ASTROSAT CZTI

Data Quality Report

Orbit 48317

Creation date: 2024-09-06T13:37:16.303318
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_029T01_9000006422_48317cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48317cztM0_level2_quad_clean.evt
Size (bytes)480,631,680112,345,920
Size458.4 MB 107.1 MB
Events in quadrant A7,181,822743,347
Events in quadrant B3,540,635780,162
Events in quadrant C3,117,185746,132
Events in quadrant D3,442,864675,127

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265762
B0147101
C0137181
D0146841

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65593064.665345%
B65591452.210703%
C6560741.128049%
D65601772.698171%

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 7699 6560 36 36 0.47% 0.55%
B 7699 6560 4 4 0.05% 0.06%
C 7700 6561 10 10 0.13% 0.15%
D 7700 6561 84 84 1.09% 1.28%

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 10 83 4040703 25059.9 775 760 161.2
A 13 248 82216 505.27 775 760 161.2
A 0 31 37730 229.33 775 760 161.2
B 4 21 226559 1494.93 777 755 151.0
B 0 200 123032 809.53 777 755 151.0
B 5 255 37841 245.53 777 755 151.0
C 12 2 108567 595.01 767 770 181.2
C 1 16 15904 83.54 767 770 181.2
C 13 61 5069 23.73 767 770 181.2
D 7 96 233575 1208.31 768 744 192.7
D 2 249 76438 392.83 768 744 192.7
D 12 233 57795 296.08 768 744 192.7

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