ASTROSAT CZTI

Data Quality Report

Orbit 45617

Creation date: 2024-06-27T23:14:15.177515
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_071T08_9000006114_45617cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45617cztM0_level2_quad_clean.evt
Size (bytes)1,492,853,760298,814,400
Size1.4 GB 285.0 MB
Events in quadrant A16,330,2371,996,504
Events in quadrant B11,129,9672,051,013
Events in quadrant C9,414,6401,991,476
Events in quadrant D16,935,9881,713,556

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0606054
B0456454
C0413134
D0636994

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03820
B03820
C03820
D03820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A187895032.677098%
B187897373.922508%
C187903491.857371%
D1879014657.796700%

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 22414 18792 24 24 0.11% 0.13%
B 22414 18792 383 383 1.71% 2.04%
C 22415 18794 135 135 0.60% 0.72%
D 22415 18793 1099 1099 4.90% 5.85%

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 7915193 18089.24 2126 2080 437.4
A 0 243 102019 228.46 2126 2080 437.4
A 13 248 53030 116.47 2126 2080 437.4
B 5 172 1103696 2721.92 2092 2025 404.7
B 15 201 592759 1459.54 2092 2025 404.7
B 3 112 452517 1113.04 2092 2025 404.7
C 12 2 827049 1694.65 2085 2096 486.8
C 14 254 285963 583.13 2085 2096 486.8
C 0 207 104974 211.34 2085 2096 486.8
D 11 241 3259818 6365.75 2042 1978 511.8
D 8 129 2828173 5522.33 2042 1978 511.8
D 11 224 742888 1447.72 2042 1978 511.8

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