ASTROSAT CZTI

Data Quality Report

Orbit 03453

Creation date: 2024-06-27T14:29:13.072577
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/AS1G05_167T01_9000000456_03453cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03453cztM0_level2_quad_clean.evt
Size (bytes)1,242,803,520206,009,280
Size1.2 GB 196.5 MB
Events in quadrant A9,292,5211,253,323
Events in quadrant B9,980,8081,263,468
Events in quadrant C8,823,3361,259,152
Events in quadrant D8,315,3271,213,320

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400724
B0412493
C0389013
D0383723

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A181354732.608216%
B181352711.494348%
C181353241.786600%
D181352821.555004%

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 19845 18137 172 172 0.87% 0.95%
B 19845 18139 22 22 0.11% 0.12%
C 19845 18138 156 156 0.79% 0.86%
D 19845 18137 99 99 0.50% 0.55%

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 50 1134604 2617.23 2093 2049 432.7
A 8 15 84902 191.46 2093 2049 432.7
A 12 194 21747 45.52 2093 2049 432.7
B 15 204 1201860 2901.13 2129 2080 413.6
B 14 167 257577 617.8 2129 2080 413.6
B 5 200 97757 231.35 2129 2080 413.6
C 1 192 696653 1480.42 2034 2051 469.2
C 14 234 124969 261.98 2034 2051 469.2
C 13 61 17333 32.57 2034 2051 469.2
D 13 223 380750 773.97 2032 1973 489.4
D 9 85 78378 156.12 2032 1973 489.4
D 12 2 50724 99.61 2032 1973 489.4

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