 4674 8.88 1472 1371 371.9
A 0 29 4669 8.87 1472 1371 371.9
A 15 236 4343 7.99 1472 1371 371.9
B 2 9 7272 12.68 2107 1998 415.8
B 3 17 5939 9.48 2107 1998 415.8
B 2 8 5747 9.02 2107 1998 415.8
C 1 81 6575 7.93 2213 2056 569.9
C 3 202 6466 7.74 2213 2056 569.9
C 1 80 6450 7.71 2213 2056 569.9
D 10 189 5067 5.84 1997 1812 557.3
D 3 14 5056 5.82 1997 1812 557.3
D 7 3 5054 5.82 1997 1812 557.3

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