ASTROSAT CZTI

Data Quality Report

Orbit 13522

Creation date: 2024-06-27T16:42:03.995625
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_048T01_9000001992_13522cztM0_level2.evt modeM0/AS1A04_048T01_9000001992_13522cztM0_level2_quad_clean.evt
Size (bytes)196,637,76027,947,520
Size187.5 MB 26.7 MB
Events in quadrant A1,291,100166,049
Events in quadrant B1,353,273168,600
Events in quadrant C1,598,527165,879
Events in quadrant D1,534,708159,958

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054722
B056201
C063751
D062561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2583331.277584%
B2583562.168022%
C2583481.858304%
D2583461.780875%

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 3154 2585 0 0 0.00% 0.00%
B 3154 2585 3 3 0.10% 0.12%
C 3154 2585 17 17 0.54% 0.66%
D 3154 2585 29 29 0.92% 1.12%

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 1 162 9323 130.95 331 324 68.7
A 1 178 3370 44.32 331 324 68.7
A 1 161 3114 40.6 331 324 68.7
B 4 142 21047 319.55 330 324 64.9
B 0 189 17871 270.57 330 324 64.9
B 4 173 11963 179.47 330 324 64.9
C 3 233 356641 4781.71 317 317 74.5
C 0 207 3605 44.12 317 317 74.5
C 13 61 2348 27.26 317 317 74.5
D 13 104 195522 2523.94 316 305 77.3
D 13 122 51756 665.2 316 305 77.3
D 13 172 49494 635.96 316 305 77.3

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