ASTROSAT CZTI

Data Quality Report

Orbit 15592

Creation date: 2024-06-27T17:10:51.247839
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/AS1A04_037T02_9000002310_15592cztM0_level2.evt modeM0/AS1A04_037T02_9000002310_15592cztM0_level2_quad_clean.evt
Size (bytes)495,743,04074,208,960
Size472.8 MB 70.8 MB
Events in quadrant A3,796,545443,727
Events in quadrant B3,463,658453,217
Events in quadrant C3,400,443434,608
Events in quadrant D3,877,072427,469

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155723
B0146432
C0144792
D0161012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70051251.784440%
B70051351.927195%
C70051161.655960%
D70051842.626695%

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 7541 7006 7 7 0.09% 0.10%
B 7541 7006 6 6 0.08% 0.09%
C 7541 7006 0 0 0.00% 0.00%
D 7541 7006 74 74 0.98% 1.06%

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 0 253 443592 2507.62 864 844 176.6
A 13 248 11800 62.05 864 844 176.6
A 15 239 7867 39.78 864 844 176.6
B 0 189 42610 252.07 858 835 165.7
B 12 111 18927 109.17 858 835 165.7
B 11 111 16608 95.18 858 835 165.7
C 14 238 127056 652.52 827 832 193.4
C 3 233 45981 233.4 827 832 193.4
C 13 61 5838 25.88 827 832 193.4
D 4 95 238801 1162.34 841 818 204.7
D 5 51 209782 1020.61 841 818 204.7
D 12 222 48630 233.52 841 818 204.7

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