ASTROSAT CZTI

Data Quality Report

Orbit 47407

Creation date: 2024-07-04T13:27:56.170978
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_053T01_9000006326_47407cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47407cztM0_level2_quad_clean.evt
Size (bytes)616,469,760133,338,240
Size587.9 MB 127.2 MB
Events in quadrant A8,111,838876,965
Events in quadrant B3,873,484926,324
Events in quadrant C3,812,680885,959
Events in quadrant D6,364,413758,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297321
B0176391
C0176271
D0250251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84763964.672015%
B84771371.616138%
C84771481.745901%
D84778009.437301%

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 8591 8476 23 23 0.27% 0.27%
B 8592 8478 4 4 0.05% 0.05%
C 8592 8477 1 1 0.01% 0.01%
D 8592 8478 684 684 7.96% 8.07%

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 4048042 20426.1 950 926 198.1
A 9 191 360392 1814.25 950 926 198.1
A 14 248 24213 117.53 950 926 198.1
B 12 111 24772 127.35 953 920 187.3
B 11 111 22846 117.07 953 920 187.3
B 14 111 21983 112.46 953 920 187.3
C 0 207 34685 149.72 957 957 225.3
C 12 2 22280 94.65 957 957 225.3
C 3 233 9580 38.28 957 957 225.3
D 2 165 1766682 7617.23 923 892 231.8
D 2 249 757686 3264.64 923 892 231.8
D 12 128 256615 1103.13 923 892 231.8

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